Built for Personal Trainers
Run your personal training business from one place
Client onboarding, session package invoicing, and training agreements — without the spreadsheet juggling and missed payments.
Why personal trainers struggle with client admin
These are the issues that eat into your time and margins. Sound familiar?
Informal agreements with no paper trail
You agree a 10-session package in a text message. The client drops out after four and disputes what they agreed to. Signed agreements protect your income.
Session-by-session payments erode stability
Session-by-session payments create unpredictable income. Packaging sessions with upfront payment — backed by a signed agreement — gives you predictable revenue.
Client admin scattered across platforms
Health questionnaires in email. Invoices in a banking app. Goals in a notes app. Getting organised should not require five separate tools.
Everything you need in one place
Kestern gives personal trainers the tools to run a professional client workflow — without the admin chaos.
Client onboarding briefs
Capture health history, fitness goals, training preferences, and availability in a structured brief. Clients sign before the first session begins.
Package invoicing with upfront payment
Invoice for session blocks — 5, 10, or 20 sessions — payable upfront. Kestern handles VAT and sends payment reminders for outstanding balances.
Training agreement sign-off
Send your terms — cancellation policy, session structure, expectations — for digital sign-off. On file before training begins.
Client portal for onboarding and records
Share a portal link for clients to complete their onboarding brief, sign training agreements, and pay for session packages.
One link. Everything your clients need.
Your personal training clients access a branded portal to complete their onboarding brief, sign training agreements, and pay for session packages — all in one place.
Share your portal link on your website, in your email signature, or on your social profiles. Clients land on a branded page with everything they need — and nothing they don't.
Set up your portal free →Start free, scale as you grow
7-day free trial on every plan. No credit card needed to start.
Perfect for solo operators just getting started.
- Client portal with your branding
- Brief management & workflow
- Professional invoicing
- File sharing with clients
- Up to 2 team members
For growing teams managing multiple clients.
- Everything in Starter
- Team collaboration (up to 5)
- Project assignments
- Activity log & audit trail
- Priority email support
For established businesses with larger teams.
- Everything in Pro
- Up to 15 team members
- Sub-contractor collaboration
- Multi-currency invoicing
- Dedicated support
Start managing your training clients today
7-day free trial. No credit card needed. Set up in under 5 minutes.
Start your free trial →