Comparison

CALCOs vs Gradation Calculator

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

Head to head
About

CALCOs

Features
Read full description

Calco is a fast, simple, and reliable calculator designed for those who need clear results without distractions. Its clean interface makes it easy to perform basic math operations in seconds, whether for personal, school, or work calculations. In addition to essential arithmetic functions, Calco automatically saves a history of your recent calculations, allowing you to review, copy, or reuse them whenever you need. Key Features: Basic operations: addition, subtraction, multiplication, and division. Calculation history accessible at all times. Intuitive and easy-to-use interface. Optimized for fast and stable performance on any iOS device. Compatible with light and dark modes. With Calco, you have a practical, secure, and straightforward tool for your daily calculation needs, without intrusive ads or unnecessary features.

About

Gradation Calculator

Features
Read full description

Gradation Calculator is a beautifully crafted calculator that turns every button press into a burst of living color. Powered by real-time fluid simulation rendered directly in Metal, the background flows and shifts with vibrant gradients — reacting to every number you enter and exploding into a full rainbow when you hit equals. Now with a full scientific keypad, it's as capable as it is beautiful: switch on function mode and the same fluid canvas backs trigonometry, logarithms, powers, roots, and more. Features: • Scientific calculator — tap ƒ(x) to reveal trig (sin / cos / tan and their inverses), hyperbolic functions, logarithms, powers and roots, factorial, reciprocals, the constants π and e, parentheses, and scientific notation • Natural math notation — expressions display the way you'd write them: √2, ln(9), 3², ³√(9), log₁₀(9) • 2nd & Deg/Rad — a 2nd key unlocks inverse functions, with switchable degree and radian modes • Color themes — choose your mood with Ocean, Sunset, Aurora, and Galaxy gradient palettes • Real-time fluid simulation — smooth, GPU-powered color flow that responds to every tap • Rainbow burst on equals — a satisfying full-color explosion every time you calculate • Calculation history — review past results and tap any entry to reuse it instantly • Long-press to copy — hold the result to copy it to your clipboard with haptic feedback • Elegant minimal UI — transparent buttons float over the dynamic gradient background • Dark-mode native — designed from the ground up for a stunning dark display

Screenshots

CALCOs4 screens
Gradation Calculator1 screens

Verdict

The call

The clearest difference is device support: CALCOs at 3 against Gradation Calculator's 1. CALCOs also leads on iOS requirement (15.1 vs 18.2). On price, ads and in-app purchases there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

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

Scorecard2 real differences · 3 level
CALCOs versus Gradation Calculator: the parameters behind the verdict, then further details
ParameterCALCOsGradation Calculator
PriceFreeFree
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better18.2
Further details — not scored
Size24 MB6 MB
Age rating4+12+
DeveloperSportrade OUMASATO MISAWA

In-app purchases

None

CALCOs

No in-app purchases

None

Gradation Calculator

No in-app purchases

Questions

Is CALCOs free?
CALCOs is free to download, with no in-app purchases.
Is Gradation Calculator free?
Gradation Calculator is free to download, with no in-app purchases.
Do CALCOs or Gradation Calculator have ads?
Neither CALCOs nor Gradation Calculator shows ads.

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