Comparison

Kalibra vs Longevity One Pro

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

Head to head
About

Kalibra

This app applies physical science methods to health, quantifying and analyzing markers through precise diagnostics and advanced data analysis. It integrates with Apple Health to guide users toward a balanced physical, mental, and social well-being.

Highlights
  • Precise diagnostic measurements
  • Advanced data analysis
  • Machine learning insights
  • Inferential statistics
  • Apple Health integration
  • Holistic health balance guidance
Read full description

Kalibra is built on applying the methods of physical sciences to healthβ€”quantifying and analysing health markers through precise diagnostic measurements, advanced data analysis methods, machine learning, and inferential statistics. Kalibra uses Apple Health integration to help you achieve a healthy balance between the physical, mental, and social aspects of your health by guiding your efforts towards where they are most needed. For monthly subscriptions providing access to premium features, we are using the standard Apple Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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/

Screenshots

Kalibra4 screens
Longevity One Pro4 screens

Verdict

The call

The clearest difference is update cadence: Longevity One Pro at every 6 days against Kalibra's every 2 weeks. Kalibra's advantage is iOS requirement (15.1 vs 17.6). On price, review sentiment, 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. Kalibra sells 1 in-app purchase, starting at $19.99 per month and Longevity One Pro sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Kalibra ships an update every 2 weeks, Longevity One Pro every 6 days. The most recent releases landed on October 13, 2026 and October 10, 2026 respectively.

Scorecard2 real differences Β· 6 level
Kalibra versus Longevity One Pro: the parameters behind the verdict, then further details
ParameterKalibraLongevity One Pro
PriceFreeFree
Positive reviews100.0% of reviews100.0% of reviews
Update frequencyEvery 2 weeksEvery 6 days β€” better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 β€” better17.6
Further details β€” not scored
Size63 MB244 MB
Age rating4+4+
DeveloperKalibraFetched Wellness Ltd

Customer experience

Kalibra

Written reviews9 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Longevity One Pro

Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Kalibra

Subscriptions1
  • Enhanced (monthly)$19.991 Month
2 purchases

Longevity One Pro

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

Questions

Is Kalibra free?
Kalibra is free to download, with in-app purchases available.
Is Longevity One Pro free?
Longevity One Pro is free to download, with in-app purchases available.
Do Kalibra or Longevity One Pro have ads?
Neither Kalibra nor Longevity One Pro shows ads.
Which is updated more often, Kalibra or Longevity One Pro?
Kalibra ships an update every 2 weeks, and Longevity One Pro every 6 days. Most recently, Kalibra was updated on October 13, 2026 and Longevity One Pro on October 10, 2026.

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