Comparison

Protocol Zero vs Longevity AI App

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

Head to head
About

Protocol Zero

This app provides a personalized daily plan to improve sleep quality, incorporating science-backed techniques and sleep sounds. It guides users through setting consistent wake times, managing caffeine intake, and activating wind-down routines for better rest.

Highlights
  • Personalized daily sleep plan
  • Sleep sounds (white noise, rain)
  • Consistent wake time guidance
  • Caffeine cutoff reminders
  • Wind-down mode
  • CBT-I techniques
Read full description

Protocol Zero is the first Active Sleep Improvement based on Research It’s a system that gives you a clear, personalized daily plan so you know exactly what to do to sleep better starting tonight. New: Protocol Zero now includes sleep sounds you can play at night, including white noise, brown noise, rain, and calming audio. Use them alongside your personalized nightly routine to unwind faster and fall asleep more easily. YOUR PERSONAL SLEEP COACH Unlike most apps that only track your sleep, Protocol Zero guides you through a daily schedule designed to reset your body clock and improve your sleep quality. Each day, you get specific actions that make a real difference: - Set a consistent wake time and get morning light exposure to reset your internal clock and help you feel alert during the day - Follow precise caffeine cutoffs so late-day coffee or tea never interferes with your deep sleep - Activate wind-down mode in the evening, which blocks distracting apps and helps your mind and body relax before bed - Practice science-backed techniques from Cognitive Behavioral Therapy for Insomnia (CBT-I), proven to help you fall asleep faster and stay asleep longer HOW IT WORKS Your body depends on a 24-hour internal clock to regulate sleep. Protocol Zero anchors your day around two key signals: when you wake up and when you get morning light. The app then schedules your caffeine, meals, exercise, and wind-down activities into optimal time windows. This structure helps you build habits that make you naturally tired at bedtime, so you fall asleep more easily and wake up refreshed. No more lying awake wondering what went wrong. No more generic sleep tips that never stick. Protocol Zero gives you a clear, automated plan that builds lasting habits for deep, restorative sleep. SIMPLE, SCIENCE-BACKED, AND ACTIONABLE Protocol Zero combines the most effective techniques from CBT-I the gold standard for sleep improvement with modern behavioral science. Research shows that tracking your habits and making targeted changes leads to real, lasting results. We make these techniques simple to follow, so you can start seeing improvements right away. WHO IT’S FOR Protocol Zero is designed for healthy adults who want to optimize their sleep. It is an educational tool, not a medical device, and is not intended to diagnose or treat sleep disorders. If you suspect you have insomnia, sleep apnea, or another medical condition, consult a physician. Stop guessing about your sleep. Start following a clear plan and experience better rest tonight with Protocol Zero. *in-app subscription is required to use the app EULA: http://www.apple.com/legal/itunes/appstore/dev/stdeula

About

Longevity AI App

Understand how your lifestyle impacts your biological aging. This app analyzes sleep, stress, metabolism, and habits to estimate your Bio Age and aging speed, offering personalized insights and routines to promote long-term health.

Highlights
  • Longevity assessment
  • Bio Age estimation
  • Aging speed analysis
  • Personalized insights
  • Daily routine guidance
  • Metabolic health tracking
  • Sleep optimization
Features
Read full description

HOW TO USE LONGEVITY AI: -Download the app -Complete the longevity assessment -Get your longevity analysis* Longevity AI helps you understand how your lifestyle affects your biological aging. By analyzing factors such as sleep, stress, metabolism, and daily habits, the app estimates your Bio Age and aging speed. Our goal is to help you build healthier habits and slow down biological aging over time. Longevity AI provides personalized insights, risk analysis, and daily routines designed to support your long-term health. We believe everyone deserves the opportunity to live a longer, healthier life. Longevity AI gives you the tools and guidance to start improving your health today. We are continuously expanding our longevity features, including metabolic health, stress reset, brain longevity, sleep optimization, and preventive care insights. If you have any questions or suggestions, please contact us at info@connectinno.com Longevity AI is designed to help you understand and improve your long-term health. NOTE: Longevity AI does not provide medical advice. All insights and recommendations are informational and should not replace professional medical consultation. Terms of Service: https://sites.google.com/view/termsofservice-longevityhealth Privacy Policy: https://sites.google.com/view/privacy-policy-longevityhealth

Screenshots

Protocol Zero4 screens
Longevity AI App4 screens

Verdict

The call

The clearest difference is monetization model: Longevity AI App at free with in-app purchases against Protocol Zero's subscription. Longevity AI App also leads on ads (none vs shown) and device support (3 vs 1). Protocol Zero's advantage is ratings volume (182 vs 2) and rating (4.7 vs 4.5). On price and in-app purchases 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. Protocol Zero sells 5 in-app purchases, starting at $12.99 per month and Longevity AI App sells 2 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Protocol Zero holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Protocol Zero has 182 ratings behind it against 2, so its average is the more settled of the two.

Scorecard6 real differences · 4 level
Protocol Zero versus Longevity AI App: the parameters behind the verdict, then further details
ParameterProtocol ZeroLongevity AI App
PriceFreeFree
Rating4.7 (182 ratings) — better4.5 (2 ratings)
Positive reviews66.7% of reviews—
Number of ratings182 — better2
Update frequencyEvery 4 days—
AdsYesNo — better
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.213.0 — better
Further details — not scored
Size123 MB89 MB
Age rating12+4+
DeveloperHumanOS LLCAziz Gundogdu

Customer experience

Protocol Zero

All ratings148 ratings
Positive98.0%
Neutral0.7%
Negative1.4%
Written reviews6 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

Longevity AI App

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

In-app purchases

5 purchases

Protocol Zero

Subscriptions5
  • Protocol Zero Monthly$12.991 Month
  • Protocol Zero Annual Starter$19.991 Year
  • Protocol Zero Annual$29.991 Year
Show 2 more
  • Protocol Zero Pro$39.991 Year
  • Protocol Zero Pro$59.991 Year
2 purchases

Longevity AI App

Subscriptions2
  • Longevity (Weekly)$5.997 Days
  • Longevity (Yearly)$39.991 Year

Questions

Is Protocol Zero free?
Protocol Zero is free to download, with in-app purchases available.
Is Longevity AI App free?
Longevity AI App is free to download, with in-app purchases available.
Which has better reviews, Protocol Zero or Longevity AI App?
Protocol Zero is rated higher. Protocol Zero averages 4.7 out of 5 from 182 ratings, while Longevity AI App averages 4.5 from 2 ratings.
Do Protocol Zero or Longevity AI App have ads?
Protocol Zero shows ads; Longevity AI App does not.

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