myHDstory vs MSA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
myHDstory
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The Huntington Study Group presents the first companion application to tell your story about how you live with HD and what are your struggles and how you solve them. You will be able to access approved research studies and consent or not to participate.
MSA
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MSA-SPHERE is an informational platform designed to help individuals explore ongoing clinical research relevant to their condition. The app provides a structured, easy-to-navigate interface to browse publicly available studies, understand their purpose, and review general participation criteria. Users can review study details, including objectives, locations, and high-level requirements, and express interest by securely sharing their consent to be contacted by study teams when appropriate. MSA-SPHERE does not provide medical advice. It serves as a neutral discovery and information layer to improve visibility and access to existing research opportunities.
Screenshots
Verdict
myHDstory and MSA are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
myHDstory ships an update every 5 days, MSA every 10 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | myHDstory | MSA |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days — better | Every 10 days |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 53 MB | 55 MB |
| Age rating | 12+ | 17+ |
| Developer | Huntington Study Group, Ltd | UPSTREAM VISION LLC |
In-app purchases
myHDstory
No in-app purchases
MSA
No in-app purchases
