No moat. Still in business.

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

Scans code for quality issues, security flaws and AI coding policy breaks across a team's repositories, with automated review.

Since 2012

Free trial · 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

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

Free · Focus and productivity · Individuals and families

0

Collects traces, metrics and logs through OpenTelemetry for engineering teams, hosted or on your own servers.

Since 2022

Free trial · Uptime and monitoring · Developers

0

A 30 minute hiring test where engineering candidates review a realistic pull request and an AI agent answers their comments.

Since 2026

Hiring and recruiting · Software companies

0

Local Kanban board for handing tasks to coding agents like Claude Code and Codex, then reviewing plans and diffs before merging.

Since 2026

Free plan · Projects and tasks · Developers

0

Reviews each pull request for risk and security issues, checks releases and turns production errors into fix PRs.

Since 2026

Subscription · Security and passwords · Developers

0

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

0

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

Website builders

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

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

Deploys each labelled GitHub pull request as a live preview environment on your own Lightsail or Hetzner servers.

Since 2020

Developer tools · Developers

0

Runs Claude Code and Codex jobs in parallel inside isolated containers, locally or on cloud runners, with memory shared across them.

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

Lets AI teams version and test prompts, run evaluations and trace production agent calls outside the codebase.

Since 2023

Developer tools · Developers

0

A coding agent app that works out a spec with you first, then writes, checks and hands back code for approval.

Developer tools · Developers

0

Self-hosted platform for managing Git, Subversion and Mercurial repos with shared code review and permissions.

Free · Developer tools · Developers

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

Runs coding agents in managed cloud machines for code review, bug fixes and background tasks, set up in YAML.

Since 2024

Developer tools · Developers

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

Mac editor where you write what to build, agents comment and explore options, then build the chosen one as a pull request.

Since 2024

Developer tools · Developers

0

Keeps pull request discussions in sync across GitHub, Slack and VS Code so dev teams and AI agents review code faster.

Free plan · Developer tools · Developers

0

A coding environment for developers to run several AI agents at once and review the code changes they make.

Since 2023

Subscription · Developer tools · Developers

0

Application performance monitoring with logs, traces, metrics and alerts on OpenTelemetry, in the cloud or self-hosted.

Since 2022

Free plan · Uptime and monitoring · Developers

0

Observability built on OpenTelemetry for software teams, covering logs, traces, dashboards and alerts with cost control.

Since 2024

Free trial · Uptime and monitoring · Developers

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

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

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

A Mac app for comparing text, images and folders and resolving Git merge conflicts, for developers and designers.

Subscription · Developer tools · Developers

0

A Mac app for comparing Git commits and branches, tracing file history and resolving merge conflicts.

Since 2023

One-off payment · Developer tools · Developers

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

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

Writes pull request descriptions and team change summaries from your code diffs in GitHub and GitLab.

Free plan · Developer tools · Developers

0

Shared IDE and cloud where engineering teams run coding agents and review their plans and diffs together.

Since 2026

Subscription · Developer tools · Developers

0

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

0

Records program execution so developers can replay and step back through bugs in the IDE, CI and code review.

Since 2025

Free plan · Developer tools · Developers

0

An observability backend on ClickHouse that takes logs, metrics, traces and profiles and lets teams query them in Grafana.

Free plan · Uptime and monitoring · Developers

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

Stores the reasoning from AI coding chats with each git commit and posts it to pull requests for team review.

Since 2026

Free plan · Developer tools · Developers

0

Desktop workspace where developers run several coding agents side by side and review their changes in one place.

Since 2025

Subscription · Developer tools · Developers

0

Git hosting with issues, pull requests and code review that promises never to train AI on your code.

Since 2026

Free plan · Developer tools · Developers

0

Desktop app that runs several AI coding agents at once, each in its own git worktree, with tools to review their changes.

Since 2026

Free · Developer tools · Developers

0

Runs automations that triage production errors, watch deploys and answer support questions for software teams.

Since 2026

Uptime and monitoring · Developers

0

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

0

A desktop app for running coding agents in parallel Git worktrees, scheduling their work and reviewing the diffs.

Free · Developer tools · Developers

0

A Mac app that runs several AI coding agents side by side in separate clones and chains them to plan, build, review and test.

Free · Developer tools · Developers

0

Git hosting and code review with stacked pull requests, usable alone or kept in sync with GitHub.

Since 2026

Developer tools · Developers