# App Blocker & Focus vs Book Flip Notes

The clearest difference is update cadence: App Blocker & Focus at every 3 days against Book Flip Notes's every 11 days. Book Flip Notes's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. App Blocker & Focus sells 4 in-app purchases, starting at $2.99 per month and Book Flip Notes sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

App Blocker & Focus ships an update every 3 days, Book Flip Notes every 11 days. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | App Blocker & Focus | Book Flip Notes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 11 days |
| Size | 75 MB | 72 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [shun awakaku](https://appshunter.io/developer/1826798624) | [lecoo](https://appshunter.io/developer/1630534948) |

## What reviewers say

### App Blocker & Focus

[App page](https://appshunter.io/ios/app/app-blocker-and-focus-cheesee/id6761916377)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CheeseePLUS | $2.99 | per month |
| Grim Plus | $4.99 | per month |
| CheeseePLUS | $29.99 | per year |
| Grim Plus | $49.99 | per year |


### Book Flip Notes

[App page](https://appshunter.io/ios/app/book-flip-notes/id6782423238)

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro | $0.99 | one-time |


## Frequently asked questions

### Is App Blocker & Focus free?

App Blocker & Focus is free to download, with in-app purchases available.

### Is Book Flip Notes free?

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

### Do App Blocker & Focus or Book Flip Notes have ads?

Neither App Blocker & Focus nor Book Flip Notes shows ads.

### Which is updated more often, App Blocker & Focus or Book Flip Notes?

App Blocker & Focus ships an update every 3 days, and Book Flip Notes every 11 days. Most recently, App Blocker & Focus was updated on October 24, 2026 and Book Flip Notes on October 31, 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.*