TinyWatchCalc vs Calc Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TinyWatchCalc
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A simple calculator for the Apple Watch. Supports addition, subtraction, multiplication and division.
Calc Pro
This powerful calculator handles complex equations and huge numbers with up to 15 digits of precision. It saves your calculation history, allowing you to reuse previous equations and answers. Access scientific functions like square root and logarithms easily with a swipe.
- Complex calculations
- Huge number handling
- Calculation history
- Scientific functions
- Dark Mode
- Copy answer
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Calc Pro can do complicated calculations easily. It is a very powerful math calculator but easy to use. Calc Pro also handles huge numbers without ellipsis. Most calculators will only handle calculations involving numbers with up to 13 digits, but this one allows for larger and more precise calculations, supporting up to 15 digits of precision to the right of the decimal, and big enough digits to the left. Calculation history won't be lost when the app is closed. You can reuse calculation equations and answers by tapping. Calc Pro also supports mathematical functions like square root, logarithm, combinations, and permutation. You can easily access these functions by swiping. Features: - Arithmetic - Calculation with parentheses - Dark Mode - Huge Number Handling - Copy calc answer with a long press - Calculation history - Scientific calculation - Swipe to change the keyboard easily
Screenshots
Verdict
The clearest difference is ads: TinyWatchCalc at none against Calc Pro's shown. TinyWatchCalc also leads on iOS requirement (12.0 vs 18.0). Calc Pro's advantage is update cadence (monthly vs every 16 months). On price, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
TinyWatchCalc ships an update every 16 months, Calc Pro monthly. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.
| Parameter | TinyWatchCalc | Calc Pro |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (5 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 5 — better |
| Update frequency | Every 16 months | Monthly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 9 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Peter Entwistle | Keita Nonaka |
In-app purchases
TinyWatchCalc
No in-app purchases
Calc Pro
No in-app purchases
