# E vs Notes Book PRO

The clearest difference is in-app purchases: E at none against Notes Book PRO's 9. E also leads on iOS requirement (13.4 vs 15.0). Notes Book PRO's advantage is update cadence (every 5 weeks vs every 24 months). On price, ads and device support there is nothing between them.

Both are free to download. Notes Book PRO sells 9 in-app purchases, starting at $0.49 per month. E asks for nothing beyond the download.

E ships an update every 24 months, Notes Book PRO every 5 weeks. Both last shipped on September 17, 2026.

## The numbers

| Metric | E | Notes Book PRO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 5 weeks** |
| Size | 24 MB | 15 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Joel FRANCOIS HAUGRIN](https://appshunter.io/developer/1692076179) | [Dylan Zaoui](https://appshunter.io/developer/1773873798) |

## What reviewers say

### E

[App page](https://appshunter.io/ios/app/e-scan/id6468365650)

**In-app purchases:** none


### Notes Book PRO

[App page](https://appshunter.io/ios/app/notes-book-pro/id6736923325)

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All features for 1 month. | $0.49 | per month |
| All features for 3 months | $0.99 | per 3 months |
| All features for 6 months. | $1.99 | per 6 months |
| Premium access for 1 month | $1.99 | per month |
| All features for 1 year. | $3.99 | per year |
| Premium access for 3 months | $3.99 | per 3 months |
| Premium access for 6 months. | $4.99 | per 6 months |
| Premium access for 12 months | $8.99 | per year |
| All features for life | $3.99 | one-time |


## Frequently asked questions

### Is E free?

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

### Is Notes Book PRO free?

Notes Book PRO is free to download, with in-app purchases available.

### Do E or Notes Book PRO have ads?

Neither E nor Notes Book PRO shows ads.

### Which is updated more often, E or Notes Book PRO?

E ships an update every 24 months, and Notes Book PRO every 5 weeks. Most recently, E was updated on September 17, 2026 and Notes Book PRO on September 17, 2026.

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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.*