Sereno vs Longevity Arc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sereno
This app uses AI to monitor your stress levels by analyzing data from your Apple Watch and Health app. It tracks HRV, sleep, recovery, and activity to provide real-time insights and AI-driven explanations for changes in your body. Guided breathing exercises are available for moments of high stress.
- AI stress monitoring
- HRV, sleep, and recovery tracking
- Real-time stress pattern analysis
- AI-driven explanations for body changes
- Guided breathing exercises
- Weekly stress trend reports
- Doctor-ready summaries
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Sereno is an AI stress monitor for Apple Watch and Apple Health. Track stress, HRV, heart rate, sleep, recovery, activity and breathing patterns in one place, then see what may be changing your body in real time. Stress is rarely one signal. Sereno reads 20+ signals across Apple Watch, Health, sleep, recovery, heart rate, resting heart rate, HRV, steps, workouts, context and long-term change to build a clearer stress picture. USE SERENO TO: - Track live stress and recovery patterns - Understand HRV, heart rate, sleep and activity trends - Catch sudden stress spikes earlier - See AI explanations for what changed - Use guided breathing when your body needs a reset - Review weekly stress trends and recovery patterns - Create doctor-ready summaries you can share - Follow your personal baseline as Sereno learns your normal range WHY PEOPLE USE SERENO Real-time stress monitoring Sereno helps you notice stress while it is happening, not only after the day is over. Apple Watch and Health insights Connect Apple Watch and Apple Health to turn HRV, heart rate, resting heart rate, sleep, steps and workouts into readable stress signals. AI stress explanations Sereno turns your physiology into plain-language insights, showing what changed, what may be driving the shift and what to try next. Anxiety and panic support moments When stress rises quickly, Sereno can surface a calmer next step with breathing and recovery guidance. Weekly reports See how stress, HRV, recovery, sleep and activity moved across the week, so patterns become easier to understand. Doctor-ready summaries Generate concise reports for appointments or personal tracking when you want a clearer view of your stress history. BUILT AROUND YOUR BASELINE Generic stress scores miss context. Sereno learns your personal baseline over time, so changes are compared against your own body instead of a one-size-fits-all number. BUILT FOR PRIVACY Sereno is designed for personal health reflection. You choose what to connect and what to share. SUBSCRIPTION Sereno offers optional premium access for deeper AI insights, weekly reports, doctor-ready summaries and advanced stress tracking features. Subscription details are shown in the app before purchase. IMPORTANT Sereno is not a medical device and does not diagnose, treat or prevent medical conditions. If you are experiencing severe anxiety, chest pain, thoughts of self-harm or a medical emergency, contact local emergency services or a qualified clinician. Terms of Use: https://serenoai.app/terms Privacy Policy: https://serenoai.app/privacy
Longevity Arc
Consolidates your Apple Health data into five key longevity signals, offering a clear dashboard for tracking HRV, fitness, sleep, gait, and cardiac load trends. Understand your body's long-term trajectory and make informed decisions about your health.
- Five longevity signals from Apple Health
- HRV, fitness, sleep, gait, cardiac load tracking
- Simple dashboard for trend analysis
- Understand long-term health trajectory
- Private, HealthKit-powered experience
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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
Verdict
The clearest difference is review sentiment: Sereno at 100% against Longevity Arc's 0%. Sereno also leads on update cadence (daily vs every 3 days). Longevity Arc's advantage is iOS requirement (15.1 vs 17.6). 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
Both are free to download. Sereno sells 3 in-app purchases, starting at $3.99 per 7 days 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.
Sereno ships an update daily, Longevity Arc every 3 days. Both last shipped on October 31, 2026.
| Parameter | Sereno | Longevity Arc |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Daily — better | Every 3 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, Apple Watch | iPhone, iPod, Apple Watch — better |
| Requires iOS | 17.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 27 MB | 40 MB |
| Age rating | 12+ | 4+ |
| Developer | BARBAROS SELIM BUYUKELCI | Radoslaw Jozefowicz |
Customer experience
Sereno
Longevity Arc
In-app purchases
Sereno
- Sereno Premium7 Days trial$3.997 Days
- Sereno Premium7 Days trial$7.991 Month
- Sereno Premium (Annual)7 Days trial$39.991 Year
Longevity Arc
- Monthly Pro3 Days trial$2.991 Month
- Lifetime Pro$8.99









