# Number Chain vs Crescendo Flow

The clearest difference is in-app purchases: Number Chain at none against Crescendo Flow's 1. 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. Crescendo Flow sells 1 one-off in-app purchase. Number Chain asks for nothing beyond the download.

## The numbers

| Metric | Number Chain | Crescendo Flow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | — |
| Size | 56 MB | 227 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FGTP Labs](https://appshunter.io/developer/1849326000) | [Badre HOUIBI](https://appshunter.io/developer/1860718696) |

## What reviewers say

### Number Chain

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Crescendo Flow

[App page](https://appshunter.io/ios/app/crescendo-flow/id6784260308)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $2.99 | one-time |


## Frequently asked questions

### Is Number Chain free?

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

### Is Crescendo Flow free?

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

### Do Number Chain or Crescendo Flow have ads?

Crescendo Flow 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.*