# Avi21 vs E Numbers Guide

The clearest difference is in-app purchases: Avi21 at none against E Numbers Guide's 4. Avi21 also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. E Numbers Guide sells 4 in-app purchases, starting at $1.99 per month. Avi21 asks for nothing beyond the download.

## The numbers

| Metric | Avi21 | E Numbers Guide |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Fortnightly |
| Size | 21 MB | 228 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AVi - Center for psykisk sundhed og forebyggelse](https://appshunter.io/developer/1637150615) | [Olga Ivanova](https://appshunter.io/developer/1733570435) |

## What reviewers say

### Avi21

[App page](https://appshunter.io/ios/app/avi21/id6468584769)

**Features:** macOS Compatibility

**In-app purchases:** none


### E Numbers Guide

[App page](https://appshunter.io/ios/app/e-numbers-guide/id6478639811)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| en-au | $1.99 | per month |
| en-au | $1.99 | one-time |
| en-au | $5.99 | one-time |
| en-au | $59.99 | one-time |


## Frequently asked questions

### Is Avi21 free?

Avi21 is free to download, with no in-app purchases.

### Is E Numbers Guide free?

E Numbers Guide is free to download, with in-app purchases available.

### Do Avi21 or E Numbers Guide have ads?

E Numbers Guide shows ads; Avi21 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.*