No moat. Still in business.

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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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Draw electronic schematics and run analog and digital circuit simulations in the browser, with no install needed.

Since 2012

Design and images · Schools and tutors

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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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Mac background app that lets you move or resize any window by holding a key and dragging anywhere on it.

Free · Focus and productivity · Individuals and families

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Keyboard launcher for Mac to find apps and files, expand text snippets, keep clipboard history and run custom workflows.

Free plan · Automation and integrations · Individuals and families

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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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A task manager that lays out your whole week on a timeline, works offline, and can be self-hosted.

Free · Projects and tasks · Individuals and families

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Save links to read later from any browser, then browse the pile with keyboard shortcuts, summaries and audio.

Since 2026

Notes and knowledge · Individuals and families

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Keeps one parts library across all the circuit boards in a project, with live supplier prices and lists of what to order.

Since 2026

Free · Inventory and stock · Manufacturing

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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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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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Browser extension for Hacker News readers that adds replying in place, unread comment tracking, keyboard shortcuts and other tweaks.

Free · Something else · Individuals and families

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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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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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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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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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Keeps a searchable history of everything you copy on a Mac, so you can sort past clips and paste them again with shortcuts.

Since 2024

Focus and productivity · Individuals and families

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Mac app that tiles windows into halves, thirds and quarters by dragging to screen edges or using shortcuts.

Focus and productivity · Individuals and families

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Helps students sort courses, tasks, class schedules, flashcards and files into colour-coded folders.

Free · Focus and productivity · Individuals and families

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Students turn class notes or a PDF into a practice test that marks itself and explains each question they got wrong.

Since 2024

Free plan · 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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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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Mac window manager where you drag on a grid to place windows, save layouts and give each one a shortcut.

Focus and productivity · Individuals and families

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A free Mac app that turns caps lock or another key into a combined modifier for your own shortcuts.

Free · Focus and productivity · Individuals and families

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Use an iPad or phone browser as a custom button panel for your Mac, so shortcuts, window moves and app switching are one tap.

Free · Focus and productivity · 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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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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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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Snap and resize Mac windows with keyboard shortcuts or by dragging to screen edges, with a paid Pro upgrade.

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

Since 2026

Free plan · Courses and learning · Individuals and families

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A language app that translates words offline, saves them to your own tagged word list and helps you review them with flashcards.

Since 2025

Courses and learning · Individuals and families

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Turns notes, PDFs or images into flashcards you can study online, share by link or print.

Since 2025

Free · Courses and learning · Individuals and families

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Mac menu-bar app that makes Caps Lock or another key a launcher: hold it, see your apps on a keyboard overlay, tap a letter to open one.

Since 2026

Focus and productivity · Individuals and families

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An AI agent that edits KiCad schematics and boards and reruns electrical and design rule checks until they pass.

Since 2026

Free · Developer tools

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Turns PDFs and notes into flashcards you can review and edit, then export to Anki, Mochi or SuperMemo.

Since 2026

Subscription · Courses and learning · Individuals and families

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A free Mac utility that makes Command Tab move between single windows, including ones on other Spaces and displays.

Free · Focus and productivity · Individuals and families

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A macOS utility that labels every open window with a letter so you can switch to one by typing it.

Since 2026

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

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A Mac menu bar app that keeps your clipboard history searchable by keyboard, with pinning and everything stored locally.

Since 2026

Free · Focus and productivity · Individuals and families

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A Mac window switcher that keeps Command-Tab limited to the current Space and lets you move and jump between Spaces.

Since 2026

Free · Focus and productivity · Individuals and families

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A keyboard-driven Mac photo viewer for flicking through folders, binning rejects and converting the ones you keep in bulk.

Free · Design and images · Individuals and families

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Hover over Chinese text in any Mac app to see pinyin, meanings and sentence breakdowns, and save words as flashcards.

Since 2026

Free plan · Courses and learning · Individuals and families

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A Mac window manager that puts window grids and moves between screens on hotkeys and rebuilds layouts when monitors change.

Free · Focus and productivity · Individuals and families

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

Since 2026

Free · Courses and learning · Individuals and families

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A reading and study app that lets you clip from books and papers, link the clips in mind maps and review them as cards.

Courses and learning · Individuals and families

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Paste a YouTube link or upload a transcript and get an Anki flashcard deck made by AI, ready to import.

Since 2025

Free plan · Courses and learning · Individuals and families

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A Chrome extension that lets you assign keys to buttons on any website and replay repeated clicks without code.

Since 2026

Free · Automation and integrations · Individuals and families

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Records every AI agent decision in a signed, tamper-evident log so teams can show regulators what their AI did under the EU AI Act.

Since 2026

Free plan · Developer tools · Developers