# Private Library vs Shelf Track

The clearest difference is price: Shelf Track at Free against Private Library's $1.99. Shelf Track also leads on update cadence (weekly vs every 18 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Shelf Track is free to download; Private Library costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Private Library ships an update every 18 months, Shelf Track weekly. The most recent releases landed on October 27, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Private Library | Shelf Track |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/shelf-track-inventory-tracking/id6761561265/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Weekly** |
| Monetization | — | Free |
| Size | 9 MB | 38 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [艳华 顾](https://appshunter.io/developer/979842988) | [Samuel Snow](https://appshunter.io/developer/1829824175) |

## What reviewers say

### Private Library

[App page](https://appshunter.io/ios/app/private-library/id1672757489)

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

**In-app purchases:** none


### Shelf Track

[App page](https://appshunter.io/ios/app/shelf-track-inventory-tracking/id6761561265)

Easily track your belongings across different locations like pantries, garages, or closets. Organize items by shelf, add photos and notes, and quickly search or filter to manage quantities. Sync your data across devices with Google or Apple sign-in.

**Highlights:** Organize by shelf, Track item quantities, Add photos and notes, Search and filter items, Sync across devices, Simple interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Private Library free?

Private Library costs $1.99, with no in-app purchases.

### Is Shelf Track free?

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

### Do Private Library or Shelf Track have ads?

Neither Private Library nor Shelf Track shows ads.

### Which is updated more often, Private Library or Shelf Track?

Private Library ships an update every 18 months, and Shelf Track weekly. Most recently, Private Library was updated on October 27, 2026 and Shelf Track on October 15, 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.*