What AI said about subscription billing software in September 2026
The complete point-in-time record: the question asked, every verbatim answer from the 9 AI models that responded, and the ranking computed from them. Captured September 1, 2026; the answers are immutable.
In September 2026, Stripe Billing was the brand AI recommended most for subscription billing software, named by 7 of 9 AI models.
The September 2026 ranking
as captured: by AI Recommendation ScoreHow this record was captured · 9 AI models · 18 calls
Each AI model was asked the same buyer question, once (18 calls in total):
“What are the best subscription billing software? Recommend the top brands or products that people actually use.”
Captured September 1, 2026 · snapshot db03b82f-4a8c-4a1b-bd1d-b90c0f765b91 · region global
How each AI ranked them
average position per AI model, September 2026No agreement in subscription billing software: Stripe Billing leads for 5 of the 7 AI models, Chargebee for Claude, and 1 other pick splits the rest.
| Brand | |||||||
|---|---|---|---|---|---|---|---|
| #1 | #2 | #1 | #1 | #1 | #2 | #1 | |
| #2 | #1 | #2 | #2 | #2 | #3 | #3 | |
| #4 | #3 | #3 | #3 | #3 | #4 | #5 | |
| #3 | #4 | #6 | #4 | #5 | #5 | #6 | |
| #5 | #5 | #5 | #5 | #4 | – | #4 | |
| – | #7 | #7 | #9 | #9 | #8 | #2 |
Every captured answer
9 answers · verbatim
ChatGPTgpt-5.5-2026-04-23read
Here’s the practical shortlist of subscription billing software that companies actually use, not just obscure tools with good SEO. I’d pick based on business model, not “overall score.”
Best subscription billing software — top picks
| Product | Best for | Why people choose it |
|---|---|---|
| Stripe Billing | Startups, PLG SaaS, developer-led products, companies already using Stripe | Probably the safest default for simple-to-moderately complex SaaS billing. It supports recurring subscriptions, customer portal, smart retries, coupons, trials, invoicing, usage-based billing via Stripe/Metronome, and deep payment integration. Stripe reports $1.9T in 2025 total volume across businesses using Stripe, and says its Revenue suite — Billing, Invoicing, Tax, etc. — is on track for a $1B annual run rate. (stripe.com) |
| Chargebee | SaaS companies that need more subscription ops than Stripe alone | Strong all-around subscription management: plan changes, trials, coupons, dunning, taxes, revenue recognition, analytics, multi-currency, and multiple payment gateways. It’s one of the most commonly evaluated SaaS billing platforms and was included in Gartner’s 2026 Magic Quadrant for recurring billing applications; Chargebee also says it serves 6,500+ customers. (gartner.com) |
| Zuora | Enterprise subscription businesses, complex quote-to-cash, multi-entity billing | The enterprise heavyweight. Best when billing is deeply tied to CPQ, revenue recognition, complex contracts, high invoice volume, multiple gateways, and global operations. Zuora says its Billing product automates invoicing for $96B+ in transactions annually and handles 400K+ invoices per hour. (zuora.com) |
| Recurly | B2C subscriptions, media, memberships, consumer SaaS, churn reduction | Strong for subscription lifecycle management, retention, dunning, subscriber analytics, and commerce-style recurring revenue. Recurly says it supports 100M+ active subscribers and a $16B annual transaction run rate, with brands like Sling, Twitch, Paramount, Scentbird, LiveChat, Sprout Social, and FabFitFun shown on its site. (recurly.com) |
| Paddle | SaaS/digital products selling globally that want Merchant of Record | Best if you want Paddle to handle payment processing, global tax/VAT compliance, fraud, chargebacks, billing support, and subscription management as a Merchant of Record. This is popular with SaaS companies that don’t want to stitch together Stripe + tax + compliance tooling. Paddle says it handles tax compliance in 100+ jurisdictions and supports 200+ countries through its SaaS MoR model. (paddle.com) |
| Maxio | B2B SaaS finance teams, ARR/MRR reporting, rev rec, contracts | Good fit for B2B SaaS companies that care about billing plus finance operations: revenue recognition, SaaS metrics, ARR/MRR/NRR, churn, retention, contracts, invoices, and payments in one place. Maxio says it is trusted by 2,000+ SaaS, AI, and subscription businesses. (maxio.com) |
| Recharge | Shopify/ecommerce subscriptions | The go-to for DTC/ecommerce subscriptions, especially on Shopify: subscribe-and-save, product swaps, customer portals, SMS, churn reduction, and retention workflows. Recharge says it has helped 15,000+ merchants and powers subscriptions for 35M+ subscribers. (getrecharge.com) |
| BillingPlatform | Enterprise usage-based, hybrid, AI, telecom, complex pricing | Best for large businesses with complex usage metering, rating, credits, subscriptions, outcome-based pricing, multi-currency, tax, payments, revenue recognition, and reporting. Gartner’s 2026 recurring billing report includes BillingPlatform among the evaluated vendors. (billingplatform.com) |
My quick recommendations
- Most SaaS startups: use Stripe Billing first unless you already know your billing will be complex.
