Grid Calculator.

【Grid Calculator】 gathers everyday arithmetic, scientific functions, photo-based problem solving and conversion tools into one place, so a whole day's calculations stay in a single app.

Everyday Calculator

Addition, subtraction, multiplication, division and percentages, with the expression and the running result shown together so you can check each step as you type.

Scientific Functions

Trigonometry, logarithms, powers and roots are laid out on a dedicated keypad for coursework, engineering notes or any task that goes past basic arithmetic.

Photo Problem Solving

Point the camera at a written problem, adjust the four corners to frame it, and read a step-by-step walkthrough of how the answer is reached.

Currency Conversion

Convert between 40 currencies using rates fetched online, with the latest values kept on the device so figures remain available when the network drops.

Unit Conversion

Move between length, area, volume, weight, temperature, time and speed across 55 units, with the pair you use most remembered for next time.

History and Appearance

Calculations and conversions are grouped by date for quick lookup, while themes, backgrounds, key sounds and decimal precision can be adjusted to suit how you work.

Arithmetic, scientific work, photo solving and conversions in one organised place — download today and keep every calculation together.

Premium Account Pricing and Terms

$7.99/week*

$39.99/year*

*Prices are shown in US dollars. Actual charges may be converted into your local currency based on your country or region.

Payment will be charged to your iTunes account at confirmation of purchase.

Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period.

The account will be charged for renewal within 24 hours prior to the end of the current period, and the cost of the renewal will be provided. Subscriptions may be managed by the user. Auto-renewal may be turned off by going to the user's account settings after purchase.

Cancellation of the current subscription is not allowed during an active subscription period.

Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication.

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