First software
Coaches stepping up the craft.
Leaving Excel and WhatsApp behind, looking for your first real software.
AI app for personal trainers.
Create routines, review load adjustments and track each client from a platform shaped around the coach.
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.
- Routines over WhatsApp and Excel from your phone.Loose PDFs, voice notes and screenshots your clients lose in the chat. Every load change means opening a spreadsheet and praying you don't break a formula.
- Important signals stay scattered.Without centralized logs and tracking, it is harder to see which client needs a programming or communication review.
- Billing and admin eat your hours.Loose transfers, manual reminders and money that slips through the cracks. Admin and spreadsheets eat the time you want to spend coaching.
Adherence · example
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Your operation in Kaizer, in four steps.
After each logged session, Kaizer uses sets, reps, RIR and estimated 1RM to adapt the next loads.
Add client
QuickManual
First nameSofía
Last nameMartínez
Emailsofia@gmail.com
kaizer.app/i/x8f2…Copy
Invite link
Step 01
Add your client.
Invite them with a link and they come in with a full profile: goal, experience, equipment and restrictions.
- Quick or manual onboarding, with an invite link
- Profile with goals, experience and equipment
- USD 0 Free plan up to 3 clients
Create new routine
ManualGenerate with AI
Sessions / week4
Duration8 weeks
GoalHypertrophy
LimitationsNo knee impact
Generate routine
Step 02
The first routine, with AI and your judgment.
The generator uses the client's goals, preferences, equipment and restrictions. You decide what ships in the final routine.
- A draft generated from the client's context
- 1,500+ exercises with video, filterable
- Configurable to your methodology
Alerts3
Juan P. — Assign his first routineAssign
Sofía M. — Hasn't trained in 6 daysMessage
Lucas R. — Routine expires in 3 daysRenew
Step 03
Tracking and alerts, without chasing anyone.
Kaizer detects churn risks and signals so the coach can review the context and decide how to intervene.
- Signals that help prioritize follow-up
- In-app chat with every client
- All communication stays inside the product
Session A · Bench pressClosed
SetKgRepsRIR
16083
26082
36082
46082
Step 04
Your client trains in their app.
Today's routine, per-exercise videos, set logging and progress in the Kaizer client app.
- Available on iOS and Android
- Logs sets, reps, loads and effort
- Kaizer adjusts the loads and readies the next session
The coach can review and edit the programming and keeps the final decision for each client's context.
What you get in Kaizer.
Everything in one place, so you don't jump between five tools to run your business.
Next session · Mon 09:00+2.5 kg
Bench press
Weight6062.5 kg
Sets4 × 6-8
ApplyEdit
Create new routine
ManualGenerate with AI
Sessions / week4
Duration8 weeks
GoalHypertrophy
LimitationsNo knee impact
Generate routine
Alerts3
Juan P. — Assign his first routineAssign
Sofía M. — Hasn't trained in 6 daysMessage
Lucas R. — Routine expires in 3 daysRenew
Chat
SMSofía M.Closed today's session, last set was tough2
LRLucas R.Sure, starting the new block on Monday
Last set of bench press was toughSaw it in the log — Friday we drop to 4×6 and adjust
Session A · Bench pressClosed
SetKgRepsRIR
16083
26082
36082
46082
Client · Sofía M.
Age29
LevelIntermediate
GoalHypertrophy
Adherence · 30d↑4%
Overview · example
Clients—
Adherence—
Sessions—
Records—
Public profileAccepting new clients
JPJuan Pérezkaizer.app/trainers/juanperez
Strength · Hypertrophy
Profile visible
Centralize programming and tracking.
One dashboard for clients, routines, logs, progress and communication.
- Clear public plansFree, Starter, Pro and Unlimited with limits of 3, 15, 50 and 500 clients.
- One dashboardYou see clients, routines, progress and chat without leaving the same dashboard.
- Marketplace to growPublish your profile so potential clients can understand your offer and contact you.
Overview · example
Clients—
Adherence—
Sessions—
Records—
Try it with your clients this week.
What people say about Kaizer.
In the press and among the trainers already coaching with Kaizer every day.
Kaizer solved the hardest parts of my job: structure, planning and real tech that works, backed by an incredible team.
Kaizer: hyper-personalized AI to transform training.
Emprelatam
Kaizer makes planning and tracking simple: every athlete in one place, easy for me to manage and for them to use.
Argentines build the first AI personal trainer.
iProUP
Using Kaizer organized and simplified my work. I no longer dig through 700 spreadsheets to find my clients.
Kaizer: hyper-personalized AI to transform training.
EmprelatamWho Kaizer is for.
If you coach people and want software for personal trainers that makes your operation look and feel professional, Kaizer is for you. These are the profiles that get the most out of the platform.
Online
Online trainers.
Routines adapt after each logged session and tracking stays in one place.
Hybrid
Online, hybrid or in-person.
In-person sessions + digital programming, all in one single dashboard.
Quality
Coaches obsessed with quality.
Hypertrophy, strength, fat loss, AI configurable to your methodology.
What coaches ask us most.
Plans, billing, migration and getting started.
Yes. The Free plan costs USD 0 and supports up to 3 clients. You can evaluate routine creation, tracking and the client app before moving to a paid plan.
The client app is part of the Kaizer experience. Clients see routines, check videos, log sessions and communicate with you; confirm current conditions on the pricing page.
Kaizer supports USD, ARS, EUR and BRL, with local currency by country where applicable. Publishable methods are Stripe, Mercado Pago and card payments.
Yes. The initial routine uses goals, preferences, limitations and equipment. After each session, Kaizer adapts loads from sets, reps, RIR and estimated 1RM; you review the programming and keep the final decision.
Yes. Product, app and dashboard are fully available in Spanish, English and Portuguese. If you have clients in the US, Brazil or expats, you can work with them in their own language without friction.
The team guides you through onboarding and initial setup. Before you begin, we review which data is available from your current tool and what you need to configure in Kaizer.
Kaizer offers global support with a dedicated team for LATAM. You can book a demonstration with the team to review your context.
Go deeper on what matters.
How the AI worksHow Kaizer adjusts weights and reps after every session using sets, RIR and estimated 1RM.The public trainer directoryPublish your profile and people looking for a trainer find you there. On average, a published trainer picks up 2 new clients a month.Kaizer vs TrainerizeA comparison with official sources and a visible review date.Kaizer vs HarbizA comparison with official sources and a visible review date.Software for CrossFit coachesWODs and strength cycles, by hand or with AI, logged per athlete.Software for strength coachesLoad progression with RIR and estimated 1RM, session by session.Software for running coachesRunning weeks plus complementary strength in every runner's plan.App for gym trainersRoutines and centralized tracking for work on the gym floor.
