# Strange Measures vs CalcWheel

The clearest difference is update cadence: CalcWheel at every 9 days against Strange Measures's every 3 weeks. Strange Measures's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Strange Measures sells 10 one-off in-app purchases and CalcWheel sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Strange Measures ships an update every 3 weeks, CalcWheel every 9 days. The most recent releases landed on October 25, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Strange Measures | CalcWheel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calcwheel-math-puzzle-game/id6795952061/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 113 MB | 6 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ECHO FEATHER INTERACTIVE LLC](https://appshunter.io/developer/6785136556) | [Jaroslaw Samelak](https://appshunter.io/developer/6795952063) |

## What reviewers say

### Strange Measures

[App page](https://appshunter.io/ios/app/strange-measures/id6785136554)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Natural Wonders | $2.99 | one-time |
| Hollywood & TV | $2.99 | one-time |
| Wild Kingdom | $2.99 | one-time |
| Under the Sea | $2.99 | one-time |
| Transportation | $2.99 | one-time |
| Amazing Animals | $2.99 | one-time |
| Lost Worlds | $2.99 | one-time |
| Human Marvels | $2.99 | one-time |
| Game Day | $2.99 | one-time |
| Exploration Bundle | $9.99 | one-time |


### CalcWheel

[App page](https://appshunter.io/ios/app/calcwheel-math-puzzle-game/id6795952061)

Engage your mind with number puzzles where you trace paths through operators and numbers to hit target values. Enjoy hundreds of levels and a new daily challenge, all playable offline without ads or timers.

**Highlights:** Trace paths through numbers and operators, Hit five target values per puzzle, 300 campaign levels, Daily new puzzle, Offline play, No ads or timers

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 Hints | $0.99 | one-time |
| 20 Hints | $2.99 | one-time |
| CalcWheel Pro | $4.99 | one-time |


## Frequently asked questions

### Is Strange Measures free?

Strange Measures is free to download, with in-app purchases available.

### Is CalcWheel free?

CalcWheel is free to download, with in-app purchases available.

### Do Strange Measures or CalcWheel have ads?

Neither Strange Measures nor CalcWheel shows ads.

### Which is updated more often, Strange Measures or CalcWheel?

Strange Measures ships an update every 3 weeks, and CalcWheel every 9 days. Most recently, Strange Measures was updated on October 25, 2026 and CalcWheel on October 6, 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.*