Features

Everything Calcurate does

A multi-currency calculator with live rates, a mechanical keypad, swappable keycaps, classic displays and home screen widgets. Here is every feature, in detail.

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Add different currencies in one calculation

Tag each amount with its currency, mix them freely with + − × ÷ and %, and press equals for one answer in the currency you think in. Every conversion is shown, so you can check the working.

  • How does multi-currency maths work?
  • Tag before or after the number
  • Multiply, divide and use percentages

Multi-currency maths in detail →

Calcurate adding 120 USD, 85 SGD and 300 RMB to S$294.15
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Live exchange rates, with the source on screen

A currency calculator is only as good as its rates. Calcurate shows where its rates came from and, for live rates, when they were published, and it keeps working when your connection does not.

  • Where do Calcurate’s exchange rates come from?
  • How fresh are the rates?
  • Does it work offline?

Live exchange rates in detail →

Calcurate display showing LIVE 11 OCT rate status
7

A calculator keypad that feels mechanical

Every key in Calcurate is drawn as a real keycap and plays a real switch recording. It is a small thing you will notice every time you add up a bill.

  • What makes the keypad feel real?
  • Drawn like a real keycap
  • Prefer silence?

Mechanical keypad in detail →

Calcurate keypad with the Terminal keycap set
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Keycap Studio: six sets, one long press

Hold any key for 3 seconds. The cap starts to rock, pops off the switch and floats up. Swipe to browse, tap INSTALL, and watch the new set ripple across the board.

  • The six keycap sets
  • Profiles and materials, modelled

Keycap Studio in detail →

Calcurate Keycap Studio with a keycap floating above the keypad
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Currency widgets for your home screen

Check a rate at a glance, or type an amount on the large widget’s number pad and watch it convert on the home screen. No app launch needed.

  • Widget sizes
  • iPhone and iPad
  • Android

Home screen widgets in detail →

THB → SGD
1 THB =
S$0.03821 SGD = ฿26.21
USD → EUR
1 USD =
€0.89241 EUR = $1.1206
QUICK CONVERT · USD → SGD
$0
= S$0.00 SGD
123456789⇄0Clear

Illustration of the widget sizes. The real widgets use your phone's system style and differ slightly between iOS and Android.

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VFD, amber or LCD: pick your display

Three display styles inspired by classic calculators and hi-fi gear. Each sits behind glass with a fine mesh and glow. Tap the display key to switch.

  • The three tints
  • Why vacuum-fluorescent?

Display tints in detail →

Emerald VFD displayAmber phosphor displayClassic LCD display

Calcurate at a glance

PlatformsiPhone, iPad (App Store) and Android (Google Play)
Currencies15: USD, SGD, RMB (CNY), EUR, GBP, JPY, AUD, CAD, HKD, CHF, THB, MYR, KRW, INR, TWD
Quick currency keysUp to 3, chosen from the 15
Base currenciesSGD, USD, RMB, EUR, GBP, JPY, AUD, CAD, HKD, CHF, THB, MYR
Exchange ratesExchangeRate-API (daily), ECB reference rates fallback, 1-hour cache, bundled offline rates marked OFFLINE
Operators+ − × ÷, desk-calculator %, ±, C, AC, operator precedence
Keycap sets6: Calcurate, Terminal, Midnight Neon, Sakura, Ice Jelly, Carbon
Display tintsVFD (emerald), AMB (amber), LCD
WidgetsiOS: Currency (Small, Medium, Large). Android: Exchange Rate 2×2, Quick Convert 4×4
AccountNone needed. Settings stay on your device.

Download

Your next trip deserves a better calculator.

Mix currencies in one sum, see every conversion, and enjoy pressing the keys. Calcurate is on the App Store and Google Play.