# Number Chain vs Spot Differences

The clearest difference is in-app purchases: Number Chain at none against Spot Differences's 3. Number Chain also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Spot Differences sells 3 one-off in-app purchases. Number Chain asks for nothing beyond the download.

## The numbers

| Metric | Number Chain | Spot Differences |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | — |
| Size | 56 MB | 93 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FGTP Labs](https://appshunter.io/developer/1849326000) | [Deepxrlab Inc.](https://appshunter.io/developer/6791463087) |

## What reviewers say

### Number Chain

[App page](https://appshunter.io/ios/app/number-chain-logic-grid/id6754763674)

**Features:** macOS Compatibility

**In-app purchases:** none


### Spot Differences

[App page](https://appshunter.io/ios/app/spot-differences-bread-alley/id6791463085)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hint+5 | $0.49 | one-time |
| Hint+12 | $0.99 | one-time |
| Hint+30 | $1.99 | one-time |


## Frequently asked questions

### Is Number Chain free?

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

### Is Spot Differences free?

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

### Do Number Chain or Spot Differences have ads?

Spot Differences shows ads; Number Chain does not.

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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.*