# Parkinson mPower 2 vs outSMARTPD

The clearest difference is update cadence: outSMARTPD at every 2 weeks against Parkinson mPower 2's every 5 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Parkinson mPower 2 ships an update every 5 months, outSMARTPD every 2 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Parkinson mPower 2 | outSMARTPD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.6 (14 ratings)](https://appshunter.io/ios/app/parkinson-mpower-2/id1375781575/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 164 MB | 32 MB |
| Requires iOS | **14.7** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [Sage Bionetworks, a Not-For-Profit Research Organization](https://appshunter.io/developer/972180603) | [outSMARTPD LLC](https://appshunter.io/developer/1594020630) |

## What reviewers say

### Parkinson mPower 2

[App page](https://appshunter.io/ios/app/parkinson-mpower-2/id1375781575)

This app helps individuals track Parkinson's disease symptoms and triggers using questionnaires and phone sensor data. It allows users to review trends and share insights with researchers for a comprehensive study of the disease.

**Highlights:** Track Parkinson's symptoms, Monitor triggers and variations, Activity-based measurements (finger tapping, tremor, walking), Share insights with researchers, Personal research instrument

**In-app purchases:** none


### outSMARTPD

[App page](https://appshunter.io/ios/app/outsmartpd/id6462346736)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Parkinson mPower 2 free?

Parkinson mPower 2 is free to download, with no in-app purchases.

### Is outSMARTPD free?

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

### Do Parkinson mPower 2 or outSMARTPD have ads?

Neither Parkinson mPower 2 nor outSMARTPD shows ads.

### Which is updated more often, Parkinson mPower 2 or outSMARTPD?

Parkinson mPower 2 ships an update every 5 months, and outSMARTPD every 2 weeks. Most recently, Parkinson mPower 2 was updated on November 2, 2026 and outSMARTPD on November 3, 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.*