# Probits vs Physical Therapy

The clearest difference is in-app purchases: Probits at none against Physical Therapy's 3. Probits also leads on iOS requirement (9.0 vs 15.0). Physical Therapy's advantage is update cadence (every 11 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Physical Therapy sells 3 in-app purchases, starting at $5.99 per month. Probits asks for nothing beyond the download.

Probits ships an update every 3 weeks, Physical Therapy every 11 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | Probits | Physical Therapy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 11 days** |
| Size | 23 MB | 106 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Behavioral Informatics AB](https://appshunter.io/developer/1532030792) | [Tjard Luedeke](https://appshunter.io/developer/1548123510) |

## What reviewers say

### Probits

[App page](https://appshunter.io/ios/app/probits/id1532030790)

**Features:** macOS Compatibility

**In-app purchases:** none


### Physical Therapy

[App page](https://appshunter.io/ios/app/physical-therapy-rehabuddy/id6746193276)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RehaBuddy Pro | $5.99 | per month |
| RehaBuddy Pro Yearly | $44.99 | per year |
| RehaBuddy Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Probits free?

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

### Is Physical Therapy free?

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

### Do Probits or Physical Therapy have ads?

Neither Probits nor Physical Therapy shows ads.

### Which is updated more often, Probits or Physical Therapy?

Probits ships an update every 3 weeks, and Physical Therapy every 11 days. Most recently, Probits was updated on October 25, 2026 and Physical Therapy on October 25, 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.*