Comparison

Ducala vs CompisCalculator Pro

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

Head to head
About

Ducala

Features
Read full description

Calculate in hours and minutes. up to thousand hours.

About

CompisCalculator Pro

A scientific calculator designed to enhance productivity with features like real-time results, unit conversion, and custom buttons. It offers a date calculator, customizable appearance, and is optimized for iPad.

Highlights
  • Real-time calculation results
  • Integrated unit and currency converter
  • Customizable buttons and functions
  • Date and time difference calculator
  • Calculation history
  • Customizable appearance
  • iPad optimization
Features
Read full description

CompisCalculator is a scientific calculator designed to boost you productivity and offer a more robust experience. •HISTORY: Calculations are saved in history to be used again later if needed. •REALTIME RESULTS: The calculator shows realtime results while typing •UNITCONVERTER: The unit can be used to convert different units like mass, volume and more. It also features a currency converter that updates every day. •CUSTOM BUTTONS: With the custom buttons feature you can save variables as your own button. You can also create custom function witch can be useful when working with •DATE CALCULATOR: Use the date calculator to measure the difference in time between two dates or times of day. •NO ADS: CompisCalculator is free from those enjoying ads. •IPAD OPTIMIZED: CompisCalculator is optimized for both iPad and iPhone and can take advantage of split screen and runs in both portrait and landscape orientations. •CUSTOMIZABLE LOOK: Make the calculator you own by changing the color. Choose one of the preset colors or get creative and choose the RGB values to get the exact color you want. •THOUSAND SEPARATOR: Thousand separator makes it easier to visualize the number. •HAPTIC FEEDBACK AND SOUND: Choose between different button sounds and haptic feedback styles or turn them of.

Screenshots

Ducala3 screens
CompisCalculator Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: Ducala at none against CompisCalculator Pro's 1. Ducala also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support 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. CompisCalculator Pro sells 1 one-off in-app purchase. Ducala asks for nothing beyond the download.

UpkeepUpdate frequency

Ducala ships an update fortnightly, CompisCalculator Pro every 3 weeks. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

Scorecard2 real differences · 7 level
Ducala versus CompisCalculator Pro: the parameters behind the verdict, then further details
ParameterDucalaCompisCalculator Pro
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyFortnightly — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size17 MB3 MB
Age rating4+4+
DeveloperTeerachart JongkoldeeKarl Noreland

In-app purchases

None

Ducala

No in-app purchases

1 purchases

CompisCalculator Pro

One-time1
  • CompisCalculator premium$2.49

Questions

Is Ducala free?
Ducala is free to download, with no in-app purchases.
Is CompisCalculator Pro free?
CompisCalculator Pro is free to download, with in-app purchases available.
Do Ducala or CompisCalculator Pro have ads?
Neither Ducala nor CompisCalculator Pro shows ads.
Which is updated more often, Ducala or CompisCalculator Pro?
Ducala ships an update fortnightly, and CompisCalculator Pro every 3 weeks. Most recently, Ducala was updated on October 18, 2026 and CompisCalculator Pro on October 15, 2026.

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