Expo

Ninety-Nine — Presents nine simple-looking physical challenges, such as drawing a perfect circle or stopping a timer, and scores each attempt out of 100.

Aplomo — Lets users practice spoken answers against an AI that pushes back in real time and gives feedback on filler words, pace and clarity.

Orbit Hero — Lets coaches assign home practice drills to students and tracks completion, streaks and XP for parents and coaches.

AfterLaunch — Generates short-form video drafts for a product from its URL and schedules approved ones for publishing.

3am Archive — Lets users write short nightly journal entries that unlock chapters of a serialized noir mystery story.

InfraSim — Lets players build cloud system designs from load balancers, caches, databases and queues, then simulates traffic to reveal failures.

Dana — Shares pet care schedules across a household, tracking feeding, walks, medications, vaccines and reminders with AI-assisted food checks and health triage.

Ittekimasu — Combines Japanese study with spaced repetition and a relocation checklist for moving to Japan.

RouteMap — Draws all of a user's recorded Strava routes on a single world map with favourites, hidden routes and collections.

FaithRank — Runs a religion trivia quiz where players declare a faith and their scores count toward that faith's team in weekly tournaments.

Gearlift — Builds structured workouts from the equipment a user has and guides them through each set on Android.

samepageapp — Delivers a daily question that friends answer, with everyone's answers hidden until you submit your own.

TV-Top Games — Casts board games to a TV while players join from their phones via QR code, keeping hands private and enforcing game rules.

MicroGrind — Builds a concept map from a student's documents, generates source-grounded lessons, flashcards and questions, and schedules short study sessions based on per-concept progress.

ProgramU — Generates custom subliminal, hypnosis, meditation and EFT tapping audio sessions from user-written goals, with an AI voice teacher and a 90-day program.

rnblocks — Provides a open source registry of copy-paste React Native and Expo UI components and screens.

Monad Design — Lets developers select or annotate a running iOS or Expo app's UI so coding agents can edit the source, rebuild, and compare real implementation variants.

Monad Design — Lets coding agents edit source code of a running iOS app by annotating UI in Simulator and comparing source-backed design variants.

Bundle Drop — Delivers over-the-air updates to React Native and Expo apps via an open source npm module and hosted service.

chessboard-native — Provides a controlled, declarative chessboard component with animations and gestures for React Native apps.

Basalt — Lets developers visually drag, resize and recolor React Native elements in a live preview and writes those changes into source files.

Basalt — Lets developers visually edit React Native and Expo app components inside VS Code and Cursor, similar to Figma.

Metro Remote — Connects AI agents to a real iPhone so they can build, run, debug, and test React Native apps remotely.

Wherd — Provides an SDK for in-app user feedback threads, announcements, changelogs, and feature voting in web React and React Native apps.

PaywallReady — Provides a drop-in Expo and RevenueCat code kit for adding subscription paywalls, restore purchases, and premium feature gating to mobile apps.

NodeCleaner — Finds and removes Node.js, React Native, and Expo development caches and build artifacts on macOS through an interactive terminal interface.

Otalan — Delivers over-the-air web-layer updates to Expo and Capacitor mobile apps with staged rollouts, rollback, and release history.

Spent over a year on a mobile… — Builds, signs, uploads and ships iOS and Android apps to the app stores with a single command.