Comparison

Optitrainer vs U

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

Head to head
About

Optitrainer

Features
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Optitrainer is the app dedicated to athletes, completely free. Your coach creates your access from the web platform at www.optitrainer.fr. You can access your training tracking directly on your phone, whether your goals are health-focused or performance-driven. View the sessions prepared by your coach See the details of each exercise selected by your coach Share how you feel so your coach can adjust your training based on your sensations Complete your tests or questionnaires Sync your training data from your connected watch or Strava Visualize your progress week after week Analyze your training data Chat with your coach through instant messaging (with notifications) No more scattered programs: your sessions, your tests and your progress are all in one place, clear and accessible whenever you need them. Download the app, your coach takes care of the rest. And if your coach doesn't know Optitrainer yet, it's not too late to tell them about it.

About

U

This app connects personal trainers with their clients, offering tools for program creation, progress tracking, and payment processing. Coaches can manage clients, share content, and monitor performance, while clients can easily follow their training plans and track their evolution.

Highlights
  • Client management
  • Personalized program creation
  • Exercise video library
  • Progress tracking
  • In-app payments
  • Private client space
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U-Coach - By coaches, for coaches. The number 1 app for sports coaches and their clients. COACHES: - Instantly access a complete list of your clients, former clients, and prospects. - Create personalized programs for your clients or your own templates to save time. - Import your own exercise videos, YouTube links, or use the U-Coach library. - Track your clients' progress: sessions, body evolution, performance, etc. - Accept payments directly through the app. - Share with your clients via a dedicated private space. CLIENTS: - Easily follow your program and sessions through the U-Coach app. - Track your progress over the days.

Screenshots

Optitrainer4 screens
U4 screens

Verdict

The call

The clearest difference is update cadence: U at weekly against Optitrainer's every 3 weeks. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Optitrainer ships an update every 3 weeks, U weekly. The most recent releases landed on September 29, 2026 and October 9, 2026 respectively.

Scorecard1 real difference · 9 level
Optitrainer versus U: the parameters behind the verdict, then further details
ParameterOptitrainerU
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.115.1
Further details — not scored
Size41 MB21 MB
Age rating4+4+
DeveloperOptitrainerAdrien CHOUTEAU

In-app purchases

None

Optitrainer

No in-app purchases

None

U

No in-app purchases

Questions

Is Optitrainer free?
Optitrainer is free to download, with no in-app purchases.
Is U free?
U is free to download, with no in-app purchases.
Do Optitrainer or U have ads?
Neither Optitrainer nor U shows ads.
Which is updated more often, Optitrainer or U?
Optitrainer ships an update every 3 weeks, and U weekly. Most recently, Optitrainer was updated on September 29, 2026 and U on October 9, 2026.

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