Comparison

Delta X Coach vs Synchro.

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

Head to head
About

Delta X Coach

This app offers intelligent strength training and wellbeing programs designed by an expert in neuroscience and psychology. It focuses on educating users about their bodies for sustainable results, building physical strength, and enhancing mental resilience without leading to burnout.

Highlights
  • Smart strength training
  • Nervous-system-aware coaching
  • Educational content
  • Sustainable results system
  • Progress tracking
  • Offline sync
Features
Read full description

Most fitness apps tell you what to do. Delta X Coach teaches you how your body actually works. Built by a coach with expertise in neuroscience, psychology, and strength training, Delta X Coach delivers intelligent programming designed to build physical strength, mental resilience, and long-term health. Expect: • Smart strength training for real bodies • Nervous-system-aware coaching for performance and recovery • Education that removes fear, confusion, and extremes • A system that supports sustainable results — not burnout This is training for people who want clarity, capability, and control. Delta X Coach — train with intelligence. INFORMATION ABOUT THE APP AND PURCHASE OPTIONS By signing up, you will get access to subscription(s) that include features such as progress tracking, and offline sync. The download of Delta X Coach is free of charge. Should you use Delta X Coach app to access in-app content via available one-time purchase(s), a payment will be charged to your credit card once. Read our full Terms of Service and our Privacy Policy: https://passion.io/terms-of-service https://passion.io/privacy-policy INFORMATION ABOUT THE APP AND PURCHASE OPTIONS By signing up, you will get access to subscription(s) that include features such as progress tracking, and offline sync. The download of Delta X Coach is free of charge. Should you use Delta X Coach app to access in-app content via available one-time purchase(s), a payment will be charged to your credit card once. Read our full Terms of Service and our Privacy Policy: https://passion.io/terms-of-service https://passion.io/privacy-policy

About

Synchro.

This platform connects athletes, staff, and parents in a unified system for managing health and schedules. Athletes can track workouts, log nutrition, and schedule appointments, while staff can manage records and monitor health. Parents can stay updated on their athlete's activities and health information.

Highlights
  • Workout tracking
  • AI-powered nutrition logging
  • Health form completion
  • Appointment scheduling
  • Secure messaging
  • Video calls
  • Real-time calendar sync
Features
Read full description

Synchro is a mobile platform that connects athletes, staff members, and parents in one unified system. Athletes can track workouts, log nutrition with AI-powered food recognition, complete health forms, and schedule appointments with video calling. Staff members can manage patient records, communicate securely, and monitor athlete health. Parents can stay informed about their athlete's schedule, appointments, and health information. The platform features secure messaging, video calls, real-time calendar synchronization, and voice-to-text nutrition logging, all designed to streamline communication and health management across athletic organizations.

Screenshots

Delta X Coach4 screens
Synchro.4 screens

Verdict

The call

The clearest difference is in-app purchases: Synchro. at none against Delta X Coach's 14. Synchro. also leads on ads (none vs shown) and update cadence (every 4 days vs every 6 weeks). On price, rating, ratings volume and device support 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. Delta X Coach sells 12 one-off in-app purchases. Synchro. asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Delta X Coach against 5.0 for Synchro.. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Delta X Coach ships an update every 6 weeks, Synchro. every 4 days. The most recent releases landed on September 17, 2026 and September 19, 2026 respectively.

Scorecard4 real differences · 6 level
Delta X Coach versus Synchro.: the parameters behind the verdict, then further details
ParameterDelta X CoachSynchro.
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings11
Update frequencyEvery 6 weeksEvery 4 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.0
Further details — not scored
Size102 MB222 MB
Age rating4+12+
DeveloperJanis BlumsTrevor Petrucci

Customer experience

Delta X Coach

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews23 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Synchro.

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

12 purchases

Delta X Coach

One-time12
  • Protein muscle guidebook$9.99
  • One Time Subscription$12.99
  • Running for non-runners$18.99
Show 9 more
  • Model Workouts$19.90
  • One Time Subscription3 variants$19.99
  • Holiday workouts$19.99
  • Recipes with Cecile$21.99
  • Roll, recover and relax$31.99
  • One Time Subscription$39.99
  • One Time Subscription$59.99
  • Strong with Sunni$59.99
  • Premium Package Special$129.99
None

Synchro.

No in-app purchases

Questions

Is Delta X Coach free?
Delta X Coach is free to download, with in-app purchases available.
Is Synchro. free?
Synchro. is free to download, with no in-app purchases.
Which has better reviews, Delta X Coach or Synchro.?
Delta X Coach and Synchro. are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Delta X Coach or Synchro. have ads?
Delta X Coach shows ads; Synchro. does not.
Which is updated more often, Delta X Coach or Synchro.?
Delta X Coach ships an update every 6 weeks, and Synchro. every 4 days. Most recently, Delta X Coach was updated on September 17, 2026 and Synchro. on September 19, 2026.

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