Comparison

CalcKit vs Achromator

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

Head to head
About

CalcKit

Design and build your own custom calculators with personalized formulas and input labels. Organize them into groups for easy access. Ideal for students, scientists, and engineers needing more than standard calculator functions.

Highlights
  • Design calculators with custom formulas
  • Up to seven user-defined variables
  • Built-in trig and math functions
  • Organize calculators into groups
  • Unlimited personal calculator creation
Features
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CalcKit lets you create your own personalized calculators. With CalcKit you can: - Design calculators using your own formulas and input labels - Enter formulas with up to seven user-defined variables - Make use of built-in trig and other math functions - Organize your calculators into convenient groups CalcKit has a simple, intuitive interface, and it comes with a set of example calculators to get you started. You can create an unlimited number of personal calculators. Each formula can be as simple or as complex as you need. CalcKit is ideal for students, scientists, engineers and others who do everyday calculations and need more than a limited set of canned formulas.

About

Achromator

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Ever wondered why everyone keeps going on about the beautiful colors of the sunset? Having trouble seeing if a tomato is ripe? What about bananas? Or maybe you just find the world to colorful and want to keep it a little more black-and-white for the day? Achromator translates all color from the phone video stream into unique animated textures. It encodes all hues and shades - without loss of information! It even keeps much of the structure found in color, like mixing, gradual blending and complementary hues. The pattern generator can be adjusted to your personal preference - pattern size, speed and selection of individual colors.

Screenshots

CalcKit4 screens
Achromator3 screens

Verdict

The call

The clearest difference is update cadence: Achromator at monthly against CalcKit's every 30 months. CalcKit's advantage is iOS requirement (15.6 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

UpkeepUpdate frequency

CalcKit ships an update every 30 months, Achromator monthly. The most recent releases landed on June 11, 2026 and September 22, 2026 respectively.

Scorecard2 real differences Β· 6 level
CalcKit versus Achromator: the parameters behind the verdict, then further details
ParameterCalcKitAchromator
PriceFreeFree
Positive reviews80.0% of reviewsβ€”
Update frequencyEvery 30 monthsMonthly β€” better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeβ€”
DevicesiPhone, iPod β€” betteriPhone
Requires iOS15.6 β€” better17.6
Further details β€” not scored
Size0 MB1 MB
Age rating4+4+
DeveloperAkkyra SystemsHANS-JURGEN GRAF GROTE

In-app purchases

None

CalcKit

No in-app purchases

None

Achromator

No in-app purchases

Questions

Is CalcKit free?
CalcKit is free to download, with no in-app purchases.
Is Achromator free?
Achromator is free to download, with no in-app purchases.
Do CalcKit or Achromator have ads?
Neither CalcKit nor Achromator shows ads.
Which is updated more often, CalcKit or Achromator?
CalcKit ships an update every 30 months, and Achromator monthly. Most recently, CalcKit was updated on June 11, 2026 and Achromator on September 22, 2026.

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