- SaaS scaling past basic Stripe workflows: evaluate Chargebee and Maxio.
- Enterprise subscription business: shortlist Zuora, BillingPlatform, and Salesforce Revenue Cloud.
- Global SaaS/digital product and you don’t want tax/VAT headaches: use Paddle.
- Consumer subscription, media, memberships, boxes, DTC: evaluate Recurly.
- Shopify subscriptions: start with Recharge; also compare Skio, Loop, Appstle, and Shopify’s native Subscriptions app depending on budget and complexity.
Other real products worth knowing
- Salesforce Revenue Cloud — strong if your company already lives in Salesforce and needs CPQ-to-billing workflows. G2’s 2026 subscription management roundup lists it as best for enterprise quote-to-cash. (learn.g2.com)
- Sage Intacct / NetSuite — more finance/accounting-led than product-led subscription billing; useful when accounting, multi-entity reporting, and ERP integration matter most.
- FastSpring / Cleverbridge — Merchant-of-Record alternatives to Paddle, often used for software, digital goods, and global commerce.
- Zoho Subscriptions — lower-cost option for smaller businesses already in the Zoho ecosystem.
- Appstle, Skio, Loop, Seal Subscriptions — Shopify-focused alternatives to Recharge.
Best overall shortlist
If I had to narrow it to five brands most buyers should evaluate, I’d say:
- Stripe Billing — best default
- Chargebee — best SaaS subscription management layer
- Zuora — best enterprise option
- Paddle — best Merchant of Record for global SaaS
- Recurly — best for consumer subscription retention
If you tell me whether you’re SaaS, ecommerce, membership, marketplace, or usage-based AI/API billing, I can narrow this to the best 2–3 options for your exact case.
Claudeclaude-sonnet-5read
Best Subscription Billing Software (2026)
Based on current market analysis, here are the top subscription billing platforms that businesses actually use, organized by use case:
🏆 Top Overall Picks
1. Chargebee Widely recommended for mid-market SaaS companies. Chargebee wins established mid-market subscription SaaS. It's also praised for its automation capabilities — Chargebee for automation. Notably, Chargebee is free to $1M cumulative billing on its startup plan.
2. Stripe Billing The go-to choice if you're already in the Stripe ecosystem. Stripe Billing wins simple PLG (product-led growth) already on Stripe. It's also strong for more complex needs: best for complex and usage-based billing, for metered billing, invoicing, tax, and revenue recognition.
3. Recurly Often ranked #1 for overall recurring revenue management. Best overall for recurring revenue: Recurly, for its lifecycle coverage across billing, retention, and payment recovery. It's also considered a solid pick for smaller businesses.
4. Zuora The enterprise heavyweight. Zuora wins large enterprise multi-product. Keep in mind, enterprise-grade platforms like Zuora cost $50,000+ annually but handle complex global billing, tax, and revenue recognition needs.
🎯 Specialized/Niche Options
Paddle — Best if you're a SaaS company selling globally and want to avoid building an in-house tax/compliance team. For SaaS teams tired of wiring together payment gateways, tax tools, and subscription logic, Paddle wraps everything into a single merchant-of-record platform that actually owns the messy billing work.
Whop — Best for simplicity, especially for creators and smaller businesses. Whop is where the internet does business – an all-in-one solution that combines payments, product delivery, access control, and analytics, making it a strong choice for a wide range of businesses from creators and service providers to agencies and platforms.
Zoho Billing — Known as best for advanced subscription management, per multiple review roundups.
Odoo Subscriptions — The pick for open-source flexibility.
