# Protocell Defender vs Doodlekeep

The clearest difference is in-app purchases: Protocell Defender at none against Doodlekeep's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Doodlekeep sells 1 one-off in-app purchase. Protocell Defender asks for nothing beyond the download.

## The numbers

| Metric | Protocell Defender | Doodlekeep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 days |
| Size | 66 MB | 2.9 GB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Pierre-Julien AVRIL](https://appshunter.io/developer/1877804000) | [Defender Outfitters](https://appshunter.io/developer/6805183341) |

## What reviewers say

### Protocell Defender

[App page](https://appshunter.io/ios/app/protocell-defender/id6767057378)

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

**In-app purchases:** none


### Doodlekeep

[App page](https://appshunter.io/ios/app/doodlekeep/id6812104373)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Notebook | $3.99 | one-time |


## Frequently asked questions

### Is Protocell Defender free?

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

### Is Doodlekeep free?

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

### Do Protocell Defender or Doodlekeep have ads?

Neither Protocell Defender nor Doodlekeep 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.*