Comparison

EndureIndex vs Longevity Arc

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

Head to head
About

EndureIndex

Features
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Ready to train โ€” or is recovery the smarter choice today? EndureIndex helps you better understand your daily readiness and plan your training more consciously. The app uses data from Apple Health and turns it into clear signals for readiness, training load, recovery and endurance development. This helps you see more clearly whether your body is ready for training, whether light movement would be a better option, or whether you should give your recovery more space. What EndureIndex offers: โ€ข Readiness Score for your current daily condition โ€ข Endurance Score for your endurance development โ€ข Training load, recovery and trends at a glance โ€ข Analysis of HRV, resting heart rate, sleep, steps and workouts โ€ข Weather and environmental load, where available โ€ข Clear insights instead of raw data only โ€ข Goal focus for fitness, fat loss, weight maintenance, more energy, consistency and movement โ€ข Apple Watch app and widgets โ€ข Support for English and German Why EndureIndex? Not every day is the same. Sometimes your body is ready for an intense workout, sometimes light movement or recovery is the smarter choice. EndureIndex helps you better understand important signals from Apple Health and use them to make more conscious decisions about training and recovery. EndureIndex Pro With EndureIndex Pro, you get advanced analyses, longer trend histories, deeper insights into training load and recovery, goal evaluations, correlations and additional premium features. Privacy EndureIndex uses Apple Health data only with your permission. Your data stays on your device and is not used for tracking or advertising. Location data is only used with your permission to include weather-related load factors. Disclaimer EndureIndex is not a medical app and does not replace medical advice. The analyses are intended for personal orientation around training, recovery and fitness. Privacy Policy: https://danilo-krautz.de/privacy-endureindex/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Longevity Arc

Features
Read full description

Longevity Arc turns your Apple Health data into five clear longevity signals. Instead of digging through scattered charts, you can see HRV, fitness, sleep, gait, and cardiac load together in one simple dashboard designed to help you understand how your body is trending over time. Built for people who care about healthspan, recovery, and long-term performance, Longevity Arc helps you spot changes faster and focus on the metrics that matter most. The app is designed to feel simple at a glance while still giving you useful depth when you want to explore trends and patterns. What you can do in Longevity Arc: - Track five science-inspired longevity signals from Apple Health in one place. - Review your HRV, sleep, fitness, gait, and cardiac-load trends without jumping between different screens. - Get a clearer picture of how daily habits may affect your long-term trajectory. - Use a private, HealthKit-powered experience built around your own data. Why people use Longevity Arc: - Apple Health already contains valuable signals, but they are often fragmented and hard to interpret quickly. - Longevity Arc brings those signals together into a more readable view so you can check your status in seconds. - The focus is not noise or endless scores - it is a cleaner way to monitor meaningful change over time. Privacy and data: - Longevity Arc works with your Apple Health data. - You stay focused on your own signals, trends, and progress. Ideal for: - Biohackers tracking recovery and resilience. - Health-conscious users who want a simpler Apple Health dashboard. - Founders, athletes, and everyday users trying to balance stress, fitness, and sleep over time. Privacy Policy: https://longevityarc.app/privacy Terms of Use: https://longevityarc.app/terms

Screenshots

EndureIndex4 screens
Longevity Arc4 screens

Verdict

The call

The clearest difference is update cadence: Longevity Arc at every 3 days against EndureIndex's every 3 weeks. Longevity Arc also leads on iOS requirement (15.1 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. EndureIndex sells 2 in-app purchases, starting at $1.99 per month and Longevity Arc sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

EndureIndex ships an update every 3 weeks, Longevity Arc every 3 days. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.

Scorecard2 real differences ยท 4 level
EndureIndex versus Longevity Arc: the parameters behind the verdict, then further details
ParameterEndureIndexLongevity Arc
PriceFreeFree
Update frequencyEvery 3 weeksEvery 3 days โ€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, Apple WatchiPhone, iPod, Apple Watch โ€” better
Requires iOS26.015.1 โ€” better
Further details โ€” not scored
Size8 MB40 MB
Age rating4+4+
DeveloperDanilo KrautzRadoslaw Jozefowicz

In-app purchases

2 purchases

EndureIndex

Subscriptions2
  • EndureIndex Pro Monthly$1.991 Month
  • EndureIndex Pro Yearly7 Days trial$14.991 Year
2 purchases

Longevity Arc

Subscriptions1
  • Monthly Pro3 Days trial$2.991 Month
One-time1
  • Lifetime Pro$9.99

Questions

Is EndureIndex free?
EndureIndex is free to download, with in-app purchases available.
Is Longevity Arc free?
Longevity Arc is free to download, with in-app purchases available.
Do EndureIndex or Longevity Arc have ads?
Neither EndureIndex nor Longevity Arc shows ads.
Which is updated more often, EndureIndex or Longevity Arc?
EndureIndex ships an update every 3 weeks, and Longevity Arc every 3 days. Most recently, EndureIndex was updated on October 3, 2026 and Longevity Arc on October 7, 2026.

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