# ShelfMark vs Lumi

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

Both are free to download. ShelfMark sells 1 one-off in-app purchase 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.

ShelfMark ships an update weekly, Lumi daily. The most recent releases landed on September 15, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | ShelfMark | Lumi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Size | 6 MB | 18 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [InnovaLabWorks](https://appshunter.io/developer/1888514726) | [Ivan Trajanovski](https://appshunter.io/developer/1718049049) |

## What reviewers say

### ShelfMark

[App page](https://appshunter.io/ios/app/shelfmark-reading-tracker/id6788129809)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ShelfMark Lifetime | $12.99 | one-time |


### 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 ShelfMark free?

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

### Is Lumi free?

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

### Do ShelfMark or Lumi have ads?

Neither ShelfMark nor Lumi shows ads.

### Which is updated more often, ShelfMark or Lumi?

ShelfMark ships an update weekly, and Lumi daily. Most recently, ShelfMark was updated on September 15, 2026 and Lumi on September 9, 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.*