No moat. Still in business.

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A reading app for language learners that imports books, articles and videos, translates words and sends vocabulary to Anki.

Free · Courses and learning · Individuals and families

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Free self-hosted wiki that lets a team organise its documentation into shelves, books and pages.

Since 2022

Free · Notes and knowledge

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A Slack assistant that learns your company policies and answers staff questions, and helps onboard new hires.

Notes and knowledge

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Learn any of 75 or more languages from almost any starting language, including rare ones, with a school option too.

Free plan · Courses and learning · Individuals and families

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Graded Japanese stories at your JLPT level, with tap-to-define words, grammar notes, audio and flashcards.

Subscription · Courses and learning · Individuals and families

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A WordPress helpdesk plugin with support tickets, a knowledge base, a chatbot and AI help drafting replies.

Free plan · Customer support

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An app for practising spoken conversations in 10 languages with an AI partner, then chatting with native speakers with translation.

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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Keeps documentation in GitHub repos in step with the code and shares that context with teammates and AI coding agents.

Since 2026

Free plan · Developer tools · Developers

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Runs a team of coding agents like Claude Code and Codex in separate cloud sandboxes that you can manage together

Since 2025

Developer tools · Developers

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Write product documentation and user manuals in Markdown and publish them as a website, PDF or eBook.

Free plan · Website builders · Software companies

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Makes subtitles for your video and audio files so language learners can look up words and send them to Anki.

Since 2026

One-off payment · Courses and learning · Individuals and families

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Saves what you work out in AI chats as searchable documents that Claude, ChatGPT, Cursor and other MCP tools can read later.

Free plan · Notes and knowledge · Developers

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A VS Code based editor that runs several coding agents at once, each in its own Git worktree, so you can review their work.

Developer tools · Developers

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A wiki for SOPs, manuals and FAQs that sits in Microsoft Teams and answers staff questions from your own pages.

Since 2020

Subscription · Notes and knowledge

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Learn to read Arabic with alphabet lessons, graded stories and flashcards that schedule reviews around your memory.

Since 2026

Free plan · Courses and learning · Individuals and families

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Q&A site and knowledge base that teams can host themselves to collect answers to common questions.

Free · Customer support

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A desktop app for running coding agents in parallel Git worktrees, scheduling their work and reviewing the diffs.

Free · Developer tools · Developers

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Help desk you install on your own servers, with a shared ticket inbox, a self-service article area and multi-brand support.

Free trial · Customer support

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Help desk software for support teams, with a shared inbox, live chat, a knowledge base and a phone line in one place.

Customer support

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Build a chat agent from your own docs and FAQs, test it, then put it on your site or WhatsApp to answer customers.

Free plan · Customer support

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WordPress plugin for building a help center knowledge base, using AI to draft docs and answer visitor questions.

Free plan · Customer support · Software companies

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Shared docs workspace where people and AI agents write together, with branches and reviewable edits.

Free plan · Notes and knowledge · 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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Short Spanish stories pitched at the words an A2 to B1 learner already knows, with unknown words brought back for review.

Free plan · Courses and learning · Individuals and families

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A WordPress plugin for publishing help docs and FAQs, with an AI chatbot and search that answer customer questions.

Customer support

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Help desk that gathers email, chat, voice and social messages into one ticket queue, in the cloud or on your own servers.

Customer support

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Translates words and short phrases with examples and pronunciation, then saves them to a personal list for language learners.

Since 2026

Courses and learning · Individuals and families

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

Developer tools · Developers

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Mac app that runs Claude Code, Codex and other coding agents side by side in separate git worktrees, with a second agent reviewing diffs.

Since 2026

Free · Developer tools · Developers

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Saves videos, podcasts, PDFs and articles, summarises them, and lets you search and chat across what you saved.

Since 2022

Free plan · Notes and knowledge · Individuals and families

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A self-hosted forum with a shared library for clubs and communities who want discussions and know-how to stay findable.

Free · Communities and memberships

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An app for learning Japanese with an AI tutor, speaking roleplays, kanji, quizzes and a personal study plan.

Free plan · Courses and learning · Individuals and families

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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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A browser extension for Chinese learners that puts words from your level into English pages, with readings and meanings on hover.

Courses and learning · Individuals and families

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Mac app for running several coding agents at once, giving each its own issue, branch and git worktree.

Since 2026

Developer tools · Developers

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A support inbox where an AI agent drafts ticket replies and updates customer records, set up for Shopify stores.

Free trial · CRM and sales · Online sellers

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A free markdown notes app you run on your own server, with wikilinks, a graph view, diagrams, math and an MCP link for AI tools.

Free · Notes and knowledge · Individuals and families

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WordPress plugin for writing and organising product docs, wikis and help centres, with search and an AI chatbot.

Free plan · Customer support

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A desktop app for running several coding agents side by side, each in its own git worktree, with diffs and terminals.

Free · Developer tools · Developers

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Helpdesk plugin that runs support tickets, email piping and a knowledge base from a WordPress site.

Free plan · Customer support

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A help centre that spots product changes and drafts article updates for your support team to approve.

Free plan · Customer support · Software companies

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A free knowledge base you run on your own server to publish help articles sorted into nested categories.

Free · Customer support

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Help desk for SaaS companies with a shared inbox, knowledge base, AI replies and an in-app support widget.

Since 2024

Free plan · Customer support · Software companies

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Language learning app where you add the words you need and it builds practice sessions around them, in 20+ languages.

Since 2025

Free · Courses and learning · Individuals and families

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Open-source wiki software you host yourself so a team can write and share its internal documentation.

Free · Notes and knowledge

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Learn the 2,136 jouyou kanji by grade, with stroke order, components, readings and example words.

Courses and learning · Individuals and families