# Calculator Watch Pro Free vs ReadableCalc

The clearest difference is in-app purchases: ReadableCalc at none against Calculator Watch Pro Free's 1. ReadableCalc also leads on update cadence (weekly vs every 6 weeks). Calculator Watch Pro Free's advantage is iOS requirement (8.2 vs 12.0). On price, ads and device support there is nothing between them.

Both are free to download. Calculator Watch Pro Free sells 1 one-off in-app purchase. ReadableCalc asks for nothing beyond the download.

Calculator Watch Pro Free ships an update every 6 weeks, ReadableCalc weekly. The most recent releases landed on November 1, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Calculator Watch Pro Free | ReadableCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (9 ratings)](https://appshunter.io/ios/app/calculator-watch-pro-free/id981227146/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 28 MB |
| Requires iOS | **8.2** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Muze](https://appshunter.io/developer/908478902) | [YONAGARE LAB](https://appshunter.io/developer/1810986554) |

## What reviewers say

### Calculator Watch Pro Free

[App page](https://appshunter.io/ios/app/calculator-watch-pro-free/id981227146)

Perform calculations directly on your wrist with this Apple Watch calculator. Syncs with your phone for continued work, offering standard and scientific modes. Customize themes to match your device.

**Highlights:** Perform calculations on Apple Watch, Syncs calculations with phone, Standard and scientific modes on phone, Customizable themes, Access history results, Degrees and Radians calculators, Copy and paste numbers

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version include History Logs & 13 Extra Themes | $0.99 | one-time |


### ReadableCalc

[App page](https://appshunter.io/ios/app/readablecalc/id6747457253)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calculator Watch Pro Free free?

Calculator Watch Pro Free is free to download, with in-app purchases available.

### Is ReadableCalc free?

ReadableCalc is free to download, with no in-app purchases.

### Do Calculator Watch Pro Free or ReadableCalc have ads?

Neither Calculator Watch Pro Free nor ReadableCalc shows ads.

### Which is updated more often, Calculator Watch Pro Free or ReadableCalc?

Calculator Watch Pro Free ships an update every 6 weeks, and ReadableCalc weekly. Most recently, Calculator Watch Pro Free was updated on November 1, 2026 and ReadableCalc on November 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*