Comparison

Prime PD vs SimpleStep

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Prime PD

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
Read full description

Prime PD is the largest, on-demand library of fitness classes for neurological disorders, such as Parkinson's disease, Multiple Sclerosis, and more. Access hundreds of recorded workouts taught by coaches who specialize in specific neurological disorders. Each class is evidence-backed and designed to alleviate the symptoms of your disease. Watch classes from the comfort and privacy of your home, on your own schedule. Features: • Disease-targeted classes: Tailored to your specific needs and condition, whether you have Parkinson's or MS. • Variety of exercise types: Strength training, cardio, balance, flexibility, and more - all led by expert neuro instructors. • New classes weekly: We upload new classes every week from new coaches, keeping classes fresh and keeping you challenged. • On-demand access: Exercise anytime, anywhere with our library of video workouts. Prime PD helps you: • Improve your symptoms: Reduce tremors, stiffness, fatigue, and other symptoms. • Increase mobility and independence: Perform daily activities with greater ease. • Boost your energy levels and mood: Feel stronger and more confident. • Reduce your risk of falls and injuries: Improve your balance and stay independent for longer Download Prime PD today for instant access to hundreds of disease-targeted workout classes.

About

SimpleStep

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
Read full description

Your steps, without the clutter. SimpleStep is a simple iPhone pedometer that shows today’s steps, walking and running distance, and goal progress at a glance. Look back at your activity with daily, weekly, monthly, and yearly charts. No ads. No account. No tracking. One purchase, with no subscriptions or in-app purchases. WHAT YOU CAN DO • View today’s and past days’ steps, distance, and goal progress • Swipe to move between days and chart periods • Review daily (hourly), weekly, monthly, and yearly step charts • See totals and averages for steps and distance • Tap a weekly chart bar to view that day’s activity • Set a daily goal from 1,000 to 30,000 steps in 1,000-step increments • Show today’s steps on the app icon badge with notification permission • Receive a silent goal notification once per day • Choose light, dark, or system appearance • Choose from seven accent colors and seven app icon colors IPHONE-RECORDED ACTIVITY SimpleStep reads Steps and Walking + Running Distance from Apple Health. Only records created by your iPhone are included. Apple Watch data, manual entries, and records written by other apps are excluded. Health data is read-only and stays on your iPhone. SimpleStep does not send your health data to an external server. Distance is displayed in kilometers. Step badges and goal notifications update when you open or return to the app, or when HealthKit delivers a background update. They do not update continuously while the app is closed. REQUIREMENTS An iPhone running iOS 18 or later. Languages: English and Japanese.

Screenshots

Prime PD3 screens
SimpleStep3 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
Prime PD versus SimpleStep: the parameters behind the verdict, then further details
ParameterPrime PDSimpleStep
PriceFree — better$0.99
Rating5.0 (2 ratings) — better—
Positive reviews—100.0% of reviews
Number of ratings2 — better—
Update frequencyEvery 2 weeksEvery 5 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported — betterPaid
DevicesiPhone, iPod, Apple TV — betteriPhone
Requires iOS15.1 — better18.0
Further details — not scored
Size35 MB1 MB
Age rating4+4+
DeveloperCabin Health Inc.Hiroyuki Yagi

Customer experience

Prime PD

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

SimpleStep

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Prime PD

No in-app purchases

None

SimpleStep

No in-app purchases

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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