No moat. Still in business.
Software directory for those who don’t want to rebuild, own the updates, the bugs, the support.
- QueryStorm
Excel add-in for querying tables with SQL, scripting workbooks in C# and building custom Excel functions.
Since 2016
Free plan · Data and spreadsheets · Developers
- 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
- 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
- Swell
An ecommerce platform with an API for selling products and subscriptions, with custom storefronts and checkout, for online brands.
Since 2021
Free trial · Online shops · Shops and retail
- SSL Insecure Content Fixer
Fixes the mixed content and insecure content warnings a WordPress site shows after it moves to HTTPS.
Website builders
- Auto-Install Free SSL
Gets and renews free Let's Encrypt SSL certificates on cPanel shared hosting without command line work.
Free plan · Security and passwords
- Content Control
Choose who can see each page on a WordPress site, with teasers, redirects and paywalls for subscription content.
Free plan · Communities and memberships · Creators and writers
- Quadratic
Spreadsheet that links to databases and files and lets AI write the formulas, Python and charts for you.
Since 2023
Data and spreadsheets
- ManiDesk
A web workspace where analysts write SQL over market prices, macro series and SEC filings, then chart the results without Python.
Since 2026
Subscription · Data and spreadsheets
- Kelviq
Acts as merchant of record for software companies, handling subscriptions, usage billing, feature limits and global sales tax.
Pay as you go · Invoicing and billing · Software companies
- Sublium
A WooCommerce plugin that lets shops sell subscriptions, repeat deliveries and instalment plans, with dunning and cancellation flows.
Payments and checkout · Online sellers
- 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
- Recurio
A WooCommerce plugin for selling subscriptions, taking recurring payments and tracking renewals for online stores.
Free plan · Payments and checkout · Online sellers
- 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
- Paymenter
Self-hosted billing for web and game hosting firms that automates subscriptions and server setup, with a WHMCS migration tool.
Free · Invoicing and billing · Software companies
- Polar
Takes payments, subscriptions and usage billing for software makers and handles sales tax worldwide as merchant of record.
Payments and checkout · Developers
- WP EasyCart
WordPress store plugin for selling physical items, digital files and subscriptions, taking payment by Stripe, Square or PayPal.
Free plan · Online shops · Restaurants and cafés
- moneydevkit
Adds checkout, subscriptions and webhooks to apps, with docs an AI coder can follow and wallets AI agents can spend from.
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