No moat. Still in business.
Software directory for those who don’t want to rebuild, own the updates, the bugs, the support.
- Sendwithus
Lets teams edit, test and send transactional email templates without code deploys, with A/B tests and analytics.
Since 2014
Subscription · Transactional email · Software companies
- Assertible
Runs automated tests against your APIs and websites after each deploy and on a schedule, with alerts on failure.
Since 2016
Uptime and monitoring · Developers
- Audienceful
Email marketing app for sending newsletters, campaigns and automated sequences, built for teams that write together.
Since 2018
Free plan · Email marketing · Online sellers
- Inspectlet
Records visitor sessions on your site and uses AI to point out errors, rage clicks and drop-offs, alongside heatmaps.
Free plan · Website analytics
- ConfigCat
Turn app features on or off and roll them out to chosen users without redeploying, with unlimited team seats.
Free plan · Developer tools · Developers
- Enhanci
Build and A/B test pricing tables for your website without code, with Stripe revenue insights.
Since 2024
Free plan · Website builders · Online sellers
- Qonversion
Handles in-app subscriptions for mobile apps, with a paywall builder, price tests and revenue reports for app teams.
Free plan · Payments and checkout · Developers
- RevDock
Add one script to your site for widgets like local pricing, exit offers and social proof to lift sales.
Since 2025
One-off payment · Marketing and social · Online sellers
- Joystick
Lets app and game developers change settings and run A/B tests remotely, without shipping a new build or waiting for store review.
Since 2024
Developer tools · Developers
- Callosum
Desktop app for designing, calling and documenting APIs that keeps an OpenAPI spec in sync, offline with no login.
Since 2024
Free trial · Developer tools · Developers
- Unleash
Feature flag service that lets software teams roll out, test and switch off features in production without redeploying.
Subscription · Developer tools · Developers
- GrowthBook
Feature flags and A/B tests that read results from your own data warehouse, for software product teams.
Free plan · Website analytics · Software companies
- InstantCLI
Builds a command line tool for your API from its docs, with binaries, install scripts and updates, so AI agents can use it.
Since 2026
Developer tools · Developers
- Beeceptor
Spin up hosted mock servers from OpenAPI, SOAP, GraphQL or gRPC specs so teams can test without the real backend.
Since 2025
Free plan · Developer tools · Developers
- ReferralLoop
Build a pre-launch waitlist page where signups earn rewards for referring friends, with emails and A/B tests.
Since 2025
Free plan · Marketing and social · Online sellers
- Flagsmith
Feature flags and remote config so software teams can release to user segments, run tests and switch features off fast.
Free plan · Developer tools · Developers
- SpecShield
Compares your OpenAPI spec on each pull request and blocks merges that would break the services using your API.
Since 2026
Free plan · Developer tools · Developers
- Pitch31
Upload an OpenAPI or Postman file to get a chat agent that lets your users run your software's actions in plain language.
Since 2025
Free plan · Developer tools · Software companies
- Octri
Generates API docs, client libraries in ten languages and an MCP server from your OpenAPI file, plus usage monitoring, for API providers.
Since 2026
Free plan · Developer tools · Developers
- Routebase
Keeps API specs, mock servers, tests and published docs in step from a single spec, for software teams.
Since 2026
Free plan · Developer tools · Developers
- DollarDeploy
Deploys apps from a GitHub repo onto a server in your own cloud account, with HTTPS and redeploys on each push.
Since 2026
Free plan · Developer tools · Developers
- Scalar
Turns an OpenAPI file into hosted API docs, client SDKs and an MCP server for software companies.
Developer tools · Developers
- ronda
Lets marketing and design staff describe web app changes in plain English and get them as GitHub pull requests for engineers to review.
Since 2026
Free plan · Developer tools · Software companies
- FeatBit
Feature flags for software teams to roll out changes to chosen users, watch error rates and roll back bad releases.
Free plan · Developer tools · Developers
- PageDuel
Site analytics with split testing that shows which campaign, page or test version led to each sale, for online businesses.
Since 2026
Subscription · Website analytics
- Treblle
Watches live API traffic so engineering teams can see usage, catch problems and enforce API standards.
Uptime and monitoring · Developers
- Appliku
Sets up and manages your own cloud server to deploy Django apps, with a dashboard, CLI and API.
Since 2021
Free plan · Developer tools · Developers
- Tggl
Feature flags, gradual rollouts and A/B tests so developers ship behind toggles and product teams control releases.
Since 2023
Free plan · Developer tools · Developers
- Weco AI Functions
Turns a one-line description into a live AI API endpoint with typed output, model comparison and usage logs.
Since 2025
Free plan · Developer tools · Developers
- GO Feature Flag
An open-source feature flag service built on OpenFeature for gradual rollouts, A/B tests and quick rollbacks in your apps.
Free · Developer tools · Developers