# Shelfie vs Nerdie

The clearest difference is in-app purchases: Shelfie at none against Nerdie's 1. Nerdie's advantage is update cadence (every 10 days vs every 4 months) and iOS requirement (15.1 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Nerdie sells 1 in-app purchase, starting at $12.99 per year. Shelfie asks for nothing beyond the download.

Shelfie ships an update every 4 months, Nerdie every 10 days. The most recent releases landed on October 19, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Shelfie | Nerdie |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 10 days** |
| Size | 13 MB | 47 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Mehmet Tarhan](https://appshunter.io/developer/1317600459) | [HALIL AHMET CENGELOGLU](https://appshunter.io/developer/1863259309) |

## What reviewers say

### Shelfie

[App page](https://appshunter.io/ios/app/shelfie-reading-tracker/id6757387402)

**Features:** macOS Compatibility

**In-app purchases:** none


### Nerdie

[App page](https://appshunter.io/ios/app/nerdie-book-tracker/id6787246760)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nerdie Premium Yearly | $12.99 | per year |


## Frequently asked questions

### Is Shelfie free?

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

### Is Nerdie free?

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

### Do Shelfie or Nerdie have ads?

Neither Shelfie nor Nerdie shows ads.

### Which is updated more often, Shelfie or Nerdie?

Shelfie ships an update every 4 months, and Nerdie every 10 days. Most recently, Shelfie was updated on October 19, 2026 and Nerdie 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.*