Comparison

Ducala vs sci.calculator

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

sci.calculator

Features
Read full description

A stylish yet powerful scientific calculator. The app is designed with a single-screen layout for simple and intuitive operation. Calculation history is saved and can be reused easily. Results are shown in both mathematical notation and decimal format. 【Main Features】 • Basic arithmetic, modulo, trigonometric functions • Exponential, logarithmic, power and root calculations • Unit conversion and 47 scientific constants (CODEC2022) • Prime factorization, GCD and LCM • Binary, octal and hexadecimal calculations with logical operations • 8 memory slots • Permutations, combinations, and pseudo-random numbers • Systems of linear equations (up to 4 variables) • Polynomial equations (up to 4th degree) • Equation solving using Newton’s method • Time and angle calculations • External keyboard support 【Designed for Ease of Use】 • Unit conversion includes intuitive units such as “Tokyo Dome volume,” light-years, and cooking measurements. • Choose from 6 color themes to match your iPhone or iPad. • Quick switching between RAD/DEG and number bases on a single screen. • Supports iPad multitasking, allowing calculations alongside other apps. Clean, readable, and efficient. A scientific calculator that combines functionality with a modern design.

Screenshots

Ducala3 screens
sci.calculator3 screens

Verdict

The call

The clearest difference is in-app purchases: Ducala at none against sci.calculator's 1. Ducala also leads on update cadence (fortnightly vs every 5 weeks) and iOS requirement (13.0 vs 15.0). On price, 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. sci.calculator sells 1 one-off in-app purchase. Ducala asks for nothing beyond the download.

UpkeepUpdate frequency

Ducala ships an update fortnightly, sci.calculator every 5 weeks. The most recent releases landed on October 1, 2026 and September 30, 2026 respectively.

Scorecard3 real differences · 3 level
Ducala versus sci.calculator: the parameters behind the verdict, then further details
ParameterDucalasci.calculator
PriceFreeFree
Update frequencyFortnightly — betterEvery 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size17 MB49 MB
Age rating4+4+
DeveloperTeerachart JongkoldeeYukihiro Shioya

In-app purchases

None

Ducala

No in-app purchases

1 purchases

sci.calculator

One-time1
  • remove Ads$1.99

Questions

Is Ducala free?
Ducala is free to download, with no in-app purchases.
Is sci.calculator free?
sci.calculator is free to download, with in-app purchases available.
Do Ducala or sci.calculator have ads?
Neither Ducala nor sci.calculator shows ads.
Which is updated more often, Ducala or sci.calculator?
Ducala ships an update fortnightly, and sci.calculator every 5 weeks. Most recently, Ducala was updated on October 1, 2026 and sci.calculator on September 30, 2026.

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