No moat. Still in business.

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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

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Drills you on keyboard shortcuts for editors and work apps with spaced repetition until they become habit.

Since 2012

Free plan · Courses and learning · Individuals and families

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Translates websites, web apps and documents with machine and human translation, without managing translation files.

Since 2015

Website builders · Online sellers

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Sends your notes from books, podcasts and articles back by email or Telegram on a spaced repetition schedule so you remember them.

Since 2024

One-off payment · Notes and knowledge · Individuals and families

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Translates software interfaces with AI, syncs translation files through Git and lets teammates review wording.

Since 2024

Free trial · Developer tools · Software companies

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Translates and dubs videos and podcasts into 20 plus languages, keeping the speaker's voice and background audio.

Since 2023

Video and audio · Creators and writers

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A Mac app that runs AI actions like translate or rewrite on text you select in any app, via a shortcut.

Free plan · Focus and productivity · Individuals and families

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A browser extension that translates whole pages, selected text and subtitles, with an offline mode that keeps text on your device.

Free · Something else · Individuals and families

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Desktop app that plays and batch downloads podcasts, then transcribes and translates them offline into your notes.

Since 2026

One-off payment · Podcasting · Individuals and families

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A support email inbox for founders and small teams that summarises, tags and drafts replies from your own docs.

Since 2026

Subscription · Customer support · Freelancers

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Uses AI to translate app store screenshots into more than 30 languages while keeping the design intact, for app developers.

Since 2026

Marketing and social · Developers

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Translates documents with AI while keeping your glossaries, tone rules and past approved translations consistent.

Since 2026

Free plan · Documents and e-signature · Agencies

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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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Make your own flashcard decks and review them on a spaced repetition schedule in the browser.

Since 2015

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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Desktop data analysis app where you ask about your data in plain English and get Python code, charts and notebooks run on your computer.

Since 2017

Data and spreadsheets

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Note app for students that builds flashcards, quizzes and summaries from notes and PDFs with spaced repetition.

Since 2021

Free plan · Courses and learning · Individuals and families

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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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Record a product demo once and AI cuts the mistakes, polishes and translates it into a tutorial video.

Since 2024

Video and audio · Software companies

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Flashcard app that uses spaced repetition so learners review hard cards more often, with sync between devices.

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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Flashcard app for iPad and iPhone where students draw, type or add images to cards and review them with spaced repetition.

Since 2024

Courses and learning · Individuals and families

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A study app for students with spaced repetition flashcards, made from notes and PDFs, and scheduled around your calendar.

Free plan · Courses and learning · Individuals and families

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

Since 2023

Data and spreadsheets

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

Since 2024

Developer tools · Developers

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Mac app that fixes grammar, rewrites and translates selected text in any app, with your own AI actions and local models.

One-off payment · Something else · 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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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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Turns uploaded or linked audio and video into editable transcripts with speaker labels and subtitle exports.

Since 2026

Free plan · Video and audio · Individuals and families

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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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An iPad app that teaches children in grades K to 5 to spell new words using spaced repetition and a mock spelling bee.

Since 2026

Courses and learning · Individuals and families

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A Mac grammar checker that runs a local AI model offline and explains each correction across your apps.

Since 2025

Free plan · Focus and productivity · Individuals and families

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Turns your speech into tidy text in any app on Mac and phone, and edits or translates selected text by voice.

Since 2026

Free plan · Focus and productivity

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Upload a textbook and get chapter problems, feedback on your written answers and spaced recall reviews, for self-learners.

Since 2026

Free plan · Courses and learning · Individuals and families

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Suggests the rest of your sentence in most Mac and Windows apps, with the AI running on your own computer.

Since 2026

One-off payment · Focus and productivity · Individuals and families

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A Mac app that fixes English grammar and tone as you type in any app and explains each fix in your own language.

Since 2026

Free plan · Something else · Individuals and families

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Upload audio or video, or record live, and get an editable text transcript in over 120 languages.

Free trial · Video and audio

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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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Students upload slides or notes and get practice quizzes and spaced-repetition flashcards made from them.

Since 2025

Free plan · Courses and learning · Individuals and families

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A flashcard app that makes study cards from your PDFs, articles and photos and schedules reviews so you remember them.

Since 2026

Free plan · Courses and learning · Individuals and families

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Turns a WordPress or WooCommerce site into a multilingual one, with manual or machine translation of pages and products.

Website builders

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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

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Adds live captions and translated subtitles to any app or call on your computer or phone, in about 50 languages.

Free trial · Video and audio

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Save new words from what you read or watch, get AI definitions and examples, then review them with FSRS flashcards on Apple devices.

Since 2025

Free plan · Courses and learning · Individuals and families

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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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Pools GPUs and CPUs from many cloud providers and your own servers so developers can run large data jobs in one place.

Since 2026

Developer tools · Developers

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Connect Claude or ChatGPT so they turn what you read into flashcards, then review them on any device.

Since 2026

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

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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