# Book Tracker vs Lumi

The clearest difference is update cadence: Lumi at daily against Book Tracker's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Book Tracker sells 2 in-app purchases, starting at $2.99 per 7 days and Lumi sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Book Tracker ships an update every 2 weeks, Lumi daily. Both last shipped on October 25, 2026.

## The numbers

| Metric | Book Tracker | Lumi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Daily** |
| Size | 18 MB | 18 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Bahattin Duran](https://appshunter.io/developer/1677311418) | [Ivan Trajanovski](https://appshunter.io/developer/1718049049) |

## What reviewers say

### Book Tracker

[App page](https://appshunter.io/ios/app/book-tracker-shelflog/id6767477437)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ShelfLog Premium — Weekly | $2.99 | per 7 days |
| ShelfLog Premium — Monthly | $6.99 | per month |


### Lumi

[App page](https://appshunter.io/ios/app/lumi-book-tracker/id6791566415)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lumi Pro Monthly | $5.99 | per month |
| Lumi Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is Book Tracker free?

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

### Is Lumi free?

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

### Do Book Tracker or Lumi have ads?

Neither Book Tracker nor Lumi shows ads.

### Which is updated more often, Book Tracker or Lumi?

Book Tracker ships an update every 2 weeks, and Lumi daily. Most recently, Book Tracker was updated on October 25, 2026 and Lumi on October 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.*