# Shelvd vs Underlined

The clearest difference is iOS requirement: Shelvd at 16.0 against Underlined's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Shelvd sells 7 in-app purchases, starting at $6.00 per month and Underlined sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Shelvd | Underlined |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (11 ratings)](https://appshunter.io/ios/app/shelvd-smart-book-tracker/id6759407922/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 43 MB | 24 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Platform Thirteen](https://appshunter.io/developer/1878497050) | [Mert Arman](https://appshunter.io/developer/6795348333) |

## What reviewers say

### Shelvd

[App page](https://appshunter.io/ios/app/shelvd-smart-book-tracker/id6759407922)

Effortlessly log your reading progress by simply taking a photo of any page. This app organizes your library visually, tracks detailed reading statistics, and syncs with Goodreads. It also facilitates book club participation and helps manage your to-read list.

**Highlights:** Photo-based page logging, Visual book shelves, Goodreads synchronization, Import entire reading history, Detailed reading statistics, Book club features, Add books via cover photo

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus (Monthly) | $6.00 | per month |
| Pro (Monthly) | $12.00 | per month |
| Full Shelfie (Monthly) | $18.00 | per month |
| Plus (Annual) | $58.00 | per year |
| Pro (Annual) | $114.99 | per year |
| Full Shelfie (Annual) | $172.99 | per year |
| Founders (Annual) | $299.99 | per year |


### Underlined

[App page](https://appshunter.io/ios/app/underlined-bookshelf-tracker/id6805132642)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Underlined - Monthly | $2.99 | per month |
| Underlined - Yearly | $19.99 | per year |


## Frequently asked questions

### Is Shelvd free?

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

### Is Underlined free?

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

### Do Shelvd or Underlined have ads?

Neither Shelvd nor Underlined shows ads.

### Which is updated more often, Shelvd or Underlined?

Shelvd ships an update fortnightly, and Underlined fortnightly. Most recently, Shelvd was updated on October 28, 2026 and Underlined on October 29, 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.*