# Micro Clock vs Book Flip Notes

The clearest difference is iOS requirement: Micro Clock at 15.0 against Book Flip Notes's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Micro Clock sells 1 one-off in-app purchase and Book Flip Notes sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Micro Clock ships an update every 9 days, Book Flip Notes fortnightly. The most recent releases landed on September 22, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Micro Clock | Book Flip Notes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Size | 6 MB | 64 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [俊贤 黄](https://appshunter.io/developer/1889807845) | [lecoo](https://appshunter.io/developer/1630534948) |

## What reviewers say

### Micro Clock

[App page](https://appshunter.io/ios/app/micro-clock-floating-timer/id6762129008)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Micro Clock Pro Lifetime | $9.99 | one-time |


### Book Flip Notes

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

**Features:** Vision Pro support

**In-app purchases (1)**

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


## Frequently asked questions

### Is Micro Clock free?

Micro Clock 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 Micro Clock or Book Flip Notes have ads?

Neither Micro Clock nor Book Flip Notes shows ads.

### Which is updated more often, Micro Clock or Book Flip Notes?

Micro Clock ships an update every 9 days, and Book Flip Notes fortnightly. Most recently, Micro Clock was updated on September 22, 2026 and Book Flip Notes on September 25, 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.*