Comparison

Clarity 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

Clarity

This app helps you understand the impact of caffeine on your sleep, energy, and focus. Log your intake quickly and visualize how caffeine's half-life affects your daily cycles and nighttime rest.

Highlights
  • Fast caffeine logging
  • Caffeine half-life tracking
  • Sleep and recovery insights
  • Focus and energy analysis
  • Daily and weekly insights
Read full description

Clarity is the simplest way to understand caffeine's real impact on your sleep, energy, and focus. Log your intake fast and see how caffeine's half-life affects your entire day — from your 2PM coffee to your nighttime sleep cycles. • Fast caffeine logging and visualization • Caffeine half-life tracking and prediction • Athletes: see how caffeine affects your sleep and recovery • Focus and energy insights, daily and week-by-week Understand your 3PM crash. Improve your sleep by seeing your caffeine carry-over. Use caffeine deliberately, not accidentally. By using this app, you agree to Apple's Terms of Use (https://www.apple.com/legal/internet-services/itunes/dev/stdeula/) and our Privacy Policy.

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

Clarity4 screens
Longevity Deck4 screens

Verdict

The call

The clearest difference is in-app purchases: Longevity Deck at none against Clarity's 2. Longevity Deck also leads on update cadence (every 4 days vs every 2 weeks) and ratings volume (10 vs 2). Clarity's advantage is review sentiment (100% vs 80%) and rating (5.0 vs 4.8). On price, ads, device support and iOS requirement 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. Clarity sells 2 in-app purchases, starting at $2.99 per month. Longevity Deck asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Clarity holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Longevity Deck has 10 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of Clarity's written reviews are positive against 80% of Longevity Deck's.

UpkeepUpdate frequency

Clarity ships an update every 2 weeks, Longevity Deck every 4 days. The most recent releases landed on October 16, 2026 and October 13, 2026 respectively.

Scorecard6 real differences · 4 level
Clarity versus Longevity Deck: the parameters behind the verdict, then further details
ParameterClarityLongevity Deck
PriceFreeFree
Rating5.0 (2 ratings) — better4.8 (10 ratings)
Positive reviews100.0% of reviews — better80.0% of reviews
Number of ratings210 — better
Update frequencyEvery 2 weeksEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhoneiPhone, iPad — better
Requires iOS18.0 — better18.5
Further details — not scored
Size25 MB78 MB
Age rating17+17+
DeveloperNexus NexusHYPE4MOBILE MALEWICZ I WSPOLNICY SPOŁKA JAWNA

Customer experience

Clarity

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
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

2 purchases

Clarity

Subscriptions2
  • Clarity Plus - Monthly3 Days trial$2.991 Month
  • Clarity Plus - Yearly$19.991 Year
None

Longevity Deck

No in-app purchases

Questions

Is Clarity free?
Clarity is free to download, with in-app purchases available.
Is Longevity Deck free?
Longevity Deck is free to download, with no in-app purchases.
Which has better reviews, Clarity or Longevity Deck?
Clarity is rated higher. Clarity averages 5.0 out of 5 from 2 ratings, while Longevity Deck averages 4.8 from 10 ratings.
Do Clarity or Longevity Deck have ads?
Neither Clarity nor Longevity Deck shows ads.
Which is updated more often, Clarity or Longevity Deck?
Clarity ships an update every 2 weeks, and Longevity Deck every 4 days. Most recently, Clarity was updated on October 16, 2026 and Longevity Deck on October 13, 2026.

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