# ClassDue vs Retain

The clearest difference is in-app purchases: Retain at none against ClassDue's 4. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ClassDue sells 4 one-off in-app purchases. Retain asks for nothing beyond the download.

## The numbers

| Metric | ClassDue | Retain |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Size | 40 MB | 43 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Troy Shepherd](https://appshunter.io/developer/1874344571) | [HonestyVision](https://appshunter.io/developer/1804536258) |

## What reviewers say

### ClassDue

[App page](https://appshunter.io/ios/app/classdue/id6758674728)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Add-on | $1.99 | one-time |
| Montlhy | $4.99 | one-time |
| Term | $14.99 | one-time |
| Yearly | $29.99 | one-time |


### Retain

[App page](https://appshunter.io/ios/app/retain-revision-tracker/id6799671289)

**In-app purchases:** none


## Frequently asked questions

### Is ClassDue free?

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

### Is Retain free?

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

### Do ClassDue or Retain have ads?

Neither ClassDue nor Retain shows ads.

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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.*