CalcBoard - Multi Calculator
Side-by-Side Calculations
About
Perform multiple calculations simultaneously on one screen, compare prices side-by-side, and access various modes like scientific and programmer. This ad-free utility offers precise results and stores your data locally.
What's New in CalcBoard
1.5.0
August 16, 2026
- Reliability fixes: a hardened expression engine and correct restore of your panels, variables, and layout on relaunch. - Now requires iOS 16 or later. - Rate CalcBoard without leaving the app — a single optional prompt after you've used it a while. Never a nag.
MoreSubscriptions & In-App Purchases
$2.99
CalcBoard Premium
All modes, up to 8 panels, history, themes & mores
Developer apps
FAQ
Does CalcBoard have ads?
No, CalcBoard is designed to be completely ad-free. The description explicitly states 'NO ADS. NO SUBSCRIPTIONS. EVER.' and that your data stays on your device without ad SDKs.
How much does CalcBoard cost?
CalcBoard is free to start, offering two calculator panels and basic mode permanently. Premium features are unlocked with a single one-time purchase, with no subscriptions or recurring charges.
What calculator modes does CalcBoard offer?
CalcBoard offers four powerful modes: Basic for everyday math, Scientific for advanced functions, Programmer for hexadecimal and binary operations, and a Unit Converter with 79 units across 10 categories.
Can I compare prices side-by-side with CalcBoard?
Yes, CalcBoard allows you to open two calculators on the same screen to compare unit prices, discounts, or totals without switching back and forth, making it easy to find the best deals.
How many calculations can I run at once with CalcBoard?
You can run up to eight independent calculator panels simultaneously on one screen, allowing you to manage multiple calculations for different scenarios or comparisons.
Is CalcBoard available on iPad?
Yes, CalcBoard is designed for everyone and offers full iPad support, including Split View and compatibility with hardware keyboards.
How often is CalcBoard updated?
The latest version is 1.5.0, released on August 16, 2026. While specific update frequency isn't detailed, the app has seen regular updates since its release on March 3, 2026.
What makes CalcBoard's results precise?
CalcBoard uses arbitrary-precision decimal arithmetic, which means it avoids floating-point rounding errors. For example, it accurately calculates 0.1 + 0.2 = 0.3.
