# BookDay vs Nerdie

The clearest difference is in-app purchases: BookDay at none against Nerdie's 1. On price, update cadence, 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. BookDay asks for nothing beyond the download.

BookDay ships an update weekly, Nerdie every 10 days. The most recent releases landed on September 28, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | BookDay | Nerdie |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 days |
| Size | 4 MB | 47 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [FUNDACAO PADRE LEONEL FRANCA](https://appshunter.io/developer/1566582123) | [HALIL AHMET CENGELOGLU](https://appshunter.io/developer/1863259309) |

## What reviewers say

### BookDay

[App page](https://appshunter.io/ios/app/bookday/id1669909130)

**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 BookDay free?

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

### Is Nerdie free?

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

### Do BookDay or Nerdie have ads?

Neither BookDay nor Nerdie shows ads.

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

BookDay ships an update weekly, and Nerdie every 10 days. Most recently, BookDay was updated on September 28, 2026 and Nerdie on September 30, 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.*