# TodayBehavior vs ClassBook Pro

The clearest difference is in-app purchases: TodayBehavior at none against ClassBook Pro's 2. TodayBehavior also leads on iOS requirement (13.0 vs 17.6). ClassBook Pro's advantage is update cadence (every 6 days vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. ClassBook Pro sells 2 in-app purchases, starting at $9.99 per year. TodayBehavior asks for nothing beyond the download.

TodayBehavior ships an update every 6 months, ClassBook Pro every 6 days. The most recent releases landed on October 15, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | TodayBehavior | ClassBook Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 6 days** |
| Size | 53 MB | 26 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 17+ |
| Developer | [Sergio A. Villa](https://appshunter.io/developer/1165812755) | [Javier Dosque](https://appshunter.io/developer/1812960402) |

## What reviewers say

### TodayBehavior

[App page](https://appshunter.io/ios/app/todaybehavior/id1165812756)

**Features:** macOS Compatibility

**In-app purchases:** none


### ClassBook Pro

[App page](https://appshunter.io/ios/app/classbook-pro-teacher-grades/id6746811124)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Suscripción Anual Libro de clases | $9.99 | per year |
| Lifetime Access | $34.99 | one-time |


## Frequently asked questions

### Is TodayBehavior free?

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

### Is ClassBook Pro free?

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

### Do TodayBehavior or ClassBook Pro have ads?

Neither TodayBehavior nor ClassBook Pro shows ads.

### Which is updated more often, TodayBehavior or ClassBook Pro?

TodayBehavior ships an update every 6 months, and ClassBook Pro every 6 days. Most recently, TodayBehavior was updated on October 15, 2026 and ClassBook Pro on October 20, 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.*