KuCalc vs Thumb calculator
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
KuCalc
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It is a calculator with basic functions. We pursued ease of use with a minimum number of buttons. It has a history function. It can copy the results to clipboard.
Thumb calculator
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A calculator that is easy to operate with just the thumb of one hand, even on large-screen smartphones. *Specially placed numeric keypad
Screenshots
Verdict
The clearest difference is ads: KuCalc at none against Thumb calculator's shown. KuCalc also leads on iOS requirement (11.0 vs 15.8.3). Thumb calculator's advantage is update cadence (every 2 weeks vs every 3 months). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
KuCalc ships an update every 3 months, Thumb calculator every 2 weeks. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.
| Parameter | KuCalc | Thumb calculator |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 2 weeks โ better |
| Ads | No โ better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 โ better | 15.8.3 |
| Further details โ not scored | ||
| Size | 1 MB | 35 MB |
| Age rating | 17+ | 4+ |
| Developer | Mineaki Sakatoku | Hideaki Uchikoshi |
In-app purchases
KuCalc
No in-app purchases
Thumb calculator
No in-app purchases
Questions
Is KuCalc free?
Is Thumb calculator free?
Do KuCalc or Thumb calculator have ads?
Which is updated more often, KuCalc or Thumb calculator?
Other comparisons
