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Trainer client management app
Every client in one panel: who's progressing, who needs attention and who's about to stop training.
Short answer.
Kaizer is a trainer client management app that brings every client into a single panel: profile, notes, injuries, files and attention filters, with session history and chat built in. Smart alerts detect risk and churn signals so you act before losing the client. Over 1000 trainers across 20+ countries manage their clients with Kaizer.
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 a client management app makes sense.
Your client information is split across WhatsApp, spreadsheets and memory.
You don't have one place with each client's injuries, notes and files.
You find out a client churned only when they stop replying.
Past 10 clients, you can no longer tell at a glance who needs attention today.
You want tracking (sessions, adherence, PRs) to log itself, without chasing screenshots.
Client management in Kaizer.
Client panel
All your clients in one view: profile, routine status and last activity.
Per-client record
Full profile with notes, injuries, limitations and attached files, in one place.
Attention filters
Filter by who needs attention today instead of reviewing client by client.
Smart alerts
The AI detects risk and churn signals and notifies you in time to step in.
Session history
Every logged session lands on the record: adherence, loads and PRs per client.
Built-in chat
The conversation with each client lives on their record, in real time and inside the product.
Frequently asked questions
From 3 clients on the Free plan to 500 on Unlimited (USD 149/mo). Starter (USD 19/mo) covers up to 15 and Pro (USD 49/mo) up to 50, with annual discounts and local pricing per country.
The AI analyzes each client's activity, detects risk and churn signals, and alerts you so you can reach out or adjust the plan before they stop training.
Yes. Each client has a record with profile, notes, injuries, limitations and files, and that information feeds the routines the AI proposes.
From the Kaizer client app (iOS and Android). Every logged session shows up on their record automatically — no screenshots, no spreadsheets.
Yes. You add your clients in Kaizer and fill out their records; if your case is tricky, the support team helps you get set up.