ALPHA vs PHA022121
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ALPHA
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ALPHA-SOLAR is a clinical trial patient app. Users will be invited via our portal and will given a code to establish a user account.
PHA022121
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The PHA022121-C303 app is intended to collect patient reported outcomes for the PHA022121-C303 clinical study. Your study site will provide you with a QR code to activate your app at your first visit.
Screenshots
Verdict
The clearest difference is update cadence: PHA022121 at monthly against ALPHA's every 4 months. On price, ads, in-app purchases and device support 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.
ALPHA ships an update every 4 months, PHA022121 monthly. The most recent releases landed on September 18, 2026 and September 23, 2026 respectively.
| Parameter | ALPHA | PHA022121 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.4 | 12.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 81 MB |
| Age rating | 12+ | 12+ |
| Developer | Snapiot | ERT,INC |
In-app purchases
ALPHA
No in-app purchases
PHA022121
No in-app purchases