Metronome / Solvimon — For usage-based/AI companies with unique billing needs: for credit-based pricing, hybrid models and cost-to-charge reconciliation: Solvimon. For pure-usage AI infrastructure at frontier scale: Metronome or a combination of Metronome and Solvimon.
💡 Quick Decision Guide
A simple rule of thumb from industry reviewers: Choose your subscription billing platform based on technical resources: Whop for simplicity, Stripe for customization, Chargebee for automation.
📌 Worth Noting
The subscription billing space is evolving fast — for example, Adyen acquired Orb for $335 million, closing 1 July 2026, alongside Adyen's acquisition of Talon.One, signaling that payment giants are increasingly folding billing infrastructure into their core platforms.
My practical recommendation:
- Startups/solopreneurs: Stripe Billing or Whop (easy setup, low friction)
- Growing SaaS (mid-market): Chargebee or Recurly
- Global SaaS avoiding tax/compliance headaches: Paddle
- Large enterprise with complex billing: Zuora
- Usage-based/AI products: Metronome or Solvimon
If you let me know your company size, industry, and specific needs (e.g., usage-based billing, global sales, tight budget), I can narrow this down further.
Geminigemini-3.5-flashread
Perplexitysonarread
If you want the brands people actually use, the safest shortlist is Stripe Billing, Chargebee, Recurly, Maxio, Paddle, Zuora, and Zoho Billing. These show up repeatedly across 2026 comparison lists and user-review categories, with Stripe Billing, Chargebee, Maxio, and Recurly appearing especially often as top picks.
Here’s the most practical way to think about them:
| Product | Best for | Why it stands out |
|---|---|---|
| Stripe Billing | Developer-led teams, embedded billing, usage-based pricing | Flexible APIs and broad support for recurring billing models; frequently listed as a top choice for technical teams. |
| Chargebee | Growth-stage SaaS and flexible subscription logic | Strong subscription engine, dunning automation, and support for tiered, usage-based, and hybrid pricing. |
| Recurly | Enterprise subscription operations | Known for billing, retention, and revenue-recognition workflows; widely listed among top enterprise options. |
| Maxio | B2B SaaS with complex billing | Built for contract-driven, usage-based, and finance-heavy subscription billing. |
| Paddle | SaaS and digital goods, especially if you want Merchant of Record | Frequently positioned as strong for SaaS/digital products and revenue optimization. |
| Zuora | Large enterprises with advanced subscription needs | Commonly included in “best subscription billing” lists for mature, complex billing environments. |
| Zoho Billing | Smaller teams or Zoho-centric businesses | Often highlighted for invoicing, recurring billing, usage tracking, and accessible pricing. |
If you want the shortest recommendation list:
- Best overall for most SaaS teams: Chargebee.
- Best for developers / Stripe-native teams: Stripe Billing.
- Best for enterprise subscription ops: Recurly or Zuora.
- Best for B2B SaaS finance complexity: Maxio.
- Best for digital products / MoR model: Paddle.
- Best budget-friendly mainstream option: Zoho Billing.
A few sources also surface Revenue 365 and Billsby as notable options, but they appear less consistently across the broader comparison lists than the products above.
If you want, I can also narrow this down to the best 3 for your specific business—for example SaaS, membership, ecommerce subscriptions, or usage-based billing.
DeepSeekdeepseek-v4-flashread
Here’s a breakdown of the best subscription billing software people actually use, grouped by who they’re best for.
