# RollerSafe vs Postra

The clearest difference is in-app purchases: RollerSafe at none against Postra's 7. RollerSafe also leads on iOS requirement (9.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Postra sells 7 in-app purchases, starting at $19.99 per month. RollerSafe asks for nothing beyond the download.

## The numbers

| Metric | RollerSafe | Postra |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 16 MB | 90 MB |
| Requires iOS | **9.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RollerSafe AS](https://appshunter.io/developer/1191071535) | [Postra AB](https://appshunter.io/developer/1807937957) |

## What reviewers say

### RollerSafe

[App page](https://appshunter.io/ios/app/rollersafe/id1191071536)

**Features:** macOS Compatibility

**In-app purchases:** none


### Postra

[App page](https://appshunter.io/ios/app/postra-for-better-posture/id6744517735)

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full access monthly | $19.99 | per month |
| Full access yearly | $149.99 | per year |
| Utåtvridna fötter | $4.99 | one-time |
| Base Program | $14.99 | one-time |
| Base Program Bundle | $22.99 | one-time |
| Customized Program | $69.99 | one-time |
| Full access lifetime | $79.99 | one-time |


## Frequently asked questions

### Is RollerSafe free?

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

### Is Postra free?

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

### Do RollerSafe or Postra have ads?

Neither RollerSafe nor Postra 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.*