No moat. Still in business.

0

A Mac app for working with GitHub, covering notifications, pull request review, projects and fast keyboard search.

Free plan · Developer tools · Developers

0

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

0

Gives AI coding agents a way to phone you when they are stuck on a choice, and turns what you say back into text for them.

Developer tools · Developers

0

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

Subscription · Courses and learning · Individuals and families

0

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

Courses and learning · Individuals and families

0

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

0

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

0

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

0

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

Website builders

0

Mac menu bar app that alerts you when a Cursor, Codex or Claude Code session wants input, so you can reply or switch to it.

Since 2026

Free · Developer tools · Developers

0

Live voice lessons with an AI language tutor that corrects mistakes as you speak and remembers your past sessions.

Free trial · Courses and learning · Individuals and families

0

A hosted API for product teams to send app notifications over email, SMS, push, chat and an in app inbox.

Since 2020

Free plan · Transactional email · Developers

0

A web workspace where analysts write SQL over market prices, macro series and SEC filings, then chart the results without Python.

Subscription · Data and spreadsheets

0

A language learning app for 77 languages where every lesson ends with you saying the sentence aloud and getting feedback.

Free plan · Courses and learning · Individuals and families

0

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

0

Mac app that gathers questions from your terminal coding agents into one inbox so you can answer by key or voice.

Free · Developer tools · Developers

0

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

0

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

0

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

0

Runs regular speed tests on your connection and keeps a history so you can check your ISP delivers what it promised.

Free · Uptime and monitoring · Individuals and families

0

Spreadsheet that links to databases and files and lets AI write the formulas, Python and charts for you.

Since 2023

Data and spreadsheets

0

Mac app that pauses your shows and podcasts after each sentence to explain the translation, words and grammar.

Since 2026

Free plan · Courses and learning · Individuals and families

0

Send app events with one HTTP call, then search them and get them delivered to Slack, Discord, Telegram or webhooks.

Free plan · Developer tools · Developers

0

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

Subscription · Courses and learning · Individuals and families

0

Language learners listen to free public domain audiobooks while following highlighted text and optional translations.

Free · Courses and learning · Individuals and families

0

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

0

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

Free plan · Security and passwords

0

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

Since 2024

Courses and learning · Individuals and families

0

Phone app for learning a language by listening to native podcasts with synced transcripts and tap-to-translate words.

Since 2025

Subscription · Courses and learning · Individuals and families

0

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

0

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

0

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

0

Keeps pull request discussions in sync across GitHub, Slack and VS Code so dev teams and AI agents review code faster.

Free plan · Developer tools · Developers

0

One API and dashboard for sending product notifications by email, SMS, push, Slack and in-app inbox.

Since 2022

Subscription · Transactional email · Developers

0

A cloud workspace for creating, running and sharing marimo Python and SQL notebooks for data work

Since 2024

Developer tools · Developers

0

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

0

Deploys apps from a GitHub repo onto a server in your own cloud account, with HTTPS and redeploys on each push.

Free plan · Developer tools · Developers

0

A local desktop editor for writing language courses with lessons and self-marking exercises, plus a free app to study them.

Free · Courses and learning · Creators and writers

0

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

0

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

0

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

Courses and learning · Individuals and families

0

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

0

A kanban board that shows what each AI coding agent is doing and alerts you when one needs your input.

Free plan · Projects and tasks · Developers

0

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

0

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

0

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

Free plan · Website builders

0

Write notes and flashcards in markdown, then review them on a spaced repetition schedule.

Since 2019

Free plan · Courses and learning · Individuals and families

0

Build no-code dashboards from widgets that read from GitHub, Slack, Stripe, Google Workspace and your own APIs, then share by link.

Free plan · Data and spreadsheets