Comparison

Longevity One Pro vs Prism

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

Head to head
About

Longevity One Pro

This app translates longevity research into actionable daily habits. It uses lifestyle data, optional blood markers, and AI to estimate your health-span potential and guide you toward healthier choices. Track progress, store health documents, and gain AI-powered insights to add healthy years to your life.

Highlights
  • Longevity Score tracking
  • Lifestyle Age comparison
  • Biological Age calculation (blood tests)
  • AI Daily Insights and recommendations
  • Habit Builder & Tracker
  • Evidence-based lessons and quizzes
  • Trends dashboard
  • Apple Health sync
Features
Read full description

Add healthy years – starting today Longevity One turns cutting-edge longevity research into simple daily actions you can measure and master. By blending lifestyle data, optional blood-test markers and AI-powered guidance, the app shows your current health-span potential and the exact habits that move it in the right direction. It is an all in one solution to improve your healthspan, store your longevity related clinical documents, blood tests and unlock insights with the power of AI. Key numbers you’ll see β€’ Longevity Score – one shareable metric of overall health-span potential β€’ Lifestyle Age – how your daily choices compare with someone your calendar age β€’ Biological Age (blood) – enter core lab results and watch our PhenoAge-based model reveal your true underlying age How Longevity One helps β€’ AI Daily Insights – explains why your score rose or fell and suggests the next best step based on NHS and local UK guidelines and recommendations β€’ Habit Builder & Tracker – tick off proven micro-actions: steps, fasting window, sleep, mindfulness, veg intake and more β€’ Clinician-written lessons & quizzes – bite-sized, evidence-based learning with no jargon β€’ Beautiful trends dashboard – see weeks, months and years of progress at a glance β€’ Apple Health sync – secure, on-device integration; no extra wearables required What’s free β€’ Personal Longevity Score & lifestyle dashboard β€’ Upload one clinical document or blood test results and get an AI Summary β€’ Unlimited habit tracking (steps, sleep, fasting, mood, etc.) β€’ One-off Biological Age calculation with smart range validation β€’ Daily longevity tip graded A–D for scientific strength β€’ Starter pack of clinician-written lessons and quizzes β€’ End-to-end encrypted HealthKit integration Upgrade to Longevity One + and unlock β€’ Unlimited Biological-Age recalculations – update results whenever your blood markers change β€’ Interactive trend graphs – track Biological Age, Longevity Score and individual biomarkers over time β€’ Full AI Daily Insights – personalised guidance refreshed after every Daily Check-In β€’ Securely upload unlimited clinical documents with your previous scan results, VO2 Max, Dexa, etc., prescriptions and blood test results and save an AI Summary of what they mean. β€’ Complete lesson & quiz library – deep dives on sleep, nutrition, stress, supplements and more β€’ Priority support and feature voting – help shape the app’s future Annual plan includes a 7-day free trial. Cancel any time in Settings at least 24 h before renewal. Your privacy, our priority All calculations run locally or in your private iCloud. Your data is never sold, shared or used for advertising. Ready to add life to your years? Download Longevity One and start building healthier decades today. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://mylongevitycentre.co.uk/longevity-app-privacy-policy/

About

Prism

Features
Read full description

Prism is an elegant utility that transforms your daily sunlight exposure into a journey of discovery. By syncing seamlessly with your Apple Watch, Prism helps you balance your light intake and well-being effortlessly. Key Features 1 Seamless Apple Watch Integration. Automatically syncs Time in Daylight using Apple Watch ambient light sensors for a hands-free tracking experience. 2 Dynamic iPhone Widgets. Stay connected with beautiful Home Screen and Lock Screen widgets that show your progress at a glance. 3 Spirit Evolution. Your sunlight data nourishes unique Spirits. Unlock various visual forms as they evolve based on your daily activity. 4 Environmental Insights. View real-time local UV Index and sunset data to plan your outdoor day safely. 5 Secure HealthKit Sync. Prism integrates deeply with the Apple Health app to store and visualize your light exposure data securely. Disclaimer. All data is for informational purposes only. Please consult a professional before making health decisions. information about the auto-renewable nature of the Premium Subscription: Subscription period: 1 month. Price: $1.99 per month (or local equivalent). Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. Terms of Use (EULA): [https://superficial-restaurant-956.notion.site/Privacy-Policy-2f3f52245d5580b1ae9ac299a0408cff?source=copy_link]. Privacy Policy: [https://superficial-restaurant-956.notion.site/Terms-of-Use-EULA-2f3f52245d558073aa26f42eb6149f80?source=copy_link].

Screenshots

Longevity One Pro4 screens
Prism4 screens

Verdict

The call

The clearest difference is iOS requirement: Longevity One Pro at 17.6 against Prism's 26.0. On price, update cadence, ads and in-app purchases 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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Longevity One Pro sells 2 in-app purchases, starting at $9.99 per month and Prism sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Longevity One Pro ships an update every 6 days, Prism every 11 days. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

Scorecard1 real difference Β· 7 level
Longevity One Pro versus Prism: the parameters behind the verdict, then further details
ParameterLongevity One ProPrism
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
Update frequencyEvery 6 days β€” betterEvery 11 days
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumβ€”
DevicesiPhone, iPadiPhone, iPad, Apple Watch β€” better
Requires iOS17.6 β€” better26.0
Further details β€” not scored
Size244 MB3 MB
Age rating4+4+
DeveloperFetched Wellness Ltdε‰‘η‚œ ι™ˆ

In-app purchases

2 purchases

Longevity One Pro

Subscriptions2
  • Longevity One Pro Plan$9.991 Month
  • Annnual Subscription7 Days trial$99.991 Year
1 purchases

Prism

Subscriptions1
  • Prism Premium (Monthly)1 Month trial$1.991 Month

Questions

Is Longevity One Pro free?
Longevity One Pro is free to download, with in-app purchases available.
Is Prism free?
Prism is free to download, with in-app purchases available.
Do Longevity One Pro or Prism have ads?
Neither Longevity One Pro nor Prism shows ads.
Which is updated more often, Longevity One Pro or Prism?
Longevity One Pro ships an update every 6 days, and Prism every 11 days. Most recently, Longevity One Pro was updated on September 23, 2026 and Prism on September 24, 2026.

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