iPACES Studies vs PD
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iPACES Studies
Engage in neuro-exercises designed to enhance cognitive function. This application offers a preview of research-backed mental training or a pathway to join a scientific study.
- Cognitive function improvement
- Neuro-exercise training
- Research study participation
- Preview of mental exercises
- Designed for Apple Watch
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iPACES is under research for improving cognitive function through neuro-exercise. Play this app to get a preview or to apply to participate in a study.
PD
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A research study for people with Parkinson's Disease and their caregivers that integrates the Health app. Do you have Parkinson's Disease, or are you the caregiver of someone with PD and interested in participating in a research study? Then this study is for you! You can participate if you: have been diagnosed with Parkinson's disease or are the caregiver of someone diagnosed, are 18 years or older, speak English, own a smartphone, are willing to take part in this study that requires you to use mobile health technology for 6 weeks, are willing to take a Mini-Mental State Examination (MMSE)? You can not participate if you: have a major acute medical illness (in the past 6 months) (e.g. heart attack, stroke, alcoholic rehab), have been disabled by a major psychiatric disorder in the past 6 months (e.g., schizophrenia, bipolar disorder)?
Screenshots
Verdict
The clearest difference is iOS requirement: iPACES Studies at 12.0 against PD's 15.5. On price, update cadence, ads and 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
iPACES Studies ships an update every 3 weeks, PD every 2 weeks. The most recent releases landed on September 8, 2026 and September 6, 2026 respectively.
| Parameter | iPACES Studies | PD |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 724 MB | 133 MB |
| Age rating | 4+ | 12+ |
| Developer | iPACES LLC | WellAware Research LLC |
In-app purchases
iPACES Studies
No in-app purchases
PD
No in-app purchases
