You send routines over WhatsApp.
Loose PDFs, voice notes and screenshots your clients lose in the chat. Nobody really knows what's on for today.
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Less time building routines, more time for you.
Building routines, adjusting loads, tracking every client. All of that eats your hours today; in Kaizer you handle it in minutes and from one place.
Client retention+18 pts
92%Last 6 months
SquatProgressive overload
8082.58587.5
+2.5 kg · auto
YOUR WEEK ON KAIZER
18Routines built
4 hSaved
1 minPer routine
Jorge MéndezMonthly plan
$25.000Auto-charge · reminder scheduled
92%client retentionvs 50% on spreadsheets
200+coaches already on Kaizerin 12 countries
+15kclients follow routines dailyin the Kaizer app
30 → 1 minto build a full routinehand-made before, AI now
REAL PAIN
The problems you live every day.
We know what it's like to run your business without the right tools. Kaizer handles each one of these for you.
You edit spreadsheets from your phone.
Every load change means opening Excel, scrolling and praying you don't break a formula.
Your clients quit after a few weeks.
With no follow-up and no app that hooks them, they get bored and leave.
Billing is a mess every month.
Loose transfers, manual reminders and money that slips through the cracks.
Your clients deserve a real app.
Not a WhatsApp group. They want to see their routine, log sets and follow their progress.
You lose hours on things that aren't training.
Admin, billing and spreadsheets eat the time you want to spend coaching.
HOW WE SOLVE IT
Routines adjust themselves after every workout.
Every time your client finishes a set and logs how it went, Kaizer recalculates the loads for the next session. You don't touch a single spreadsheet.
Set logged.
Your client marks the set as completed from the app.
Logs the effort.
Notes the RPE or reps in reserve in two taps.
Plan updated.
Kaizer adjusts the loads and readies the next session on its own.
Automatic post-session adjustment, no static templates.
After every session Kaizer recalculates the estimated 1RM and updates the weights and reps of upcoming sets. A toggle to run it unattended or review it before your client sees it. And if you prefer, you can turn it off anytime — you always have the final say.
Sentadilla · 4 semanas
SEM 180 kg × 5
SEM 282.5 kg × 5+2.5 kg
SEM 385 kg × 5+2.5 kg
SEM 487.5 kg × 5+2.5 kg
Built-in billing: prices shown in USD, charged in pesos.
Prices are shown in USD and charged in pesos, with no money lost on weird FX. Clients pay with a local card or wallet.
A real app for your clients.
Your clients train in the Kaizer app: today's routine, a video for every exercise, set logging, progress and chat with you. The premium experience you want to give.
A dashboard that replaces Excel and every spreadsheet.
Clients, routines, progress and billing, all in one place. Manage 100+ clients without losing your quality of attention.
PRODUCT
What you get in Kaizer.
Everything in one place, so you don't jump between five tools to run your business.
Inactivo · 7 díasTomás Olmedo
PR · Peso muertoMateo Olavarría
Plan vence · 3 díasJulieta Sosa
ADAPTATION
Plan that updates itself.
Weights and reps update after every logged workout, using NSCA-derived 1RM estimates.
Creale una rutina de push pull legs a Juan
Rutina de push pull legs creada a Juan
Plan · Push Pull Legs3 días
Día A · Push6 ej.
Día B · Pull5 ej.
Día C · Legs7 ej.
GENERATION
First routine in 1 minute.
The AI generator uses goals, preferences, equipment and client restrictions.
Sentadilla · 4 semanas
SEM 180 kg × 5
SEM 282.5 kg × 5+2.5 kg
SEM 385 kg × 5+2.5 kg
SEM 487.5 kg × 5+2.5 kg
LIBRARY
1,500+ exercises with video.
Filterable by muscle group, equipment and difficulty. Reusable in any plan.
Últimos 30 días▲ +12 pp
Retención92%+4pp
Adherencia87%+2pp
Activos248+12
Top alumnos
Tomás OlmedoAdherencia
96%Julieta SosaAdherencia
91%Mateo OlavarríaAdherencia
84%VISIBILITY
Know who's leaving before they leave.
Automatic churn signals on adherence, skipped sessions and reported energy.
Conversación · HoyEn línea
Julieta · 09:42
Coach, molestia en la rodilla hoy.
Bajé volumen en piernas:
rutina_marzo.pdf09:44Gracias coach!
CONVERSATION
In-app chat with every client.
Per-client threads, files, video. All communication stays inside the product.
CLIENT APP
Your clients train inside the Kaizer app.
Today's routine, per-exercise videos, set logging and progress. iOS + Android, with nothing for you to build.
Online · 1 mesPlan + chat
USD 60Online · 3 mesesPlan + chat + check-ins
USD 150Presencial · 1 mes1 sesión semanal
USD 220MARKETPLACE
Show up in the public directory.
Capture new clients without paying ads. Profile with your pitch, plans and reviews.
AUDIENCE
Who Kaizer is for.
If you coach people and want your operation to look and feel professional, Kaizer is for you. These are the profiles that get the most out of the platform.
Coaches stepping up the craft.
Leaving Excel and WhatsApp behind, looking for your first real software.
Online trainers.
Bill in local currency without losing on FX, communicate in your own Spanish.
Online, hybrid or in-person.
In-person sessions + digital programming, all in one single dashboard.
Coaches obsessed with quality.
Hypertrophy, strength, fat loss, AI configurable to your methodology.
PRICING
Free plan forever. You pay only when you grow.
Start free, no card. When your business grows, move to a paid plan from USD 19/mo, every feature included and 17% off when you pay yearly.
14-day trial, no card. Cancel anytime.
EXPLORE
Go deeper on what matters.
FEATURE
How the AI works
How Kaizer adjusts weights and reps after every session using sets, RIR and estimated 1RM.
See feature
COMPARISON
Kaizer vs Trainerize
Honest side-by-side against the global English-language leader.
See comparison
COMPARISON
Kaizer vs Harbiz
Honest side-by-side against the Spanish-language leader.
See comparison
FAQ
What coaches ask us most.
Yes. The Free plan is free forever up to 3 clients, no card. Load your first clients, generate routines with AI and go. Upgrade in seconds when you grow.
No. The client app is free for your clients. You pay the plan; they train inside the Kaizer app at no cost: routine, videos, set logging, progress and chat with you.
Prices are shown in USD and charged in pesos, with no money lost on weird FX. Your clients pay with local cards, transfers or wallets.
Yes. Kaizer learns from the routines you load and from your patterns. You can define per-client preferences (frequency, equipment, goal, restrictions) and the AI respects them when generating the initial routine. After that, the post-session weight and rep adjustment respects the minimum increments, rep range and progression mode you configured per exercise. You still decide what ships.
Yes. Product, app and dashboard are fully available in English and Spanish. If you have clients in the US or expats, you can work with them in English without friction.
Under 48 hours, and we do it for you: our team migrates all your data (clients, routines, history). No CSV exports, nothing to upload by hand — you just review and publish.
The team helps you with guided onboarding, initial routine templates and 1-on-1 support via chat, email or video. You can book a free demo with the founder or a specialist.
Start free and move your business to Kaizer.
Load your first clients, generate routines with AI and start today. Free plan forever up to 3 clients.
Still have questions? Ask Kaizer's AI