Top subscription billing platforms
| Product | Best for | Notable users / vibe |
|---|---|---|
| Stripe Billing | Startups & SaaS that want to stay on Stripe | Fastest to integrate, native Stripe payments, supports metered billing, smart retries, tax automation. |
| Chargebee | Growing SaaS, usage-based billing, self-serve + sales-led | Used by thousands of SaaS companies. Handles subscriptions, trials, invoicing, revenue recognition, dunning, and multi-currency. |
| Recurly | Subscription businesses with high volume & complex plans | Popular with media, e‑commerce, and SaaS. Strong subscription lifecycle management, analytics, and PCI compliance. |
| Zuora | Enterprise-scale “subscription economy” companies | The classic platform for large publishers, telecoms, IoT, and maturing SaaS. Very powerful, but heavyweight. |
| Paddle | SaaS companies selling globally via merchant of record | Paddle handles sales tax/VAT, EU VAT, and compliance for you. Great for software companies that want to avoid tax headaches. |
| Maxio (formerly SaaSOptics + Baremetrics) | B2B SaaS finance and revenue analytics | Great for CFOs of SaaS startups — combines billing, revenue recognition, and metrics in one place. |
| Chargify (now part of Maxio) | B2B SaaS with intricate pricing/per-seat billing | Strong for enterprise subscription management, custom invoicing, and multi-level plans. |
| Ordway | Mid-market SaaS with complex quoting-to-cash needs | Focuses on CPQ, billing, and revenue automation for B2B companies. |
| Zoho Billing | Small businesses on a budget | Affordable, includes subscription billing, invoicing, and payment gateways. Integrates with Zoho ecosystem. |
| GoCardless | Direct debit / ACH recurring payments | Best if you collect recurring bank payments, especially in Europe/UK. Use alongside Stripe or Chargebee. |
Quick recommendations by use case
-
If you’re a startup with revenue under ~$1M → Use Stripe Billing first. It’s simple, developer-friendly, and scales well enough for most early-stage SaaS. Don’t overcomplicate it.
-
If you’re growing fast and need advanced subscription logic (free trials, discounts, coupons, usage-based add-ons, self-serve + sales) → Chargebee is the most common choice. It sits on top of Stripe/PayPal and handles the billing logic so you don’t have to code it all.
-
If you sell globally and don’t want to handle sales tax → Paddle is the best “merchant of record” option. You pay a fee, but Paddle owns compliance, tax filing, and payment notifications. Lemon Squeezy was acquired by Stripe and operates similarly, but Paddle is more popular for B2B SaaS.
-
If you’re a large enterprise with complex revenue recognition and dunning needs → Zuora or Recurly. Zuora is the gold standard, but expensive and heavy. Recurly is more approachable for high-volume subscription businesses.
-
If you’re a B2B SaaS that quotes invoices manually → Maxio or Ordway — both are built for quote-to-cash and SaaS financial reporting.
Things to check before choosing
- Pricing structure — most charge a percentage of revenue or a monthly platform fee. Stripe takes 1% of subscription revenue with Billing, Chargebee starts around $500/mo for advanced plans. Paddle takes a cut of your revenue.
- Tax handling — if you sell to consumers globally, use a merchant of record (Paddle) or integrate Stripe Tax / Chargebee Tax.
- Dunning — automatic retry on failed payments is essential. Stripe and Chargebee both do this well.
- Revenue recognition — if you have investors or compliance needs, consider Maxio or Zuora.
- Integration with your stack — make sure it works with your CRM (HubSpot, Salesforce), analytics (Amplitude, Stripe), and accounting (QuickBooks, Xero).
Bottom line:
For most people, Chargebee and Stripe Billing are the two names you’ll hear most consistently. Start with Stripe. If you outgrow it, move to Chargebee or Paddle, and only look at Zuora if you’re truly enterprise-scale.
Grokgrok-4.3read
Stripe Billing, Chargebee, Recurly, Paddle, and Zuora are among the most widely used subscription billing platforms, based on review volume, market mentions, customer examples, and analyst positioning in 2025–2026 sources.
These stand out for actual adoption across startups, mid-market SaaS, and enterprises rather than just marketing claims. There is no single “best” option—it depends on company size, pricing complexity (e.g., usage-based or hybrid), need for merchant-of-record (MoR) services, integrations, and whether you prioritize developer tools versus out-of-the-box finance features.
Here are the top recommendations with key details on who uses them and why:
-
Stripe Billing — Most popular for startups, PLG (product-led growth) SaaS, and developer-led teams already using Stripe Payments. It excels at subscriptions, usage-based/hybrid pricing, invoicing, and revenue recovery in one ecosystem. It is used by companies like Atlassian, Intercom, Anthropic, and Figma. It often ranks at or near the top in G2 ratings (around 4.4/5) with thousands of reviews and is frequently cited as the go-to for fast implementation and flexibility. Pricing is typically usage-based (e.g., ~0.5–0.7% of billing volume plus payment fees).
