Comparison

P.R.O. vs Sereno

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

Head to head
About

P.R.O.

This app transforms your Apple Health data into actionable insights and personalized training plans. It integrates with popular AI assistants to answer questions about your workouts and offers detailed analytics to help you understand and improve your fitness performance over time.

Highlights
  • AI-powered workout analysis
  • Personalized training plans
  • Integration with AI assistants (ChatGPT, Claude, Grok)
  • Detailed performance charts and reports
  • Multi-sport tracking
  • Goal setting and progress tracking
  • Home Screen widgets
Features
Read full description

Level up your training with P.R.O. - the fitness app that turns your Apple Health data into clear insights, a plan for today, and answers from the AI you already use. Whether you run, ride, or train across multiple sports, P.R.O. helps you understand your performance, spot trends, and improve with precision. Your training, inside any AI Connect Claude, ChatGPT, Grok, or Perplexity. Ask about your workouts, sleep, and goals. You choose what each assistant can see. Suggested plan changes wait until you accept them in P.R.O. Your AI fitness coach P.R.O.'s own coach answers from your real workout data. Detailed, context-aware chat Insights from your full fitness history Tables, charts, and diagrams in the reply Personalized training guidance Instant breakdowns of your performance, progress, and goals What to train today A plan that sits next to your sleep, your load, and the work you already did. Today's session, plus a Home Screen widget so the plan stays in sight Sleep score next to the training that used it Progress that updates from your real activity See your data like never before Charts and reports that make a long training history easy to read. Interactive charts across days, months, and years Comparisons by pace, heart rate, distance, and more Clear breakdowns of progress and patterns Deep analytics across your entire history Go beyond a single workout. See how your fitness changes over time. Full Apple Health history Long-term trends across your key metrics Breakthroughs, plateaus, and what to do next Detailed multi-sport tracking Every workout matters. P.R.O. captures and analyzes your activities in one place. Running, cycling, swimming, walking, hiking, and more Automatic sync via Apple Health Pace, heart rate, cadence, elevation, calories, and power GPS routes with performance overlays Smarter goals and progress tracking Stay consistent with structured goals and real-time feedback. Goals for distance, duration, calories, or sessions Live progress and visual indicators Flexible timelines and adaptive targets Build consistency with streaks Turn training into a habit. Daily streaks with milestone targets Achievements, rewards, and progress markers Updates when it matters Track records and achievements Measure your best performances and see how you improve. Automatic personal records All-time, yearly, and monthly comparisons A history of achievements by sport Monthly and yearly insights See the bigger picture. Summaries of distance, time, calories, and elevation Activity breakdowns by sport Month-over-month and year-over-year comparisons Highlighted personal bests Home Screen widgets Keep the numbers you care about in sight: dashboard, streak, goals, activity, and plan status. Perfect for Athletes who want answers backed by their own data People who already train with Claude, ChatGPT, or Grok Multi-sport users syncing everything through Apple Health Train smarter with P.R.O. — your coach, your history, and the assistant you choose. View the standard Apple End User License Agreement (EULA) here: www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

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.

Highlights
  • 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
Features
Read full description

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

Screenshots

P.R.O.4 screens
Sereno4 screens

Verdict

The call

The clearest difference is review sentiment: Sereno at 100% against P.R.O.'s 50%. Sereno also leads on update cadence (daily vs every 5 days). 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. P.R.O. sells 6 in-app purchases, starting at $2.99 per month and Sereno sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

P.R.O. ships an update every 5 days, Sereno daily. The most recent releases landed on November 12, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
P.R.O. versus Sereno: the parameters behind the verdict, then further details
ParameterP.R.O.Sereno
PriceFreeFree
Rating3.7 (3 ratings) — better—
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings3 — better—
Update frequencyEvery 5 daysDaily — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS18.517.6 — better
Further details — not scored
Size134 MB27 MB
Age rating4+12+
DeveloperHAOTONG TECHNOLOGY (HK) CO., LIMITEDBARBAROS SELIM BUYUKELCI

Customer experience

P.R.O.

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Sereno

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

In-app purchases

6 purchases

P.R.O.

Subscriptions6
  • Pro (1 month)$2.991 Month
  • Pro+ (1 month)$3.991 Month
  • Premium (1 month)$5.991 Month
Show 3 more
  • Pro$29.991 Year
  • Pro+$39.991 Year
  • Premium$59.991 Year
3 purchases

Sereno

Subscriptions3
  • Sereno Premium7 Days trial$3.997 Days
  • Sereno Premium7 Days trial$7.991 Month
  • Sereno Premium (Annual)7 Days trial$39.991 Year

Questions

Is P.R.O. free?
P.R.O. is free to download, with in-app purchases available.
Is Sereno free?
Sereno is free to download, with in-app purchases available.
Do P.R.O. or Sereno have ads?
Neither P.R.O. nor Sereno shows ads.
Which is updated more often, P.R.O. or Sereno?
P.R.O. ships an update every 5 days, and Sereno daily. Most recently, P.R.O. was updated on November 12, 2026 and Sereno on October 31, 2026.

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