No moat. Still in business.
Software directory for those who don’t want to rebuild, own the updates, the bugs, the support.
- Lago
Open-source billing engine that meters usage, runs subscription and hybrid plans, and issues invoices for software firms.
Since 2021
Free · Invoicing and billing · Software companies
- Checkout Page
Build hosted or embedded checkout pages to sell products, subscriptions, tickets and services through your own Stripe account.
Since 2018
Free plan · Payments and checkout · Online sellers
- Sublium
A WooCommerce plugin that lets shops sell subscriptions, repeat deliveries and instalment plans, with dunning and cancellation flows.
Payments and checkout · Online sellers
- XMR Checkout
Lets merchants invoice in Monero and have customers pay straight into the merchant's own wallet, with APIs and webhooks.
Since 2026
Payments and checkout · Shops and retail
- Meteroid
Billing for SaaS and AI companies that handles subscriptions, usage metering, quotes and invoices.
Free plan · Invoicing and billing · Software companies
- WPSubscription
Adds recurring billing, trials, split payments and subscription boxes to WooCommerce stores.
Free plan · Payments and checkout · Online sellers
- Polar
Takes payments, subscriptions and usage billing for software makers and handles sales tax worldwide as merchant of record.
Payments and checkout · Developers
- SureCart
WordPress plugin for selling physical goods, digital downloads and subscriptions with built in checkout and payment gateways.
Payments and checkout · Online sellers
- Dodo Payments
Takes payments as merchant of record for software and AI products, with subscriptions, usage billing and tax handled.
Since 2025
Invoicing and billing · Developers
- Recurio
A WooCommerce plugin for selling subscriptions, taking recurring payments and tracking renewals for online stores.
Free plan · Payments and checkout · Online sellers
- Kelviq
Acts as merchant of record for software companies, handling subscriptions, usage billing, feature limits and global sales tax.
Since 2026
Pay as you go · Invoicing and billing · Software companies
- Autumn
Adds usage limits, credits, plans and spend controls on top of Stripe so AI startups can change pricing without rebuilding billing.
Free plan · Payments and checkout · Developers
- ArraySubs
WooCommerce plugin for selling subscriptions and memberships, with renewals, members only content and cancellation save offers.
Free plan · Payments and checkout · Online sellers
- moneydevkit
Adds checkout, subscriptions and webhooks to apps, with docs an AI coder can follow and wallets AI agents can spend from.
Since 2025
Payments and checkout · Developers
- SePay
Watches your Vietnamese bank account and confirms customer transfer payments automatically, so shops skip gateway fees.
Payments and checkout · Shops and retail