Coolculator: Calc & Convert

RADLAB Online

In-app purchases

About this app

Coolculator is a calculator and unit converter that stays out of your way. The keypad works the moment you open it. No account, no setup, no network.

WHAT IT CONVERTS
Length, weight, temperature and currency. Currency uses daily reference rates published by the European Central Bank, so the number you see is a real rate rather than a stale guess. Rates are published on business days, so a weekend figure may be a day or two old. It is a reference rate, not what a bank or card will charge you.

SOLVE FROM A PHOTO (Premium)
Point your camera at a problem and Coolculator reads and solves it. It shows you what it read, so you can check the reading as well as the answer. If a photo is not legible it tells you instead of guessing.

SYNC ACROSS YOUR DEVICES
Create an account and your history, preferences and subscription follow you between Android, iPhone and the web. Everything else stays on your device.

PRIVACY, PLAINLY
There is no analytics and no advertising code in this app at all. We do not sell your data. Photos you send to the camera solver are not stored. You can delete your account from inside the app, and it takes effect immediately.

PREMIUM
Premium unlocks the camera solver for $4.99 per month, or $39.99 for a year. Subscriptions purchased here are billed by Google Play and managed in your Play account.

Questions or problems: [e-mail]. A person reads that inbox.

What’s new

What's new in 0.3.0:
- Delete your account from the Account tab.
- Signing out now clears your history from this device.
- Premium adds memory keys (MC, MR, M+, M-) and Tip & Bill Split, with your choice of currency.
- Tap the display to copy a result; tap a history entry to copy it.
- Backspace key and a quick unit swap in the converter.
- Sign in with Apple.
- The keypad fits on smaller screens.