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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Adds AI translations to your app's language files on each pull request, so the team can review and edit them before merge.

Free trial · Developer tools · Developers

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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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Your coding agent records narrated walkthrough videos of your app for help centres and docs, with editable voices and languages.

Since 2026

Video and audio · Developers

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A browser editor for app developers to frame, caption and translate store screenshots and export them in the right sizes.

Since 2026

Free plan · Design and images · Developers

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Build multi-step forms and surveys from short code or markup, with a WordPress plugin and Google Sheets saving.

Since 2025

Free plan · Forms and surveys · 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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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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Lets developers share live progress of scripts and jobs through a link, via an API or a tqdm replacement.

Uptime and monitoring · Developers

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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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A hosted headless CMS that lets editors manage structured content and developers pull it in through a GraphQL API.

Since 2017

Subscription · Website builders · Agencies

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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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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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A localization platform that keeps product wording consistent across languages using glossaries, translation memory and an AI translator.

Developer tools · Developers

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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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A Tableau extension that translates dashboards into many languages, with glossaries and per-user language choice.

Since 2024

Data and spreadsheets

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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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Manage software translations with machine translation and team review, either hosted for you or on your own servers.

Free plan · Developer tools · Developers

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An online place to translate software strings with your team, AI or hired translators, connected through an API and plugins.

Developer tools · Developers

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A web translation editor for software teams that syncs app strings, auto-translates and hosts translation files on a CDN.

Free trial · Developer tools · Developers

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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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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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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 simple translation tool for app, site and game text, with AI translation, team roles and Git and Figma syncing.

Since 2025

Developer tools · Developers

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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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Translates a website into 60+ languages with one DNS record and adds hreflang tags so each version ranks in Google.

Since 2026

Free plan · Website builders

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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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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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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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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

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An iPhone app that builds a short-lesson course on any subject you choose, with reviews, streaks and an AI tutor.

Since 2026

Courses and learning · Individuals and families

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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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Piano practice app that listens over MIDI as you play sheet music and schedules bar by bar memory reviews so pieces stick.

Since 2026

Subscription · Courses and learning · Individuals and families

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Keep your app's translation strings in one place, auto-translate them with LLMs and export files for any platform through an API.

Free plan · Developer tools · Developers

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Translates a website or online store into over 110 languages with AI and keeps translations and SEO tags in sync.

Free plan · Website builders