No moat. Still in business.

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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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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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Open-source admin panel you point at your app's database to edit records, run custom actions and build SQL reports.

Since 2021

Developer tools · Developers

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Send JSON events from your app with one request, then chart, query with SQL, set alerts and embed dashboards.

Since 2022

Free plan · Website analytics · Developers

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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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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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Design dashboards for e-ink screens around your home and keep them updated, run on your own server or Home Assistant.

Since 2026

Free · Home and car · Individuals and families

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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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Self-hosted tool to search, tail and chart logs and set alerts over data already in ClickHouse or VictoriaLogs.

Since 2025

Free · Uptime and monitoring · Developers

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Lets coding agents publish HTML reports and dashboards to a shareable link where people and agents can comment.

Documents and e-signature · Developers

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Desktop app where your own AI assistant builds and runs data workflows that join APIs, PDFs and spreadsheets on your machine.

Since 2024

Free · Automation and integrations

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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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Open-source business intelligence you host yourself, with a Malloy semantic layer, dashboards and an AI data analyst.

Since 2019

Free · Data and spreadsheets · Software companies

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Lets data teams build reports and dashboards from SQL and markdown, with a hosted option and an agent for questions.

Since 2021

Data and spreadsheets · Developers

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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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No-code database where teams store and share structured data, then add apps, automations and dashboards on top.

Free plan · Data and spreadsheets

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Mobile app where learners practise speaking a new language with AI characters and get pronunciation scores.

Since 2024

Courses and learning · Individuals and families

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Ad-free app that teaches children aged 3 to 14 one of 19 languages through listening, speaking and reading along.

Since 2024

Free plan · 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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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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Helps intermediate language learners reach fluency through spoken chats with an AI tutor, corrections and daily articles.

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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Listening drills that help language learners catch spoken numbers, phone numbers and clock times in over two dozen languages.

Courses and learning · Individuals and families

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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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A hosted version of Apache Superset for building dashboards, exploring data and embedding charts in your own apps.

Free plan · Data and spreadsheets

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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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Pulls survey answers, reviews and support chats into one place to chart them and code open text into themes.

Since 2023

Data and spreadsheets · Agencies

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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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Business intelligence tool built on dbt where data teams define metrics once and everyone builds charts, without paying per seat.

Subscription · Data and spreadsheets · Software companies

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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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Practise a new language by chatting with AI, tapping words to save them and reviewing them later with spaced repetition.

Since 2025

Free plan · Courses and learning · Individuals and families

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BI tool that answers data questions with charts inside ChatGPT, Claude and similar assistants, saved for the whole team to use.

Since 2026

Free plan · Data and spreadsheets

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Lets a business build its own analytics store, link the apps it uses, agree on key numbers and ask questions about them in plain English.

Since 2025

Data and spreadsheets

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Upload an Excel sheet and publish it as a searchable, sortable web table or chart you can link to or embed.

Since 2025

Free plan · Data and spreadsheets

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A browser extension for Chinese learners that puts words from your level into English pages, with readings and meanings on hover.

Since 2026

Courses and learning · Individuals and families

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A self-hosted web workspace for ClickHouse with a SQL editor, dashboards and cluster monitoring, for data teams.

Since 2026

Free plan · Developer tools · Developers

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Lets developers record counters and revenue figures in their own database, then chart them and set alerts in a hosted dashboard.

Since 2026

Subscription · Developer tools · Developers

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Builds charts and business dashboards from your data when you describe them in plain English, so you skip writing SQL.

Since 2025

Subscription · Data and spreadsheets

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Phone app for learning a language by listening to native podcasts with synced transcripts and tap-to-translate words.

Since 2025

Subscription · Courses and learning · 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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Graded Japanese stories at your JLPT level, with tap-to-define words, grammar notes, audio and flashcards.

Since 2026

Subscription · Courses and learning · Individuals and families

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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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Translates words and short phrases with examples and pronunciation, then saves them to a personal list for language learners.

Since 2026

Courses and learning · Individuals and families

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A desktop app to connect to 30+ databases, write or generate queries with your own AI keys, edit data and build dashboards.

Since 2026

Free trial · Developer tools · Developers

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A local desktop editor for writing language courses with lessons and self-marking exercises, plus a free app to study them.

Since 2026

Free · Courses and learning · Creators and writers

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Connects to your business data and builds charts and dashboards, or replies to data questions asked in plain language.

Since 2025

Free plan · Data and spreadsheets

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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

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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