PERSONAL TRAINER SOFTWARE / BUILT IN AUSTRALIA

The PT software that thinks ahead.

AI for speed. Manual for control. You coach. We handle the rest.

  • Periodised plans in 60 seconds, or hand-built from a skeleton in minutes.
  • If you can use ChatGPT, you can use BuildStability. No painful tutorial library needed.
  • AI nutrition built for Australia. AUSNUT + Vegemite + Bunnings snag. No second app.
  • Bookings, billing, GST invoices. Zero admin, zero commissions.
Plus everything included on every plan
Programs
AI Nutrition
Scheduling
Billing
Waivers
Group Classes
Branded App
GST Invoices

No feature gates. No add-ons. No commission.

Start free 14-day trialNo credit card. 14-day trial. Cancel in 1 click.
Starter / 25 clients
$20/mo
Pro / 100 clients
$60/mo
BuildStability dashboard on a MacBook with the trainer app open on iPhone, in a premium gym studio
Premium PT software without the premium price tag
HOW WE’RE DIFFERENT

Most software hands you a template. We hand you a coach that scales.

You did not get into training to hand the same plan to ten different bodies. Most software makes you do it anyway. BuildStability adapts the template per client. You stay in every decision. The work feels like coaching again.

01 / TYPE IT. DON’T HUNT FOR IT.

If you can use ChatGPT, you can use BuildStability.

Most PT software has a tutorial library because every action is a menu you have to find. We replaced the menu with a prompt box. Ask: build Sarah a 12-week sprint plan. Show me who’s about to quit. Send last month’s invoices. Same interface you already know. New career, no learning curve.

02 / PERSONALISED, NOT TEMPLATED

Built around them. Not around a template.

Reads each client’s training history, RPE trends, injury notes, and equipment, then writes a periodised plan in 60 seconds. The plan you would write for them on a quiet Sunday. Without the Sunday.

03 / FORTY CLIENTS, FORTY PLANS

Edit the program. Forty plans update themselves.

Push a template change to your active client list. The engine defers it for clients in deload, swaps the lift if their gym does not have it, skips clients with relevant injuries, applies the rest. Forty individual conversations you did not have to have. Forty clients who feel like the plan was written for them. Because it was.

04 / NEVER WITHOUT YOUR SAY

AI drafts. You decide.

Every progression suggestion comes with a reason. Every change waits for your approval. Full version history, so you can always see what the plan was, what it became, and why. The line between “fast” and “automatic” stays where you draw it.

01 / AI PROGRAM BUILDER

A program in seconds. Not Sundays.

Describe your client. AI writes a periodised plan from their actual history, not a template. You review, tweak, assign.

  • Reads real history

    Injury notes, RPE trends, last session’s actual load. Not a generic template, not a population average.

  • Edits in-line

    No PDF exports. No emailing the plan. No “did you get my program?” The client opens the app, the plan is there.

  • Same builder, every sport

    HYROX periodisation, healthy-ageing progressions, hybrid lifting, running base. One builder, every sport you coach.

BuildStability AI program builder generating a periodised workout plan
02 / AI NUTRITION, BUILT FOR AUSTRALIA

Vegemite. Snags. Weet-Bix. In your food database.

Your clients shop at Coles, not USDA. Repley sets protein and calorie targets from the training block. Clients log a Bunnings snag in two taps. No second app. No subscription on top.

  • Five ways to log

    Barcode, label photo, meal photo, chat with Repley, voice. Every method included on every paid tier.

  • Targets, not menus

    Macros adjust for training day vs rest day. Clients log what they ate, not what an app prescribed.

  • Adherence, not raw logs

    Fuel score, protein streak, where the week broke. The view your coaching actually uses.

  • Competitors lean on USDA

    Their food data is American. Their sync layer is MyFitnessPal. Your client doesn’t shop at USDA.

Food data sourced from
AUSNUT R3ColesWoolworthsOpen Food Facts AU
BuildStability AI nutrition dashboard showing AU food database, protein streak, fuel score, and conversational logging with Repley
03 / MANUAL PLAN BUILDER

Or build by hand. Faster than you remember.

