No moat. Still in business.

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An iPhone app that takes Japanese learners from beginner to fluent with one new sentence per flashcard and spaced review.

Since 2015

Courses and learning · Individuals and families

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Runs Claude Code and Codex jobs in parallel inside isolated containers, locally or on cloud runners, with memory shared across them.

Since 2018

Free plan · Developer tools · Developers

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Checks code written by AI coding agents for security flaws and team standards, in pull requests and inside the editor.

Free plan · Security and passwords · Developers

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Point any domain at any URL with automatic HTTPS, path rules and hit analytics, no server to run.

Free plan · Website builders

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A task tracker where software teams assign issues to AI coding agents and follow their progress next to human work.

Free trial · Projects and tasks · Developers

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Mac app that pulls builds, deploys, pull requests and errors into one small inbox and hands fixes to a coding agent.

Since 2026

Free plan · Uptime and monitoring · Developers

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Video player for language learners that shows two subtitle tracks at once, generates subtitles and translates them live.

Free · Video and audio · Individuals and families

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Shows how many watts each Mac app is drawing from the battery and how much runtime you would get back by closing it.

Free plan · Something else · Individuals and families

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Edit styles, layout and animations visually on your live site while your AI coding agent writes the changes into the source.

Since 2026

Design and images · Developers

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A browser extension that saves and highlights words you look up on web pages, then drills them with flashcards.

Since 2020

Free plan · Courses and learning · Individuals and families

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Ad-free app that teaches children aged 3 to 14 one of 19 languages through listening, speaking and reading along.

Since 2024

Free plan · Courses and learning · Individuals and families

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Teaches English, Spanish, French and other languages through song lyrics, with spaced repetition for new words.

Since 2024

Courses and learning · Individuals and families

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Mac editor where you write what to build, agents comment and explore options, then build the chosen one as a pull request.

Since 2024

Developer tools · Developers

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Runs coding agents in managed cloud machines for code review, bug fixes and background tasks, set up in YAML.

Since 2024

Developer tools · Developers

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A keyboard-driven Mac and Linux app for reviewing GitHub pull requests, with diffs, checks and threads loaded from a local cache.

Developer tools · Developers

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Flash card app for learners to keep their own word lists and practise them with spaced repetition on Apple devices.

Courses and learning · Individuals and families

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Makes isolated copies of a production Postgres database in seconds so coding agents can test changes safely.

Since 2024

Developer tools · Developers

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Mobile app where learners practise speaking a new language with AI characters and get pronunciation scores.

Since 2024

Courses and learning · Individuals and families

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Flashcard maker that schedules reviews by spaced repetition, with dictionaries and text to speech for language learners.

Since 2024

Free plan · Courses and learning · Individuals and families

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Browser extension that swaps sentences on the pages you read into the language you are learning, scaled to your level.

Since 2024

Subscription · Courses and learning · Individuals and families

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Helps intermediate language learners reach fluency through spoken chats with an AI tutor, corrections and daily articles.

Courses and learning · Individuals and families

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Listening drills that help language learners catch spoken numbers, phone numbers and clock times in over two dozen languages.

Courses and learning · Individuals and families

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Runs coding agents inside your team's own workflows, turning tickets into pull requests you review, on their cloud or yours.

Developer tools · Developers

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A Chrome extension that translates X and Reddit posts and quizzes you on new words, for people learning English.

Since 2026

Subscription · Courses and learning · Individuals and families

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A desktop workspace where developers run several AI coding agent CLIs in terminal panes and review their changes.

Since 2026

Subscription · Developer tools · Developers

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Saves your GitHub Issues as read only files in the repo so coding agents can open them without calling the API.

Since 2026

Free plan · Developer tools · Developers

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Copies chosen Jira projects and Confluence spaces into a local SQLite file so you can search offline and run SQL on your backlog.

Developer tools · Developers

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A free workspace for running AI coding agents in isolated Git worktrees on your laptop or a remote server.

Free · Developer tools · Developers

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Desktop app that keeps your coding agents, terminals and editors in saved rooms so you can watch, steer and resume them.

Since 2026

Developer tools · Developers

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Runs coding agents on your own machine with your model keys, re-running tests before each pull request and keeping lessons.

Since 2026

Free plan · Developer tools · Developers

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Gives coding agents a version-aware search index of open-source code, docs and package data through an API and MCP server.

Since 2025

Developer tools · Developers

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Learn Japanese or Korean by tapping words in YouTube videos, manga and books, with flashcards that track what you know.

Since 2025

Free plan · Courses and learning · Individuals and families

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Lets coding agents across a team claim files, message each other and hand off work so they stop clashing.

Since 2026

Free plan · Developer tools · Developers

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Mac app that puts projects, terminals, previews and coding agents on one zoomable canvas so you can watch them all.

Since 2026

Developer tools · Developers

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Version control for teams using coding agents, with lazy repo mounts, a branch per task and fast snapshots.

Since 2026

Developer tools · Developers

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Desktop app for developers to supervise several coding agents at once, each in a separate git worktree, with diffs reviewed inline.

Since 2026

Developer tools · Developers

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Gets and renews free Let's Encrypt SSL certificates on cPanel shared hosting without command line work.

Free plan · Security and passwords

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An API that serves open models and helper models for code edits, search and context trimming to teams building coding agents.

Since 2026

Subscription · Developer tools · Developers

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iPhone coding app that lets developers start AI agents on a GitHub repo, review plans and push commits without a laptop.

Since 2026

Developer tools · Developers

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Shows a team's coding agent sessions with token cost, time and skill use per message, so teams can learn from them.

Since 2026

Free plan · Developer tools · Developers

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Fixes the mixed content and insecure content warnings a WordPress site shows after it moves to HTTPS.

Website builders

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Cloud hosting that lets coding agents set up services, databases and storage, run previews and deploy to production.

Since 2025

Pay as you go · Developer tools · Developers

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A desktop workspace and agent-written wiki for people using Claude Code or Codex, keeping tasks, docs and decisions in one place.

Since 2025

Free plan · Developer tools · Developers

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Mac app that shows which Git worktrees your coding agents are using, which are merged, and cleans up finished ones.

Free · Developer tools · Developers

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A Mac app that lets developers chat with, approve and schedule their AI coding agents as if they were messaging contacts.

Since 2026

Free · Developer tools · Developers

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Runs coding agents in isolated virtual machines on your own computers or cloud accounts, joined on one private network.

Since 2026

Developer tools · Developers

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Run Claude, Codex, Gemini and other coding agents from desktop or phone with encrypted sync, on your existing subscriptions.

Free · Developer tools · Developers

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Short Spanish stories pitched at the words an A2 to B1 learner already knows, with unknown words brought back for review.

Since 2026

Free plan · Courses and learning · Individuals and families