# CalcBlitz vs Spot The Difference

The clearest difference is in-app purchases: CalcBlitz at none against Spot The Difference's 4. Spot The Difference's advantage is device support and iOS requirement (15.0 vs 26.2). On price there is nothing between them.

Both are free to download. Spot The Difference sells 4 one-off in-app purchases. CalcBlitz asks for nothing beyond the download.

## The numbers

| Metric | CalcBlitz | Spot The Difference |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | — | Weekly |
| Size | 7 MB | 11 MB |
| Requires iOS | 26.2 | **15.0** |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Slavka Polanova](https://appshunter.io/developer/1708764553) | [Euryops corporation](https://appshunter.io/developer/6795529965) |

## What reviewers say

### CalcBlitz

[App page](https://appshunter.io/ios/app/calcblitz-quick-math-quiz/id6763125845)

**In-app purchases:** none


### Spot The Difference

[App page](https://appshunter.io/ios/app/spot-the-difference-kanji/id6795529963)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Hint Tickets | $0.99 | one-time |
| 35 Hint Tickets | $2.99 | one-time |
| Remove Ads | $3.99 | one-time |
| 100 Hint Tickets | $6.99 | one-time |


## Frequently asked questions

### Is CalcBlitz free?

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

### Is Spot The Difference free?

Spot The Difference is free to download, with in-app purchases available.

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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.*