# ShelfLog vs Rivro

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

Both are free to download. Rivro sells 1 one-off in-app purchase. ShelfLog asks for nothing beyond the download.

ShelfLog ships an update every 3 weeks, Rivro every 2 months. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ShelfLog | Rivro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 5 MB | 51 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Max Shemtob](https://appshunter.io/developer/6771819629) | [Vaneet Gupta](https://appshunter.io/developer/6780653197) |

## What reviewers say

### ShelfLog

[App page](https://appshunter.io/ios/app/shelflog-book-lending/id6771819627)

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

**In-app purchases:** none


### Rivro

[App page](https://appshunter.io/ios/app/rivro-gutenberg-reader/id6780653195)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is ShelfLog free?

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

### Is Rivro free?

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

### Do ShelfLog or Rivro have ads?

Rivro shows ads; ShelfLog does not.

### Which is updated more often, ShelfLog or Rivro?

ShelfLog ships an update every 3 weeks, and Rivro every 2 months. Most recently, ShelfLog was updated on October 8, 2026 and Rivro on October 24, 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.*