No moat. Still in business.

0

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

0

An API that turns addresses into coordinates and back, pulls places out of text, and serves maps for app builders.

Since 2012

Free plan · Developer tools · Developers

0

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

0

Mac app that opens a floating note on a shortcut so you can jot a thought, saved as a local markdown file.

Free · Notes and knowledge · Individuals and families

0

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

Free · Focus and productivity · Individuals and families

0

A password manager that stores your vault on your own devices and syncs them directly, with browser autofill.

Since 2023

Free · Security and passwords · Individuals and families

0

Records which apps and websites you use on your computer or phone so you can see where your time goes, stored locally.

Free · Time tracking · Individuals and families

0

A free desktop app for editing Hugo static websites on your own computer and publishing them through Git.

Since 2023

Free · Website builders · Creators and writers

0

Checks and autofills customer addresses in checkouts and forms, using UK postcode data and a lookup API.

Free trial · Online shops · Shops and retail

0

Keep track of your investments, net worth, spending and retirement plans in an open-source app that runs on your own devices.

Since 2024

Free plan · Money and budgeting · Individuals and families

0

Plans delivery and service routes from a spreadsheet of stops, handling time windows, vehicle capacity and shifts.

Since 2024

Free plan · Jobs and field service · Trades and home services

0

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

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

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

Map tiles, geocoding, search and routing APIs for developers who want location features without user tracking.

Since 2018

Free plan · Developer tools · Developers

0

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

0

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

0

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

0

Time tracker that runs in the browser and keeps entries on your device, with optional encrypted sync, for freelancers and staff.

Since 2023

Free · Time tracking · Individuals and families

0

A forward and reverse geocoding API built on open data, with flat monthly or one-time plans for developers.

One-off payment · Developer tools · Developers

0

Mobile apps and a browser extension that store your passwords and two-step login codes on your own device, with no account.

Security and passwords · Individuals and families

0

Message yourself notes, tasks and reminders in a chat-style app that works offline with optional encrypted sync.

Since 2024

Free · Notes and knowledge · Individuals and families

0

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

0

Keeps a local SQLite copy on each client in sync with your Postgres, MongoDB, MySQL or SQL Server backend for offline-first apps.

Since 2023

Free plan · Developer tools · Developers

0

A forward and reverse geocoding API with 2,500 free requests a day, offered as a cheaper option than Google geocoding.

Free plan · Developer tools · Developers

0

Note taking app in Markdown for Apple devices that stores each note as a plain file inside a folder of your choosing.

Free · Notes and knowledge · Individuals and families

0

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

0

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

Courses and learning · Individuals and families

0

Location APIs for developers covering map tiles, address lookup, route planning and place search, based on open data.

Developer tools · Developers

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

Keeps a local record of your screen, audio and apps so AI tools can search your past work and spot tasks to automate.

Free plan · Automation and integrations

0

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

0

A desktop app for sending and testing REST, GraphQL, gRPC and WebSocket requests, stored locally and synced through Git.

Since 2025

Subscription · Developer tools · Developers

0

A Mac clipboard manager that stores your copy history on the device, sorts it by type and can search text in screenshots.

Free · Focus and productivity · Individuals and families

0

A Mac app for writing and linking plain Markdown notes in your own folders, with boards, tables and optional AI help.

Since 2026

Free plan · Notes and knowledge · Individuals and families

0

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

0

Mac app that records and transcribes meetings on your machine, labels speakers and passes the live text to your AI for notes.

Since 2026

Free trial · Notes and knowledge

0

A notes app that auto-tags your notes, links related ideas, searches by meaning and writes summaries from them.

Since 2026

Free plan · Notes and knowledge · Individuals and families

0

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

Website builders

0

A private mood journal for iPhone and Mac that logs gratitude, sleep and screen time in a couple of minutes a day.

Since 2026

Health and habits · Individuals and families

0

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

0

A day planner for iPhone that lays tasks on a visual timeline and keeps your plans on your device, with an optional Pro tier.

Free plan · Focus and productivity · Individuals and families

0

Hosted directions, distance matrix and route optimisation APIs built on open engines, billed at a fixed monthly rate.

Since 2026

Free plan · Developer tools · Developers

0

Edit, annotate, redact, OCR and reorder PDF pages in your browser, with files kept on your own computer.

Since 2026

Documents and e-signature

0

Geocoding, map tile and routing APIs for developers who want a cheaper option than Google Maps for their sites and apps.

Free plan · Developer tools · Developers

0

A quick-starting desktop editor for plain Markdown files that you can also hand to coding agents for writing prompts.

Since 2026

Free plan · Notes and knowledge · Individuals and families

0

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

0

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