Brain Bench Apps.

Independent app studio · Since 2026

Learn, practice, play. Give your brain a workout.

Brain Bench Apps makes free web apps you can add to your home screen and keep using offline — flashcards you build yourself, geography games with a daily puzzle, and a clock that makes you do the math. No accounts, no ads, and your cards, scores, and settings stay on your device.

Learning exercises

All of them are free, and all of them run in your browser.

Daily exercise

Mapdle

One hidden place. Five pins.

A new location every day. Drop up to five pins and each one is scored by how close you got, with the colors telling you how warm you are. After the reveal, a pop-up gives you a fact about the place, its coordinates, and somewhere to read more.

Play it at geographygym.com/mapdle

Play today's Mapdle

What you get

  • A fresh puzzle every day
  • Scored by distance
  • Streaks and milestone badges
  • Share your results
  • Places, parks, and waterways

  • Flashcard Flurry

    flashcardflurry.com

    Your cards. Your pace. Your device.

    Make cards one at a time, paste a list, or import a file — then study with classic flashcards, Matching Pairs, or Multiple Choice. It remembers the exact card and shuffle order you left off on.

    • 50+ ready-made decks
    • Three ways to study
    • Full backup and restore
    • No account, no cloud database
    Open Flashcard Flurry

  • Geography Gym

    geographygym.com

    Give your world knowledge a workout.

    Quick games that build real geographic intuition: states and capitals, countries, landmarks, waterways, national parks, and mountains. Pick the subjects you want to work on and drill just those.

    • U.S. states and world countries
    • Landmarks, waterways, and parks
    • Mountains and volcanoes
    • Study lists and quizzes
    Open Geography Gym

  • Analog Math Clock

    analogmathclock.com

    Practice math every time you check the time.

    An analog clock with equations where the numerals should be — 3+1 where the four goes, √64 where the eight goes. Pick a difficulty, refresh for a new set, or send in equations of your own.

    • Simple, advanced, and complex levels
    • Alarms and multiple clocks
    • World time zones
    • Binary and Maya numerals
    Open Analog Math Clock

How they work

Web apps, built to feel like real apps

  • Install without an app store

    In Safari on iPhone or iPad, tap Share, then Add to Home Screen. In Chrome on Android, choose Install app. The icon lands on your home screen like any other app.

  • Keep working offline

    The first visit and each update need a connection. After that, the app runs from your device — on a plane, on the subway, or anywhere the signal drops.

  • Nothing to sign up for

    No account, no password, and no paywall in front of the core of any app. Open the link and start.

  • Analytics, kept to a minimum

    Geography Gym and Mapdle count page visits through Umami, so it's clear which games people actually play. Flashcard Flurry and Analog Math Clock measure nothing at all.

  • Feedback goes straight to the source

    Every app links to its own FAQ, support page, or feedback form, and the suggestions that come in shape what gets built next.

About

How Brain Bench Apps started

Brain Bench Apps started with a stack of index cards. My wife was studying U.S. civics, and I was sure there had to be a better way to review flashcards than carrying them around. So I built Flashcard Flurry, so she could study from anywhere, offline, even in bed.

After that, inspiration turned up everywhere. In an office somewhere I saw an analog clock with equations printed where the numbers should be. Good idea, with one flaw: printed equations get solved once, and after that you're just reading a clock. So Analog Math Clock changes them — a new set whenever you want, at the difficulty you pick. Then came Geography Gym, a collection of quick games covering U.S. states and capitals, world cities, countries, landmarks, waterways, mountains, and national parks.

Geography Gym inspired Mapdle, a daily geography challenge that brings players back each day to test their knowledge, earn badges, and share results with friends and family. What began as one app for one person studying at the kitchen table keeps picking up new games, categories, and ideas.

— Joe

What's next

More to come

Mapdle is being prepared for release as its own iOS app, with web play staying on Geography Gym. The other apps are headed for the Apple and Android app stores as well, and new ones join the lineup as they're built.

Have an idea for one? Each app's feedback link reaches the same desk.