Sun Day Tracker vs Frelax
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sun Day Tracker
Monitor your daily vitamin D absorption from sunlight exposure. This straightforward application helps you keep track of your sun-related vitamin D intake.
- Track daily vitamin D intake
- Sunlight exposure monitoring
- Simple interface
- Daily tracking
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A simple app to track you daily vitamin D intake from the sun.
Frelax
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Balance your inner peace through frequency and choice. Relax by removing negativity from yourself and your surroundings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Sun Day Tracker at none against Frelax's 2. Sun Day Tracker also leads on ads (none vs shown). Frelax's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price and update cadence 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. Frelax sells 2 in-app purchases, starting at $4.99 per month. Sun Day Tracker asks for nothing beyond the download.
Sun Day Tracker ships an update monthly, Frelax every 5 weeks. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.
| Parameter | Sun Day Tracker | Frelax |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (28 ratings) — better | — |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 28 — better | — |
| Update frequency | Monthly — better | Every 5 weeks |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 1 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | permissionless tech, llc | HALIL IBRAHIM BERK |
In-app purchases
Sun Day Tracker
No in-app purchases
Frelax
- Premium Monthly$4.991 Month
- Premium Yearly$34.991 Year
