Prism vs Sunshine D3
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Prism
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Prism is an elegant utility that transforms your daily sunlight exposure into a journey of discovery. By syncing seamlessly with your Apple Watch, Prism helps you balance your light intake and well-being effortlessly. Key Features 1 Seamless Apple Watch Integration. Automatically syncs Time in Daylight using Apple Watch ambient light sensors for a hands-free tracking experience. 2 Dynamic iPhone Widgets. Stay connected with beautiful Home Screen and Lock Screen widgets that show your progress at a glance. 3 Spirit Evolution. Your sunlight data nourishes unique Spirits. Unlock various visual forms as they evolve based on your daily activity. 4 Environmental Insights. View real-time local UV Index and sunset data to plan your outdoor day safely. 5 Secure HealthKit Sync. Prism integrates deeply with the Apple Health app to store and visualize your light exposure data securely. Disclaimer. All data is for informational purposes only. Please consult a professional before making health decisions. information about the auto-renewable nature of the Premium Subscription: Subscription period: 1 month. Price: $1.99 per month (or local equivalent). Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. Terms of Use (EULA): [https://superficial-restaurant-956.notion.site/Privacy-Policy-2f3f52245d5580b1ae9ac299a0408cff?source=copy_link]. Privacy Policy: [https://superficial-restaurant-956.notion.site/Terms-of-Use-EULA-2f3f52245d558073aa26f42eb6149f80?source=copy_link].
Sunshine D3
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It helps you determine the optimal time to get vitamin D3 when sunbathing. It also provides information about the relationship between the sun and vitamin D3. It helps you avoid sun damage.
Screenshots
Verdict
The clearest difference is in-app purchases: Sunshine D3 at none against Prism's 1. Sunshine D3 also leads on iOS requirement (15.0 vs 26.0). Prism's advantage is ads (none vs shown) and update cadence (every 11 days vs every 2 months). On price and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Prism sells 1 in-app purchase, starting at $1.99 per month. Sunshine D3 asks for nothing beyond the download.
Prism ships an update every 11 days, Sunshine D3 every 2 months. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.
| Parameter | Prism | Sunshine D3 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 days โ better | Every 2 months |
| Ads | No โ better | Yes |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad, Apple Watch โ better | iPhone, iPod |
| Requires iOS | 26.0 | 15.0 โ better |
| Further details โ not scored | ||
| Size | 3 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | ๅ็ ้ | Ihsan Gercelman |
In-app purchases
Prism
- Prism Premium (Monthly)1 Month trial$1.991 Month
Sunshine D3
No in-app purchases









