Learn Binary: Bits & Hex
Number-base converter & CS
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Learn binary and hex the way it sticks — fast drills, a bit-by-bit climb, two's-complement and bitwise, and the nibble trick that makes hex click. Offline, no account.
Finally understand binary and hex — by doing, not memorising.
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. It's built around how you actually learn: a level climb, an ~80% mastery gate, and a three-minute daily habit.
WHAT'S INSIDE
- The drill — convert decimal ⇄ binary ⇄ hex, both directions. 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.
- A level climb — one level per bit, from the first switch up to the full byte (the 256 Club) and beyond. Clear a level test to unlock the next.
- Two's-complement — read and write signed bytes, with the sign-bit reveal.
- Bitwise ops — AND, OR and XOR, worked one column at a time.
- Byte Speed Run — an optional 60-second timed challenge once you've earned it.
- Daily goal + streak — a gentle habit, with a streak freeze so one missed day doesn't wipe your progress.
- Explore — scrub a number and watch decimal, binary and hex move together.
BUILT RIGHT
- Fully offline — no account, no sign-up, no tracking required.
- A clean, friendly light design in apricot and teal.
Remove ads with a single one-time purchase — it removes the interstitial ads, and it's the only thing we'll ever ask you to buy.
Ratings & Reviews
The developer, Tapricot, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Alyco Invest AS
- Size
- 27.6 MB
- Category
- Education
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Remove Ads $3.99
- Copyright
- © 2026 Alyco Invest AS