-
Chargebee — Strong mid-market favorite for SaaS companies needing billing flexibility, dunning, customer portals, analytics, and revenue recognition without full enterprise complexity. It supports 480+ scenarios and integrates with many gateways. It powers thousands of businesses (e.g., examples include Zapier and Typeform in related mentions) and consistently earns high G2 scores (~4.4/5). Pricing often starts free or low for smaller volumes then scales with usage (e.g., ~0.75%+).
-
Recurly — Popular for high-volume consumer/digital media/streaming subscriptions and churn reduction via intelligent dunning and retention tools. It offers enterprise-grade features and revenue recognition. It appears frequently in “best for” lists for subscription lifecycle management and has solid review presence. Pricing typically starts around $249/mo plus a percentage of volume.
-
Paddle — Favored by global/self-serve SaaS and digital product companies that want a Merchant of Record (handles taxes, compliance, and payments in 100+ countries). It reduces operational burden for international sales. It earns strong ease-of-use mentions and G2 ratings (~4.5/5 in some categories) and is commonly recommended alongside Stripe for certain use cases.
-
Zuora — Leading enterprise choice for complex, multi-entity, global billing with deep revenue recognition and CPQ capabilities. It is used by large organizations (e.g., Zoom, Siemens) and often ranks as a market leader or top performer in analyst reports for scale and sophistication. Pricing is custom/quote-based.
Other notable mentions that see real usage include Maxio (strong for B2B SaaS metrics + billing), Metronome (usage-heavy/AI monetization), and niche options like LemonSqueezy or Zoho Billing for simpler or ecosystem-specific needs.
Key selection factors from recent comparisons:
- Startups/early-stage or Stripe users → Stripe Billing.
- Mid-market SaaS with complex pricing → Chargebee or Maxio.
- High-volume consumer/media → Recurly.
- Global tax/compliance relief → Paddle.
- Large enterprises → Zuora or similar (e.g., Salesforce Revenue Cloud).
Review sites like G2 and Capterra, plus market reports, show these platforms dominating discussions and verified user feedback. Many sources note that choices often come down to existing tech stack (e.g., Stripe ecosystem vs. finance/ERP integration) and growth stage.
For the latest pricing, demos, or fit for your specific volume/pricing model, check vendor sites or review platforms directly, as offerings evolve.
Copilotbing_copilotread
Top subscription billing platforms include Whop, Stripe Billing, Chargebee, Recurly, and Zuora, each catering to different business needs from SMBs to enterprise SaaS.
- Whop
Whop is an all-in-one platform that blends subscription billing, product delivery, access control, and analytics. It’s ideal for small businesses, platforms, and marketplaces looking for a turnkey solution to manage memberships, subscriptions, and one-time products. Key Features:
Monthly, annual, or custom billing cycles Automated renewals and failed payment handling Built-in payment acceptance (cards, ACH, 100+ methods globally) Analytics, tax compliance, and dispute management No-code setup for products and subscriptions Pricing: Transaction-based fees: 2.7% + $0.30 per transaction.
- Stripe Billing
Stripe Billing suits SaaS and tech-savvy teams that need flexible, customizable subscription and usage-based billing. It integrates tightly with Stripe payment infrastructure, supporting trials, coupons, and global multi-currency payments. Key Features:
Subscription and usage-based billing Automated invoicing, proration, and dunning Extensive API customization and developer support Global tax calculation and compliance tools Pricing: Pay-as-you-go: 0.7% of billing volume + payment processing (2.9% + $0.30 per card transaction), with contract options for larger volumes.
- Chargebee
Chargebee is built for SaaS and digital product businesses, with strong automation for recurring billing, revenue recognition, and compliance. Key Features:
Recurring, usage-based, tiered, and hybrid billing Revenue recognition and compliance reporting Customer self-service portals and integrations with CRM/accounting Pricing: 0.8% of monthly billing (pay-as-you-go), gateway fees apply; enterprise pricing available.
- Recurly
Recurly focuses on revenue recovery and operational efficiency for growing companies. It is particularly useful for SaaS businesses that need automated payment retries and dunning. Key Features:
Recurring, tiered, and usage-based billing Smart dunning to reduce involuntary churn Analytics and integration with financial and CRM tools Pricing: Start at $249/month + 0.9% of billing volume; additional gateway fees apply.
- Zuora
Zuora targets enterprise organizations with complex subscription models. It handles recurring and usage-based billing, revenue recognition, global tax, and multi-entity support. Key Features:
Enterprise-grade billing and automation Configurable pricing plans (flat, tiered, usage, hybrid) Advanced reporting and dashboards Pricing: Custom quote; typically $50K+ per year depending on usage and features.
