No moat. Still in business.
Software directory for those who don’t want to rebuild, own the updates, the bugs, the support.
- FlashTabs
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
- MLJAR Studio
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
- Appwrite
Open-source backend for app builders with auth, databases, storage, functions and hosting, run in the cloud or on your own servers.
Since 2021
Developer tools · Developers
- authentik
Self-hosted identity provider that gives an organisation single sign-on and login flows across its apps, with APIs and templates.
Security and passwords
- Folderly
Helps students sort courses, tasks, class schedules, flashcards and files into colour-coded folders.
Free · Focus and productivity · Individuals and families
- pbar.io
Lets developers share live progress of scripts and jobs through a link, via an API or a tqdm replacement.
Uptime and monitoring · Developers
- Grape
A note app for desktop and phone that records and transcribes, then answers questions using your own notes.
Since 2026
Notes and knowledge · Individuals and families
- WP Reset
Lets WordPress site builders take snapshots, roll back broken changes, clear demo data and reset a site in one click.
Subscription · Website builders · Agencies
- Nihongo Lessons
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
- RemNote
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
- Burning Vocabulary
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
- Revu
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
- Faable
Hosts apps from Git on European servers and adds user login through a hosted OAuth and OpenID Connect server.
Free plan · Security and passwords · Developers
- Quadratic
Spreadsheet that links to databases and files and lets AI write the formulas, Python and charts for you.
Since 2023
Data and spreadsheets
- Nova
Native Mac code editor for web and app developers, with Git, debugging, terminal and remote file publishing.
Free trial · Developer tools · Freelancers
- Back4app
Hosted app backend with database, user login and generated REST and GraphQL APIs, so developers skip running servers.
Developer tools · Developers
- Para Cloud
Managed hosting of the open-source Para backend with a JSON API, login, search and backups, priced per app.
Free plan · Developer tools · Developers
- Feyn
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
- PDF To Quiz
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
- Anki
Flashcard app that uses spaced repetition so learners review hard cards more often, with sync between devices.
Courses and learning · Individuals and families
- Authgear
Login, passkeys, SMS and WhatsApp codes, SSO and user management for apps, run in their cloud or on your servers.
Free plan · Security and passwords · Developers
- Memozora
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
- Nile
Serverless Postgres that keeps each customer's data and vector embeddings in its own virtual database, for teams building B2B SaaS.
Developer tools · Developers
- CodeRunner
A lightweight Mac code editor that runs and debugs code in dozens of languages, for programmers who want quick scripts.
One-off payment · Developer tools · Developers
- Hanabira
Learn Japanese or Korean by tapping words in YouTube videos, manga and books, with flashcards that track what you know.
Since 2025
Free plan · Courses and learning · Individuals and families
- DBLift
Runs versioned SQL and Python database migrations with dry runs, history checks and rollbacks, for Python teams.
Since 2026
Free plan · Developer tools · Developers
- ReadVocab
Learn English words from books you are reading, with ready-made flashcards, quizzes and a word bank.
Since 2025
Free plan · Courses and learning · Individuals and families
- Loudwalk
Reads your Anki flashcards aloud through headphones and grades your spoken answers, with an AI tutor for follow-up questions.
Since 2026
Free plan · Courses and learning · Individuals and families
- Janus
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
- Magic Login Pro
Lets WordPress users sign in with an emailed one-time link instead of typing a password.
Security and passwords
- Hanko
Open-source login service with passkeys, 2FA and SSO for app makers, run in Hanko's cloud or on your own servers.
Since 2025
Free plan · Security and passwords · Developers
- NewWord
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
- Coupling
A language app where a partner or friend fills in words, audio and sentences for you to study, on iPhone and Android.
Since 2025
Courses and learning · Individuals and families
- Overcast
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
- Space
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
- Cuiz AI
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
- YouTube2Anki
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
- Mobore
Ties logs and traces from iOS and Android apps to backend services so app teams can trace a user problem to its cause.
Since 2025
Uptime and monitoring · Developers
- AbjadPro
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
- WeaveScope
Tracing and monitoring for AI agents written in Elixir, showing which model or tool call failed, slowed down or cost too much.
Since 2026
Free plan · Uptime and monitoring · Developers
- Earnote
Records lectures and meetings on Mac or iPhone, transcribes them locally and turns them into notes, flashcards and study sheets.
Free · Notes and knowledge · Individuals and families
- ByteAsk
Terminal AI agent that edits C and C++ code, then runs your build, tests and sanitizers on each change before you see the diff.
Since 2026
Free plan · Developer tools · Developers
- Card Snap
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
- Multiplayer
Captures full stack session data from production and passes it to coding agents like Claude Code so they can fix bugs.
Since 2025
Developer tools · Developers
- recall
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
- AIR Blackbox
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
- RabbitGUI
A desktop app for developers to inspect RabbitMQ queues, spy on live traffic and replay dead-lettered messages.
Since 2025
One-off payment · Developer tools · Developers
- Unihongo
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