Binary & Hex · Trainer

Learn Binary

Master bits & hex.

Free Out now · Google Play iOS coming soon
Coming soon to the App Store GET IT ON Google Play

Out now on Google Play — the iOS version is coming to the App Store very soon.

Binary drill — tap the bit row to build the answer for a decimal number

Take a look

  • The nibble teaching block — 0x61 = 0110 0001 = 97 over colour-coded 4-bit nibbles
  • Home — your daily goal, streak, and the bit-by-bit level climb

Learn Binary turns number-base conversion into fast, satisfying drills. See a number, build the answer on a tappable bit row or a clean keypad, and get an instant verdict with the place-value breakdown behind it — by doing, not memorising.

What it does

  • Convert in every direction. Decimal ⇄ binary ⇄ hex, both ways. Tap the bits or type the digits, confirm, and see exactly why the answer is what it is.
  • The nibble block. The standout: see how 0x61 = 0110 0001 = 97, with hex sat over colour-coded 4-bit nibbles. This is the trick that makes hex click.
  • Climb bit by bit. One level per bit, from the first switch up to the full byte (the 256 Club) and beyond. Clear a short level test to unlock the next.
  • Go deeper. Two’s-complement signed bytes with a sign-bit reveal, and bitwise AND, OR and XOR worked one column at a time.
  • Keep the habit. A gentle daily goal and streak — with a streak freeze so one missed day doesn’t wipe your progress.

Built the Tapricot way

Offline-first, no account, no clutter. Free to play with an optional one-time purchase to remove ads. A clean, friendly light design in apricot and teal — and your progress stays on your device.