Comparison

Kaizer vs Bunker Coaching

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

Head to head
About

Kaizer

This app centralizes your fitness journey, connecting you with your trainer or gym. Track workouts, book classes, chat with your coach, and monitor progress, all within a single platform. It also offers AI-generated workout plans for independent users.

Highlights
  • Connect with your trainer or gym
  • Book classes and reserve spots
  • Track detailed workout progress
  • AI-generated personalized workout plans
  • Exercise illustrations and smart replacements
  • Direct chat with trainer
  • Nutrition plan integration
Features
Read full description

Kaizer is the app where you train with your trainer or your gym: your routine, your classes, the chat and your progress, all in one place. WITH YOUR GYM If your gym runs on Kaizer, you join with the link they share and see the app with their name, logo and color. Book your classes or keep a fixed spot, read your gym's news and train with the routine they assign you. WITH YOUR TRAINER Your trainer sends you your routines, follows your progress, adjusts whatever needs adjusting, chats with you and asks for form videos. All of it in one place, without leaning on three other apps. NO TRAINER YET? Browse the marketplace inside the app. Every profile shows how that coach works, their specialties and whether they train online, in person or both. Subscribe to the one that fits and they are notified the moment you join. YOUR SESSIONS, IN DETAIL Sets, reps, load, rest. Supersets, circuits and dropsets when your plan calls for them. Every exercise ships with an illustration of the muscle it works, so you know what you are aiming at before you lift. ASSISTED PROGRESSION Week over week, Kaizer writes the loads of your upcoming sessions from what you actually lifted. You always know what to do when you walk into the gym, and the weight on the bar keeps moving. SMART REPLACE Machine taken? A movement you cannot do today? Kaizer suggests alternatives that keep the point of the exercise intact, so swapping one leaves the rest of the plan standing. EVERYTHING IN ONE PLACE - Direct chat with your trainer: text, photos, files and voice notes - Nutrition plan with meals, recipes and macros, when your trainer sends one - Full training history, streaks and progress your trainer sees too - 1,500+ exercises with illustrations - Apple Health sync and Live Activities while you train - Rest timer that runs on your lock screen TRAINING ON YOUR OWN? You can also use Kaizer without a trainer. Describe what you want in plain language (four days a week, bad knees, dumbbells only) and Kaizer builds a complete structured program in seconds, and keeps adapting it as you log your work. Kaizer works in Spanish, English and Portuguese, in 20+ countries. Terms of Service: https://kaizer.app/en/terms-and-conditions Privacy Policy: https://kaizer.app/en/privacy-policy

About

Bunker Coaching

Features
Read full description

Bunker es la app para atletas que entrenan con un coach. Conectá con tu entrenador y tené todo tu plan en el bolsillo: • Tu entrenamiento de hoy, ejercicio por ejercicio • Tu planificación de la semana • Tu progreso: sesiones completadas, adherencia y métricas • Mensajes directos con tu entrenador • Tu estado (semáforo): listo, volviendo de lesión o lesionado Entrená con método y seguimiento real. Pedile a tu coach que te sume y arrancá. Suscripcion auto-renovable: el pago se carga a tu Apple ID al confirmar y se renueva salvo que canceles al menos 24 h antes del fin del periodo; la gestionas desde Ajustes de tu Apple ID. Terminos de uso (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ - Politica de privacidad: https://bunker-app.com/privacidad.html

Screenshots

Kaizer4 screens
Bunker Coaching4 screens

Verdict

The call

The clearest difference is in-app purchases: Bunker Coaching at none against Kaizer's 10. On price, update cadence, ads 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. Kaizer sells 10 in-app purchases, starting at $3.99 per 7 days. Bunker Coaching asks for nothing beyond the download.

UpkeepUpdate frequency

Kaizer ships an update weekly, Bunker Coaching every 9 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level
Kaizer versus Bunker Coaching: the parameters behind the verdict, then further details
ParameterKaizerBunker Coaching
PriceFreeFree
Rating5.0 (10 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings10 — better—
Update frequencyWeekly — betterEvery 9 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.416.0 — better
Further details — not scored
Size109 MB12 MB
Age rating4+4+
DeveloperKAIZEREric Frick

In-app purchases

10 purchases

Kaizer

Subscriptions10
  • Pro Weekly3 Days trial$3.997 Days
  • Pro Monthly3 Days trial$8.991 Month
  • Trainer Plan — $39.99$39.991 Month
Show 7 more
  • Pro Yearly7 Days trial$39.991 Year
  • Trainer Plan — $59.99$59.991 Month
  • Trainer Plan — $79.99$79.991 Month
  • Trainer Plan — $99.99$99.991 Month
  • Trainer Plan — $109.99$109.991 Month
  • Trainer Plan — $129.99$129.991 Month
  • Trainer Plan — $159.99$159.991 Month
None

Bunker Coaching

No in-app purchases

Questions

Is Kaizer free?
Kaizer is free to download, with in-app purchases available.
Is Bunker Coaching free?
Bunker Coaching is free to download, with no in-app purchases.
Do Kaizer or Bunker Coaching have ads?
Neither Kaizer nor Bunker Coaching shows ads.
Which is updated more often, Kaizer or Bunker Coaching?
Kaizer ships an update weekly, and Bunker Coaching every 9 days. Most recently, Kaizer was updated on November 5, 2026 and Bunker Coaching on October 31, 2026.

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