Comparison

54D On vs DeyrFit

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

Head to head
About

54D On

This program offers an online human transformation experience designed to help users break mental barriers and achieve significant physical and emotional results in just 54 days. It provides structured training, nutrition guidance, recovery support, and community interaction.

Highlights
  • High Intensity Online Training
  • Nutrition Management
  • Recovery Support
  • Real-time Coach Messaging
  • Workout Tracking & Scheduling
  • Progress Monitoring
  • Wearable Device Integration
Features
Read full description

54D ON is a digital personalized training platform that brings together exercise, nutrition, and wellness in one place. Unlike other apps, you never train alone. Every user is supported by a real coach who guides you, motivates you, and provides daily personalized follow-up. Your coach designs a 360° plan tailored to your level, goals, and lifestyle. Train anytime, anywhere, with access to dozens of On-Demand programs and live workouts including strength, cardio, mobility, Pilates, yoga, and wellness. You also receive nutrition plans and tools designed to support your energy, focus, and consistency. Everything is built to adapt to you, your pace, and your life. Train when you want, where you want. When you join the 54D ON family, you’re never training alone. Note regarding Apple Health: The app integrates with Apple Health to show your daily activity - distance, steps, active energy, and flights to help you better achieve your goals. App also uses Apple Health to track energy burned and heart rate during a workout session, if an Apple Watch is used. Workout metrics are shared with the coach to better design your workout schedule. DISCLAIMER: Users should seek a doctor’s advice before using this app and making any medical decisions.

About

DeyrFit

Features
Read full description

DeyrFit convierte los datos de tu Apple Watch en decisiones inteligentes para tu día. Cada mañana sabes exactamente cómo está tu cuerpo: qué tan recuperado estás, cuánto esfuerzo pusiste ayer, cómo dormiste y qué tan estresado está tu sistema nervioso. Sin adivinar. Sin interpretar números solos. -Recuperación inteligente Un score diario basado en tu HRV, frecuencia cardíaca en reposo y sueño. Sabes cuándo entrenar fuerte y cuándo descansar. -Nutrición con IA Describe lo que comiste en texto o toma una foto — DeyrFit analiza tus macros automáticamente. Sin buscar alimentos en bases de datos interminables. -Coach DEYR Un asistente con IA que conoce tus métricas del día. Te da contexto, te motiva y responde tus dudas sobre entrenamiento, recuperación y nutrición. -Entrenamientos reales Historial completo de tus sesiones con duración, calorías y esfuerzo calculado. Ve tu semana de un vistazo. Requiere Apple Watch para acceder a métricas de salud en tiempo real.

Screenshots

54D On4 screens
DeyrFit4 screens

Verdict

The call

The clearest difference is update cadence: DeyrFit at every 11 days against 54D On's every 2 months. 54D On's advantage is iOS requirement (15.0 vs 17.0). 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

54D On ships an update every 2 months, DeyrFit every 11 days. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
54D On versus DeyrFit: the parameters behind the verdict, then further details
Parameter54D OnDeyrFit
PriceFreeFree
Rating4.9 (1.8K ratings) — better—
Positive reviews83.0% of reviews—
Number of ratings1.8K — better—
Update frequencyEvery 2 monthsEvery 11 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, Apple Watch
Requires iOS15.0 — better17.0
Further details — not scored
Size134 MB4 MB
Age rating17+4+
DeveloperCoral GPY Gables LLCSergio Freyre

Bugs and requests

54D On

Reported bugs

2 issues
  • App issues with IP changes and travel
  • Occasional login and connectivity problems

Requested features

2 requests
  • More nutrition guidance and education
  • Improved music integration

DeyrFit

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

54D On

No in-app purchases

None

DeyrFit

No in-app purchases

Questions

Is 54D On free?
54D On is free to download, with no in-app purchases.
Is DeyrFit free?
DeyrFit is free to download, with no in-app purchases.
Do 54D On or DeyrFit have ads?
Neither 54D On nor DeyrFit shows ads.
Which is updated more often, 54D On or DeyrFit?
54D On ships an update every 2 months, and DeyrFit every 11 days. Most recently, 54D On was updated on November 3, 2026 and DeyrFit on October 24, 2026.

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