Comparison

Sunbathe vs Longevity Deck

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Vitamin D deficiency information
  • Optimal sun exposure timing
  • Personalized duration calculations
  • Location-based recommendations
  • Health benefit insights
Features
Read full description

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 Sunbathe—a simple application that addresses the following questions: — Can I get sufficient vitamin D in my location? — What is the optimal time to obtain enough vitamin D? — How much time do I need?

About

Longevity Deck

Track over 125 science-backed health protocols, from sauna and cold plunge to sleep optimization and supplements. Get automatic updates based on the latest research and expert recommendations. Prioritizes user privacy with no account or data collection required.

Highlights
  • Track 125+ science-backed protocols
  • Automatic research updates
  • Visual timeline tracking
  • Privacy-focused, no account needed
  • Optional Apple HealthKit integration
  • Home screen widgets for key metrics
Features
Read full description

Create your personal longevity deck. Track 160+ science backed protocols including sauna, cold plunge, red light therapy, supplements, sleep optimization, and recovery on a visual timeline. STAY CURRENT WITHOUT THE NOISE Every protocol auto updates twice monthly. LongevityDeck scans new research, health podcasts, and expert recommendations from Andrew Huberman, Rhonda Patrick, Tim Ferriss, and leading longevity scientists so you don't waste hours filtering noise. Get the latest on biohacking, anti aging, hormone optimization, and wellness trends automatically. YOUR PRIVACY FIRST HEALTH STACK • No accounts required. No tracking. No data collection. • Optional Apple HealthKit integration for personalized insights on how protocols affect your metrics • 100% free. No paywalls. No subscription. No hidden costs. BUILT BY A BIOHACKER FOR Longevity enthusiasts, biohackers, health conscious professionals, wellness followers, and fans of Huberman Lab, Found My Fitness, Lifespan, and Bryan Johnson. HOW IT WORKS 1. Choose from 125+ curated protocols across recovery, nutrition, supplements, sleep, fitness, cognitive enhancement, and lifestyle optimization 2. Swipe to build your personal protocol deck and stack 3. Get automatic updates when recommendations change based on new research 4. Optional: Join community discussions, read user experiences, and share your longevity stack QUICKLY FIND • Protocols by expert name, benefit, or topic including sleep, focus, recovery, stress reduction, and anti aging • Trending biohacking methods, devices, peptides, and supplements • Source links to original podcasts, papers, and video content SHARE YOUR STACK • Personalized web link to share your full longevity routine • Share individual protocol cards with custom photos HOME SCREEN WIDGET Monitor HRV, resting heart rate, sleep quality, and body fat percentage with color coded weekly trend indicators. Stay motivated without opening the app. IMPORTANT: This app is for informational and educational purposes only. Always consult with your doctor or qualified healthcare provider before making any medical decisions or changes to your health routine.

Screenshots

Sunbathe4 screens
Longevity Deck4 screens

Verdict

The call

The clearest difference is in-app purchases: Longevity Deck at none against Sunbathe's 1. Longevity Deck also leads on update cadence (every 4 days vs every 3 weeks). Sunbathe's advantage is review sentiment (100% vs 80%) and iOS requirement (15.1 vs 18.5). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Sunbathe sells 1 in-app purchase, starting at $3.99 per month. Longevity Deck asks for nothing beyond the download.

UpkeepUpdate frequency

Sunbathe ships an update every 3 weeks, Longevity Deck every 4 days. The most recent releases landed on June 4, 2026 and September 27, 2026 respectively.

Scorecard5 real differences · 5 level
Sunbathe versus Longevity Deck: the parameters behind the verdict, then further details
ParameterSunbatheLongevity Deck
PriceFreeFree
Rating—4.8 (10 ratings) — better
Positive reviews100.0% of reviews — better80.0% of reviews
Number of ratings—10 — better
Update frequencyEvery 3 weeksEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better18.5
Further details — not scored
Size43 MB78 MB
Age rating4+17+
DeveloperJulia Alvarez de Eulate SainzHYPE4MOBILE MALEWICZ I WSPOLNICY SPOŁKA JAWNA

Customer experience

Sunbathe

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Longevity Deck

All ratings10 ratings
Positive90.0%
Neutral10.0%
Negative0.0%
Written reviews5 reviews
Positive80.0%
Neutral20.0%
Negative0.0%

In-app purchases

1 purchases

Sunbathe

Subscriptions1
  • Sunbathe Premium$3.991 Month
None

Longevity Deck

No in-app purchases

Questions

Is Sunbathe free?
Sunbathe is free to download, with in-app purchases available.
Is Longevity Deck free?
Longevity Deck is free to download, with no in-app purchases.
Do Sunbathe or Longevity Deck have ads?
Neither Sunbathe nor Longevity Deck shows ads.
Which is updated more often, Sunbathe or Longevity Deck?
Sunbathe ships an update every 3 weeks, and Longevity Deck every 4 days. Most recently, Sunbathe was updated on June 4, 2026 and Longevity Deck on September 27, 2026.

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