# Book Sage vs Cratelog

The clearest difference is in-app purchases: Book Sage at none against Cratelog's 2. Book Sage also leads on device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Cratelog sells 2 in-app purchases, starting at $2.99 per month. Book Sage asks for nothing beyond the download.

Book Sage ships an update every 4 days, Cratelog every 5 days. The most recent releases landed on October 8, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Book Sage | Cratelog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/cratelog-book-box-tracker/id6780173035/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 days |
| Monetization | — | Free |
| Size | 8 MB | 82 MB |
| Requires iOS | **15.5** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Young Enterprise Solutions Limited Liability Company](https://appshunter.io/developer/1827710473) | [Micha Przybya](https://appshunter.io/developer/1877149824) |

## What reviewers say

### Book Sage

[App page](https://appshunter.io/ios/app/book-sage/id6748863090)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cratelog

[App page](https://appshunter.io/ios/app/cratelog-book-box-tracker/id6780173035)

Manage multiple book box subscriptions and never miss a skip deadline. Track all your subscriptions, upcoming reveals, and your book collection in one place. Avoid duplicate purchases and understand your spending.

**Highlights:** Never miss a skip deadline, All subscriptions in one place, Spoiler-safe reveals, Track your book collection, Monitor spending and savings, Manage preorders and sales

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cratelog Plus Monthly | $2.99 | per month |
| Cratelog Plus Yearly | $24.99 | per year |


## Frequently asked questions

### Is Book Sage free?

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

### Is Cratelog free?

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

### Do Book Sage or Cratelog have ads?

Neither Book Sage nor Cratelog shows ads.

### Which is updated more often, Book Sage or Cratelog?

Book Sage ships an update every 4 days, and Cratelog every 5 days. Most recently, Book Sage was updated on October 8, 2026 and Cratelog on October 18, 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.*