Comparison

Longevity Biomarkers vs Steddy

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

Head to head
About

Longevity Biomarkers

Understand and manage your health and aging by tracking personalized longevity biomarkers. Discover your biological age and receive insights to optimize your well-being. Integrates with Apple Health for comprehensive tracking.

Highlights
  • Biological age estimation
  • Personalized longevity biomarkers
  • Apple Health integration
  • Test reminders
  • Health tips and scientific studies
  • Tracking results over time
Features
Read full description

Longevity Biomarkers App helps you understand and manage your health and aging through a set of personalized longevity-related biomarkers. Do simple tests, add results to the App, and our algorithms will determine your personalized optimal values for each biomarker. Additionally, you will discover your biological age and see how old your body really is. Add your test results to the App, and our real-time algorithm will estimate your biological age. With more data and time, algorithm accuracy improves. Keep an eye on your biological age. The younger you biologically are, the better. Features: Biological age Longevity management with more than 20 personalized health indicators Results personalized for your age, gender, and other available data Easy to understand, color-coded statuses Health tips Scientific studies Personalized insights Apple Health integration Test reminders Personal exercise zones Tracking results over time Biomarkers: BMI Body Fat Visceral Fat HRV Cardio Fitness Vitamin D Skeletal Muscle Reaction Speed Functional Fitness Chronic Inflammation Blood Pressure Orthostatic Blood Pressure Strength Balance Flexibility Resting Heart Rate Hearing A1C Apo B IGF-1 Albumin Cystatin C Peripheral Artery Status TESTS Tests specified in the App are not diagnostic. If your test results fall beyond the expected range, consider rechecking the test procedure and repeating the test. If you have any concerns, please consult a healthcare professional. HEALTH TIPS Content of the Health Tips section for each biomarker is created and published for informational purposes only. It is not advice, a guarantee of an outcome, or a substitute for the information provided by a qualified healthcare professional. Always consult a healthcare professional before using any product, practice, treatment, or starting a new healthcare regimen, including diet and exercise. SCIENTIFIC STUDIES Relevant scientific studies are available in the Science section of each biomarker. Studies are listed only to provide more information about the subject and do not endorse or suggest any product or practice. Please note that most scientific studies typically produce only associations, require further investigation, and may not be approved by governing health authorities. Please consider scientific studies only as additional material for further reading about the subject. PERSONAL INSIGHTS Content available in the personal insights section is not medical advice, and it should not be used for diagnosis, treatment, or as a replacement for the opinion of a qualified healthcare professional. Never use information from the App to make medical decisions, and always consult a healthcare professional if you have any concerns. SUBSCRIPTION & PRICING The App is free to download and use. It also offers full access to all features through Premium Monthly Subscription at $6.99 and Premium Annual Subscription at $49.99. Subscription payment is charged to iTunes Account at confirmation of the purchase. Premium Subscription plan automatically renews unless the auto-renew feature is turned off in the Account Settings, at least 24 hours before the end of the active subscription period. Privacy policy: https://longevitybiomarkers.com/privacy-policy/ Terms of use: https://longevitybiomarkers.com/terms-and-conditions/ If you have any questions, please get in touch with us at support@longevitybiomarkers.com

About

Steddy

Plan your week, track your progress, and build healthy habits. This app helps you stay consistent with your goals through activity tracking, notes, and insightful data visualizations.

Highlights
  • Weekly planning
  • Streak tracking
  • Activity history
  • Workout notes
  • Data visualizations
Features
Read full description

· Create a plan for your next week in minutes · Track your streaks and full activity history · Add notes to remember your favorite workouts · Enjoy beautiful data visualizations

Screenshots

Longevity Biomarkers4 screens
Steddy4 screens

Verdict

The call

The clearest difference is rating: Steddy at 4.8 against Longevity Biomarkers's 3.9. Steddy also leads on review sentiment (80% vs 50%) and update cadence (every 10 days vs every 3 months). On price, ads, in-app purchases and monetization model 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. Longevity Biomarkers sells 3 in-app purchases, starting at $6.99 per month and Steddy sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Steddy holds the better App Store score, 4.8 against 3.9. That said, the two scores are not equally well evidenced: Steddy has 87 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 50% of Longevity Biomarkers's written reviews are positive against 80% of Steddy's.

UpkeepUpdate frequency

Longevity Biomarkers ships an update every 3 months, Steddy every 10 days. Both last shipped on November 3, 2026.

Scorecard4 real differences · 6 level
Longevity Biomarkers versus Steddy: the parameters behind the verdict, then further details
ParameterLongevity BiomarkersSteddy
PriceFreeFree
Rating3.9 (12 ratings)4.8 (87 ratings) — better
Positive reviews50.0% of reviews80.0% of reviews — better
Number of ratings1287 — better
Update frequencyEvery 3 monthsEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS14.013.0 — better
Further details — not scored
Size17 MB54 MB
Age rating12+4+
DeveloperLongevity Biomarkers LLCLight Nudge

Customer experience

Longevity Biomarkers

All ratings12 ratings
Positive66.7%
Neutral8.3%
Negative25.0%
Written reviews6 reviews
Positive50.0%
Neutral16.7%
Negative33.3%

Steddy

All ratings84 ratings
Positive98.8%
Neutral1.2%
Negative0.0%
Written reviews25 reviews
Positive80.0%
Neutral4.0%
Negative16.0%

In-app purchases

3 purchases

Longevity Biomarkers

Subscriptions3
  • Premium Monthly Plan$6.991 Month
  • Premium Quarterly Plan$15.993 Months
  • Premium Annual Plan$49.991 Year
2 purchases

Steddy

Subscriptions2
  • Steddy Monthly$2.991 Month
  • Steddy Annual7 Days trial$20.001 Year

Questions

Is Longevity Biomarkers free?
Longevity Biomarkers is free to download, with in-app purchases available.
Is Steddy free?
Steddy is free to download, with in-app purchases available.
Which has better reviews, Longevity Biomarkers or Steddy?
Steddy is rated higher. Longevity Biomarkers averages 3.9 out of 5 from 12 ratings, while Steddy averages 4.8 from 87 ratings.
Do Longevity Biomarkers or Steddy have ads?
Neither Longevity Biomarkers nor Steddy shows ads.
Which is updated more often, Longevity Biomarkers or Steddy?
Longevity Biomarkers ships an update every 3 months, and Steddy every 10 days. Most recently, Longevity Biomarkers was updated on November 3, 2026 and Steddy on November 3, 2026.

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