# SOSmaths vs Flow Study

The clearest difference is in-app purchases: SOSmaths at none against Flow Study's 6. SOSmaths also leads on iOS requirement (11.0 vs 15.4). On price, ads and device support there is nothing between them.

Both are free to download. Flow Study sells 6 in-app purchases, starting at $8.99 per month. SOSmaths asks for nothing beyond the download.

## The numbers

| Metric | SOSmaths | Flow Study |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | — |
| Size | 78 MB | 60 MB |
| Requires iOS | **11.0** | 15.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DEUSE](https://appshunter.io/developer/1291290064) | [Othmane Bennani](https://appshunter.io/developer/1882722558) |

## What reviewers say

### SOSmaths

[App page](https://appshunter.io/ios/app/sosmaths/id1483450176)

**Features:** macOS Compatibility

**In-app purchases:** none


### Flow Study

[App page](https://appshunter.io/ios/app/flow-study/id6776224510)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flow Study Pro | $8.99 | per month |
| Flow Study Max | $17.99 | per month |
| 30 Flow Study Coin | $1.99 | one-time |
| 100 Flow Study Coin | $3.99 | one-time |
| 250 Flow Study Coin | $8.99 | one-time |
| 600 Flow Study Coin | $14.99 | one-time |


## Frequently asked questions

### Is SOSmaths free?

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

### Is Flow Study free?

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

### Do SOSmaths or Flow Study have ads?

Neither SOSmaths nor Flow Study shows ads.

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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.*