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Personal training software
Routines, clients, chat and business metrics in a single platform, with AI doing the heavy lifting.
Short answer.
Kaizer is personal training software that centralizes routine building, client tracking, chat and business metrics in one platform. Its AI creates routines from goals and equipment, adapts loads after every logged session and flags churn-risk signals. Over 1000 trainers use it across 20+ countries, and the free plan covers up to 3 clients.
Updated: June 13, 2026
1000+active trainers
+120,000routines created
20+countries in operation
1,500+exercises with video
See Kaizer with your own use case.
When software like Kaizer makes sense.
You build programs in spreadsheets and lose hours copying, pasting and adjusting loads by hand.
Your clients are scattered across WhatsApp, Excel and notes, with no single view per client.
You want to spot the moment a client stops training — before they churn.
You need retention, adherence and session metrics without building reports manually.
You want a platform available in English, Spanish and Portuguese with local pricing.
What Kaizer includes.
AI routines
The AI builds routines from goals, preferences, limitations and equipment, over a base of 1500+ exercises.
Automatic load adaptation
After every logged session it adjusts sets, reps and loads using estimated 1RM from NSCA-derived tables.
Client management
Every client in one panel: profile, notes, injuries, files and attention filters.
Smart alerts
Detects risk and churn signals so you act before losing the client.
Built-in chat
The conversation with each client, in real time and inside the product.
Business insights
Retention, adherence, sessions and PRs — trended, with deltas vs the previous period.
Client app
Each client trains from the Kaizer client app, where they see their trainer, routines and progress.
Frequently asked questions
There's a Free plan for up to 3 clients, Starter at USD 19/mo (up to 15 clients), Pro at USD 49/mo (up to 50) and Unlimited at USD 149/mo (up to 500). Annual billing lowers each price, and there's local pricing per country. You can pay via Stripe, Mercado Pago or card.
No. The Free plan lets you start with up to 3 clients without entering a card, with access to routine building and tracking.
Kaizer is available in Spanish, English and Portuguese, with global support and a dedicated team for LATAM.
It creates routines from goals, preferences, limitations and equipment; adapts loads automatically after every logged session; detects risk and churn signals; and generates business insights. It also includes a built-in assistant that operates the platform in natural language, by text or voice.
Yes — they use the Kaizer client app (iOS and Android), where they see their trainer, routines and progress, and log every session.
Over 1000 trainers across 20+ countries, who have already created 120k+ routines on the platform.