# Prime PD vs SimpleStep

The clearest difference is price: Prime PD at Free against SimpleStep's $0.99. Prime PD also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.0). SimpleStep's advantage is ads (none vs shown) and update cadence (every 5 days vs every 2 weeks). On in-app purchases there is nothing between them.

Prime PD is free to download; SimpleStep costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Prime PD ships an update every 2 weeks, SimpleStep every 5 days. The most recent releases landed on October 14, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Prime PD | SimpleStep |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/prime-pd/id1622995589/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | **Ad-supported** | Paid |
| Size | 35 MB | 1 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPod, Apple TV** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Cabin Health Inc.](https://appshunter.io/developer/1622995591) | [Hiroyuki Yagi](https://appshunter.io/developer/6805959127) |

## What reviewers say

### Prime PD

[App page](https://appshunter.io/ios/app/prime-pd/id1622995589)

Access a large library of on-demand fitness classes specifically designed for neurological disorders like Parkinson's and MS. These evidence-backed workouts are led by expert instructors to help alleviate symptoms, improve mobility, and boost mood from the comfort of your home.

**Highlights:** Disease-targeted fitness classes, Expert neuro instructors, Variety of exercise types, New classes uploaded weekly, On-demand access, Symptom alleviation

**Features:** macOS Compatibility

**In-app purchases:** none


### SimpleStep

[App page](https://appshunter.io/ios/app/simplestep-step-counter/id6806893230)

Track your daily steps, distance, and goal progress with this straightforward iPhone pedometer. View historical activity through daily, weekly, monthly, and yearly charts. Enjoy a clean, ad-free experience with no account required.

**Highlights:** Step, distance, and goal tracking, Daily, weekly, monthly, yearly charts, Customizable daily step goal, App icon badge for steps, Light/dark/system appearance options, Accent and app icon color choices

**In-app purchases:** none


## Frequently asked questions

### Is Prime PD free?

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

### Is SimpleStep free?

SimpleStep costs $0.99, with no in-app purchases.

### Do Prime PD or SimpleStep have ads?

Prime PD shows ads; SimpleStep does not.

### Which is updated more often, Prime PD or SimpleStep?

Prime PD ships an update every 2 weeks, and SimpleStep every 5 days. Most recently, Prime PD was updated on October 14, 2026 and SimpleStep on September 27, 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.*