Support

Questions, bug reports or suggestions about HexCalculator for iPhone and iPad? We're happy to help.

Contact

Email support@hexcalculator.app and include your device model and iOS version if you're reporting a problem — it makes fixes much faster. You can also reach the developer on GitHub.

Frequently asked questions

How do I switch between hex, decimal, octal and binary?

Use the base selector at the top of the calculator to choose the base you want to type in. The history keeps your recent operations in decimal, hex and binary.

What does the Signed/Unsigned button do?

It changes how values are interpreted: signed mode uses two's complement at the word size you choose — 8, 16, 32 or 64 bits — and unsigned mode covers the full range of that size (0 to 2⁶⁴−1 at 64 bits). See our two's complement guide for the details.

Where are the bitwise operations?

AND, OR, XOR and the shift operators are available in binary mode and in the landscape layout — rotate your device to see the extended keypad. NOT, NAND, NOR, the rotations (ROL, ROR) and MOD live in the operations strip above the keypad.

Can I paste values from code?

Yes. The paste parser accepts formats like 0xFF, FF, -0x1A, 0b1010, and values with spaces or underscores.

How do I clear the history?

Use the trash icon next to the display to clear stored operations.

Does the app collect any data?

No. All calculations happen on your device and nothing is collected or sent anywhere — see our privacy policy.

Download

HexCalculator is a free download for iPhone and iPad on the App Store (requires iOS 16.0 or later).