Additional Notable Platforms
Maxio (formerly Chargify): SaaS-focused with financial metrics dashboards Solidgate: Combines subscription billing with global payment orchestration for high-volume international businesses Zoho Billing: Affordable and flexible for SMBs needing recurring and usage-based billing OneBill and BillingPlatform: Enterprise-grade platforms for complex B2B billing scenarios.
Choosing the Right Software
Factors to consider:
Business size and complexity: SMBs may prefer Whop or Chargebee; enterprises may need Zuora or OneBill. Global operations: Stripe Billing and Solidgate support multiple currencies and payment methods. Technical resources: Stripe Billing requires developer support; Whop and Chargebee are more plug-and-play. Revenue management needs: Consider features like revenue recognition, churn analytics, and automated dunning for maximizing recurring revenue efficiency.
These platforms represent the most popular and effective subscription billing solutions for 2026, helping businesses automate billing, manage subscriptions, and optimize cash flow comprehensively.
Google AIgoogle_aioread
Google AI Modegoogle_ai_moderead
Choosing the right platform depends entirely on your business model, as there is no single absolute best subscription billing software. The top brands that tech, e-commerce, and SaaS companies actually use in 2026 fall into distinct categories based on company size and pricing complexity.
Here is a side-by-side comparison of the dominant platforms:
🚀 Best for Startups & Developer-First Teams
Stripe Billing: Core Use Case: Ideal for product-led growth (PLG) businesses that already use Stripe for basic payment processing. Standout Features: Provides powerful APIs for engineering teams to build custom checkout experiences. Trade-Offs: Can get expensive as volume scales; finance teams often outgrow its native audit and revenue recognition capabilities. Zoho Billing: Core Use Case: Highly cost-effective alternative for small-to-midsize businesses (SMBs). Standout Features: Out-of-the-box customer self-service portals, multi-currency invoicing, and tight native integration with the Zoho ecosystem. Trade-Offs: Less customizable for highly unique checkout logic or complex tech stacks compared to developer-first options.
📈 Best for Scaling Mid-Market SaaS & Digital Products
Chargebee: Core Use Case: The go-to middle ground for scaling SaaS businesses moving away from simple spreadsheets. Standout Features: Excellent full-lifecycle tracking including trials, proration adjustments, tier changes, and automated dunning. Trade-Offs: Historically built around rigid product catalogs; can require workarounds if your sales team frequently negotiates highly unique, custom B2B contracts. Paddle: Core Use Case: Businesses expanding globally that want to entirely outsource international compliance. Standout Features: Operates as a Merchant of Record (MoR), meaning Paddle legally takes on liability for global tax calculation, sales tax remittance, and local regulations. Trade-Offs: The MoR model carries a higher flat fee per transaction compared to standalone billing layers.
🏢 Best for Enterprises & Complex High-Volume Models
Recurly: Core Use Case: Large consumer platforms, streaming services, and media subscriptions with massive subscriber volumes. Standout Features: Renowned for its machine-learning payment retry logic, which drastically reduces passive customer churn from failed credit cards. Trade-Offs: Requires a steep learning curve and dedicated engineering resources for proper implementation. Zuora: Core Use Case: Massive enterprises requiring hybrid monetization strategies (combining flat fees, usage fees, and consumption pricing). Standout Features: Heavy, finance-driven architecture featuring advanced revenue recognition tools and deep integrations into enterprise ERP software like NetSuite. Trade-Offs: Long deployment timelines and high annual price entry point.
To recommend the best fit for your stack, could you let me know:
What type of product are you selling (e.g., B2B SaaS, mobile app, physical subscription boxes, or consulting services)? How complex is your pricing (e.g., a simple flat monthly fee, or usage-based pricing like charging per user or per gigabyte)? Where are your customers located (mostly domestic or selling to dozens of international countries)?
Answers are stored verbatim at capture and never edited. They are the AI models’ words, not CiteHawk’s, published as the primary source behind this record.
This is an immutable monthly record of the CiteHawk AI Index. Cite it as “CiteHawk AI Index, September 2026 · subscription billing software” with the URL of this page. The live ranking shows the current month; the methodology explains exactly how scores are computed.