Sunbathe vs Hydro Track
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Sunbathe
This app helps you understand your vitamin D needs and how to get enough through safe sun exposure. It calculates optimal sunning times and duration based on your location to prevent deficiency and related health issues.
- Vitamin D deficiency information
- Optimal sun exposure timing
- Personalized duration calculations
- Location-based recommendations
- Health benefit insights
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Getting enough vitamin D is crucial for proper functioning of the body. However, half of the population has insufficient levels of vitamin D. This can lead to various health problems such as osteoporosis, cancer, depression, muscle weakness or even death. And obviously, we don't want that for you. Vitamin D can be obtained through three methods: sun exposure, diet, or supplementation. Can you guess which method is the best? If you chose method one, you are correct. With this goal in mind, we have created Sunbatheβa simple application that addresses the following questions: β Can I get sufficient vitamin D in my location? β What is the optimal time to obtain enough vitamin D? β How much time do I need?
Hydro Track
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HydroTrack makes drinking enough water simple, satisfying, and actually fun. Log your drinks in seconds, watch your daily progress fill up, and build a streak worth protecting. Whether you're juggling work, workouts, or just trying to feel better β HydroTrack keeps your hydration on track. TRACK EVERY DROP Log water, coffee, tea, juice and more with a single tap. Set your personal daily goal and watch your progress ring grow throughout the day. MULTIPLE PROFILES One app for the whole family. Each profile has its own stats, goals, achievements, and history β fully separate. LEVEL UP AS YOU HYDRATE Earn XP every time you log a drink. Hit daily goals, build streaks, and unlock achievements as you level up from Beginner to Diamond. Hydration has never felt this rewarding. HISTORY & STATS A full calendar view of every day you've tracked. See your 7-day average, best day, current streak, and total days tracked β all at a glance. DARK MODE Easy on the eyes, day and night. Dark mode syncs instantly across every screen. 10 LANGUAGES Available in English, Turkish, Spanish, French, German, Portuguese, Russian, Arabic, Hindi, and Chinese. DAILY REMINDERS Set gentle notifications so you never forget to hydrate. No subscription. No ads. Just water.
Screenshots
Verdict
The clearest difference is in-app purchases: Hydro Track at none against Sunbathe's 1. Sunbathe's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement 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. Sunbathe sells 1 in-app purchase, starting at $3.99 per month. Hydro Track asks for nothing beyond the download.
Sunbathe ships an update every 3 weeks, Hydro Track every 2 months. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.
| Parameter | Sunbathe | Hydro Track |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | β |
| Update frequency | Every 3 weeks β better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Monetization | Freemium | β |
| Devices | iPhone, iPad, iPod β better | iPhone, iPod |
| Requires iOS | 15.1 β better | 15.6 |
| Further details β not scored | ||
| Size | 43 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Julia Alvarez de Eulate Sainz | OKAN COSKUN |
In-app purchases
Sunbathe
- Sunbathe Premium$3.991 Month
Hydro Track
No in-app purchases









