# Countdown Reminder vs CreatorBook

The clearest difference is in-app purchases: Countdown Reminder at none against CreatorBook's 2. Countdown Reminder also leads on update cadence (every 2 months vs every 4 months) and iOS requirement (15.0 vs 17.0). CreatorBook's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. CreatorBook sells 2 in-app purchases, starting at $3.99 per month. Countdown Reminder asks for nothing beyond the download.

Countdown Reminder ships an update every 2 months, CreatorBook every 4 months. The most recent releases landed on September 18, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Countdown Reminder | CreatorBook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 4 months |
| Size | 28 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Haileslassie Lilay Desalegn](https://appshunter.io/developer/1841785547) | [慧慧 高](https://appshunter.io/developer/1887721875) |

## What reviewers say

### Countdown Reminder

[App page](https://appshunter.io/ios/app/countdown-reminder-days-left/id6755392862)

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

**In-app purchases:** none


### CreatorBook

[App page](https://appshunter.io/ios/app/creatorbook-creator-analytics/id6762469059)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CreatorBook Pro Monthly | $3.99 | per month |
| CreatorBook Pro Annual | $24.99 | per year |


## Frequently asked questions

### Is Countdown Reminder free?

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

### Is CreatorBook free?

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

### Do Countdown Reminder or CreatorBook have ads?

Countdown Reminder shows ads; CreatorBook does not.

### Which is updated more often, Countdown Reminder or CreatorBook?

Countdown Reminder ships an update every 2 months, and CreatorBook every 4 months. Most recently, Countdown Reminder was updated on September 18, 2026 and CreatorBook on September 5, 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.*