Comparison

ClearKey Calc vs Calculator+ Simple Math

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

ClearKey Calc

Features
Read full description

ClearKey Calc is a user - friendly calculator app. It features a simple and intuitive interface. With functions like basic arithmetic operations, and additional buttons for tip, tax calculations. It also has a lock function for privacy. Vibration and sound options add to the user experience.

About

Calculator+ Simple Math

Features
Read full description

Calculator+ is a clean, fast calculator for everyday math. It is built to feel simple, trustworthy, and lightweight, with no account, no ads, and no cloud dependency. Use it for quick totals, homework checks, shopping math, percentages, decimals, and more capable calculations when you need them. Calculator+ keeps the focus on the calculation, with a modern interface that works well in light or dark mode. Features: - Basic arithmetic: addition, subtraction, multiplication, and division - Correct operator precedence for natural expressions - Parentheses, decimals, percent, sign toggle, and backspace - Local calculation history you can reuse - Scientific mode with sin, cos, tan, square root, powers, logarithms, pi, and e - Light, dark, and system appearance modes - Haptic feedback setting - Local-first design with no account required Calculator+ is designed as a premium everyday utility: calm, readable, responsive, and private by default.

Screenshots

ClearKey Calc4 screens
Calculator+ Simple Math4 screens

Verdict

The call

The clearest difference is iOS requirement: Calculator+ Simple Math at 13.0 against ClearKey Calc's 15.1. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference ยท 4 level
ClearKey Calc versus Calculator+ Simple Math: the parameters behind the verdict, then further details
ParameterClearKey CalcCalculator+ Simple Math
PriceFreeFree
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.113.0 โ€” better
Further details โ€” not scored
Size30 MB19 MB
Age rating4+4+
Developer้น้ฃž ้™ˆSpace 64 LLC

In-app purchases

None

ClearKey Calc

No in-app purchases

None

Calculator+ Simple Math

No in-app purchases

Questions

Is ClearKey Calc free?
ClearKey Calc is free to download, with no in-app purchases.
Is Calculator+ Simple Math free?
Calculator+ Simple Math is free to download, with no in-app purchases.
Do ClearKey Calc or Calculator+ Simple Math have ads?
Neither ClearKey Calc nor Calculator+ Simple Math shows ads.

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