# Odserva vs Voice Reader

The clearest difference is in-app purchases: Odserva at none against Voice Reader's 3. Odserva also leads on ads (none vs shown) and iOS requirement (12.0 vs 18.0). On price and device support there is nothing between them.

Both are free to download. Voice Reader sells 3 one-off in-app purchases. Odserva asks for nothing beyond the download.

## The numbers

| Metric | Odserva | Voice Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 6 days |
| Size | 1008 MB | 11 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [UNIVERSIDAD POLITECNICA DE CARTAGENA](https://appshunter.io/developer/1139172022) | [Toshiki Shibata](https://appshunter.io/developer/1574698264) |

## What reviewers say

### Odserva

[App page](https://appshunter.io/ios/app/odserva/id6738916338)

**Features:** macOS Compatibility

**In-app purchases:** none


### Voice Reader

[App page](https://appshunter.io/ios/app/voice-reader-yomi/id6742394396)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Quick Support | $0.99 | one-time |
| Supportive Tip | $2.99 | one-time |
| Generous Tip | $5.99 | one-time |


## Frequently asked questions

### Is Odserva free?

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

### Is Voice Reader free?

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

### Do Odserva or Voice Reader have ads?

Voice Reader shows ads; Odserva 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.*