# OCD, Overthinking, Impulses vs ImmuneTracker

OCD, Overthinking, Impulses and ImmuneTracker are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | OCD, Overthinking, Impulses | ImmuneTracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | — |
| Size | 1 MB | 118 MB |
| Requires iOS | **16.4** | 16.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Johannes Matthias Niele Hahn](https://appshunter.io/developer/1775670750) | [University of California at San Francisco](https://appshunter.io/developer/446489325) |

## What reviewers say

### OCD, Overthinking, Impulses

[App page](https://appshunter.io/ios/app/ocd-overthinking-impulses/id6737267887)

**Features:** macOS Compatibility

**In-app purchases:** none


### ImmuneTracker

[App page](https://appshunter.io/ios/app/immunetracker/id6758135820)

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

**In-app purchases:** none


## Frequently asked questions

### Is OCD, Overthinking, Impulses free?

OCD, Overthinking, Impulses is free to download, with no in-app purchases.

### Is ImmuneTracker free?

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

### Do OCD, Overthinking, Impulses or ImmuneTracker have ads?

Neither OCD, Overthinking, Impulses nor ImmuneTracker 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.*