No moat. Still in business.

0

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

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 Windows and Mac app that creates full original music tracks on your own computer for videos, podcasts and ads.

Since 2019

Subscription · Video and audio · Creators and writers

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

An app that sends files between nearby phones and computers over your WiFi, with no account or internet needed.

Free · Something else · Individuals and families

0

Phone app for storing accounts, policies and document photos that hands them to someone you pick if something happens to you.

Since 2024

Free plan · Security and passwords · Individuals and families

0

A free Mac and Windows dictation app: hold a key, speak, and the text is typed where your cursor sits, all offline.

Free · Focus and productivity · 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

Terminal app for homeowners to log maintenance schedules, projects, quotes and contractors in one local file.

Free · Home and car · Individuals and families

0

Lightweight note app for phone and desktop that syncs through your own storage backend and encrypts notes end to end.

Notes and knowledge · Individuals and families

0

A free desktop Kanban board that keeps your tasks offline on your own computer, for people organising personal work.

Since 2023

Free · Projects and tasks · Individuals and families

0

Phone app for site supervisors that turns a short spoken recap of the day into a signed daily report PDF, offline.

Free · Documents and e-signature · Construction

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

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

0

Teaches English, Spanish, French and other languages through song lyrics, with spaced repetition for new words.

Since 2024

Courses and learning · Individuals and families

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

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

0

Free offline Mac app to open, read and edit Markdown files, with a table of contents and AI review notes.

Free · Notes and knowledge · Individuals and families

0

A desktop password manager that keeps your logins in an encrypted offline file and fills them into apps for you.

Free · Security and passwords · Individuals and families

0

A Mac app that shrinks videos, images, GIFs and PDFs in batches offline, for creators short on disk space.

Since 2024

Design and images · Individuals and families

0

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

Since 2024

Courses and learning · Individuals and families

0

Free Mac app that runs Stable Diffusion offline to create and edit AI images on your own computer.

Free · Design and images · 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

A mobile app for recording site defects with photos offline and producing PDF or Excel snag and punch list reports for clients.

One-off payment · Projects and tasks · Trades and home services

0

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

0

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

Courses and learning · Individuals and families

0

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

0

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

0

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

Uptime and monitoring · Developers

0

Upload a schematic, netlist and parts list to get a report of wiring mistakes and design fixes before you order boards.

Since 2026

Something else

0

iPhone currency converter covering world currencies, metals and crypto, with custom rates and offline use.

Money and budgeting · Individuals and families

0

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

0

Edit, merge, split, compress and OCR PDF files inside your browser, with documents kept on your own device.

Since 2025

Free plan · Documents and e-signature

0

Runs versioned SQL and Python database migrations with dry runs, history checks and rollbacks, for Python teams.

Since 2026

Free plan · Developer tools · Developers

0

A Mac app that finds your files, photos and scans when you describe what is in them, working fully offline.

Since 2026

Free · Focus and productivity · Individuals and families

0

An Android app that blocks, groups or limits phone notifications using rules on app, text or time of day, all on the device.

Since 2026

Focus and productivity · Individuals and families

0

Lets Apple app developers view their sales, rankings, ad spend and reviews on iPhone, iPad or Mac, even without a connection.

Since 2026

One-off payment · Website analytics · Developers

0

Gets and renews free Let's Encrypt SSL certificates on cPanel shared hosting without command line work.

Free plan · Security and passwords

0

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

0

Point any domain at any URL with automatic HTTPS, path rules and hit analytics, no server to run.

Free plan · Website builders

0

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

Website builders

0

Open and edit KeePass password files in any browser or from a local HTML file, with passkey unlock and no server.

Since 2026

Free · Security and passwords · Individuals and families

0

Desktop app that turns your speech into text in any app, processing audio locally on Mac or Windows, paid for once.

Since 2026

One-off payment · Focus and productivity

0

iPhone CRM for estate agents to keep clients and listings, send buyers shortlists and see which homes they like.

Free plan · CRM and sales · Property and estate agents

0

Desktop app that transcribes voice recordings offline so podcasters and editors can cut clips by highlighting words.

Since 2026

Free · Video and audio · Creators and writers

0

Records meetings and lectures from the Mac notch and transcribes them on your device, saving plain files you keep.

Since 2026

Free trial · Notes and knowledge · Individuals and families

0

Splits songs into vocal, drum and bass stems, changes speed or key and converts formats, all inside your browser.

Since 2026

Free · Video and audio · Individuals and families

0

Voice dictation that runs on your own device on Mac, Windows and iPhone and tidies filler words and formatting.

Since 2026

Free plan · Focus and productivity