SunGuard vs GaitMetrics
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
SunGuard
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The app dynamically adapts to your behavior: If you move into the shade or partial shade, your remaining sun exposure time is recalculated with a single tap. The same applies to activities like swimming, sweating, or spending time on reflective surfaces such as snow or sand. This ensures your estimate remains realistic and up-to-date at all times. Youβll be notified in time before your skin is damaged. The app also reminds you when to reapply sunscreenβfor optimal protection all day long. Transparency is key: In the Info section, all calculations are clearly explained, and youβll find in-depth information about UV radiation, skin types, and effective sun protection. The free version already offers all the essential features to reliably protect you from the sun. With the Pro version, you get even more out of the app: β’ Create multiple profiles and conveniently manage your whole family β’ Start tracking your sun exposure retroactively if you forgot to open the app in the morning β’ One-time purchase for β¬9.99 β ad-free for life Whether in everyday life, on vacation, or while exercisingβthis app adapts to you and helps you enjoy your time in the sun safely and mindfully. Not medical advice or a medical device!
GaitMetrics
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GaitMetrics analyzes your walking patterns using your iPhone's motion sensors β no wearable needed. FREE: β’ Step count and cadence β’ Stride regularity score β’ Walking steadiness (0β100) β’ Session history with charts PRO ($2.99 one-time): β’ Walking speed with age-specific health ratings β’ Left-right step symmetry and asymmetry detection β’ Traffic-light ratings (green/yellow/red) for every metric β’ Plain-language insights explaining your results β’ PT/OT clinical tests: Timed Up & Go, 5x Sit-to-Stand, Single Leg Stance β’ Personalized exercise recommendations based on your gait profile β’ Injury recovery tracking for ACL, hip/knee replacement, ankle fractures, and more EVIDENCE-BASED Reference ranges are drawn from peer-reviewed research including the NIH Toolbox 4-Meter Walk Test, CADENCE-Adults Study, and the CDC STEADI fall-prevention program. WELLNESS ONLY GaitMetrics is a general wellness app. It is not a medical device and does not provide medical advice, diagnosis, or treatment. Always consult your physician or physical therapist for medical concerns.
Screenshots
Verdict
The clearest difference is update cadence: GaitMetrics at daily against SunGuard's weekly. SunGuard's advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. SunGuard sells 1 one-off in-app purchase and GaitMetrics sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
SunGuard ships an update weekly, GaitMetrics daily. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.
| Parameter | SunGuard | GaitMetrics |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | Daily β better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 β better | 17.0 |
| Further details β not scored | ||
| Size | 52 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Patrick Schmutz | Andrew Meyers |
In-app purchases
SunGuard
- SunGuard Pro$8.99
GaitMetrics
- GaitMetrics Pro$2.99









