# Shelfy vs PlotLock

The clearest difference is in-app purchases: PlotLock at none against Shelfy's 13. PlotLock also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.6). Shelfy's advantage is chart position (#43 vs unranked) and update cadence (every 6 days vs every 2 weeks). On price and device support there is nothing between them.

Both are free to download. Shelfy sells 12 in-app purchases, starting at $4.99 per 7 days. PlotLock asks for nothing beyond the download.

Shelfy ships an update every 6 days, PlotLock every 2 weeks. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Shelfy | PlotLock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1.1K ratings)](https://appshunter.io/ios/app/shelfy-book-tracker-and-tbr/id6755626127/reviews)** | — |
| Number of ratings | **1.1K** | — |
| Positive reviews | 27.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#43** | — |
| Size | 169 MB | 3 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Oleksandr Oleksandrovych Murakhovskyi](https://appshunter.io/developer/1822060947) | [Nicholas Figliolia](https://appshunter.io/developer/1896735478) |

## What reviewers say

### Shelfy

[App page](https://appshunter.io/ios/app/shelfy-book-tracker-and-tbr/id6755626127)

**Currently charting:** #43 Top Grossing · Book, #46 Top Free · Book (US App Store)

Organize your personal library, track reading progress, and enhance comprehension with focused reading sessions and note-taking tools. Capture quotes, save bookmarks, and review your reading statistics to foster a deeper understanding and consistent reading habit.

**Highlights:** Add books via search or barcode scan, Beautiful digital bookshelf, Focused reading sessions with soundscapes, Capture and save text quotes from pages, Save and search bookmarks, Track daily, monthly, and yearly reading stats

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly subscription | $4.99 | per 7 days |
| Weekly subscription | $4.99 | per 7 days |
| Monthly subscription | $9.99 | per month |
| Monthly subscription | $14.99 | per month |
| Yearly subscription with 30% off | $24.99 | per year |
| Yearly subscription | $29.99 | per year |
| Yearly subscription | $38.99 | per year |
| Yearly subscription | $38.99 | per year |
| Yearly subscription | $44.99 | per year |
| 10 Spines | $2.99 | one-time |
| 100 Spines | $24.99 | one-time |
| Lifetime access to Shelfy | $99.99 | one-time |


### PlotLock

[App page](https://appshunter.io/ios/app/plotlock/id6809834021)

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

**In-app purchases:** none


## Frequently asked questions

### Is Shelfy free?

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

### Is PlotLock free?

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

### Do Shelfy or PlotLock have ads?

Shelfy shows ads; PlotLock does not.

### Which is updated more often, Shelfy or PlotLock?

Shelfy ships an update every 6 days, and PlotLock every 2 weeks. Most recently, Shelfy was updated on October 13, 2026 and PlotLock on September 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.*