Some clients you write yourself. Pick split, goal, equipment. The day grid arrives pre-shaped. No blank canvas. No copy-pasting from last week’s Google Doc.

  • Skeleton in three picks

    Split, goal, equipment. The grid arrives pre-shaped with movement-pattern slots. Push / Pull / Legs in one click.

  • Prescription shorthand

    3×8 @RPE8 90s parses straight into Sets, Reps, RPE, Rest. One keystroke instead of four dropdowns.

  • Auto-saves every two seconds

    Section headers (Strength, Accessories, Finisher) appear as you build. Never lose work to a closed tab.

BuildStability manual plan builder showing the Build a starting skeleton wizard with movement-pattern slot rows pre-filled for a Push / Pull / Legs split
04 / SMART BULK PUSH

Edit the program. Forty plans update themselves.

Most software gives you copy-paste. We adapt per client. One edit, forty bespoke plans.

  • Adapts per client

    Defers it for clients in deload. Swaps lifts when the gym doesn’t have the kit. Pauses on flagged injury notes. Applies the rest.

  • Two-step review

    Expand any client to see exactly what lands for them and Repley’s reasoning. You see every change before it ships.

  • Reads the context

    RPE trends, injury notes, current block phase. Every client checked before the engine adapts the template to them.

BuildStability Smart Bulk Push showing per-client adaptation diff with deload defer, equipment swap, and injury skip buckets
05 / 90-DAY CLIENT JOURNEY

Show them the change. Or watch them drift.

Every client gets a 90-day arc. Day 0 takes 30 seconds. Day 7, 14, 30, 60, and 90 fill themselves in from the workout logger and the calendar. Day 90 is a page they share.

  • Day 0 in 30 seconds

    Goal and starting weight by default. Optional toggles for 1RMs, body measurements, starting photo. Skip what doesn’t matter.

  • Six milestones, mostly auto

    Day 0, 7, 14, 30, 60, 90. Strength PRs and adherence land on the right milestone automatically. No manual journaling.

  • Day 90 they share

    The arc ends with a celebration page the client posts. Referrals follow without you asking.

See the full 90-day journey →
Personal trainer 90-day client journey with AI assistant capture nudge
06 / ENGAGEMENT SCORE

For the clients the journey did not reach.

A real-time signal across bookings, sessions, and billing that flags drift roughly 30 days early. Save the client before they ghost.

  • 30-day early-warning

    Reads bookings, logged sessions, billing patterns, and adherence. Flags drift before the client decides to leave.

  • Transparent scoring

    Every flag shows the why. You see exactly which signals tipped a client into the at-risk bucket. No black box.

  • Opt-out per client

    Some clients don’t want a score. Switch it off for them. Their data stays yours, never trained on, never sold.

Engagement dashboard showing engagement insights, action-needed alerts, adherence stats, and at-risk client list
07 / BILLING AND GST

Money shows up. In your account. With a receipt.

Stripe Connect means clients pay you directly. We never touch the money. GST invoices in your business name. Exports your accountant won’t complain about.

  • Every billing model

    Class packs, memberships, one-offs, direct debit. One system, one dashboard, no juggling between Stripe links and spreadsheets.

  • GST done right

    Correct invoice whether you’re GST-registered or not. Built by a CPA, not bolted on. BAS-ready exports.

  • Zero commission

    No per-booking fee. No percentage. Just Stripe’s standard card fee. The price on the page is the price on your bank statement.

BuildStability billing dashboard with GST tax invoices
08 / YOUR BRAND, UP FRONT

Your studio name. Your logo. Your colours.

Your brand in the client experience. Our infrastructure behind it. No email server to run, no app to build.

  • Logo and colours, everywhere

    Custom logo and primary colour across the client portal, reports, invoices, and check-in screens. One setup, every surface.

  • Emails from your name

    Bookings, reminders, invoices send from your business name via our infrastructure. No per-studio mail server to wrangle.

  • iOS and Android, branded

    The BuildStability apps open on your business identity when clients log in. No App Store fees, no developer account.

Seven iPhones showing the same BuildStability portal in different trainer brand colours
FM/FOUNDER

Your clients already use AI to train. You should too.

Matt Crofts, BuildStability founder

Matt Crofts · CPA · 25 Years Software

Apps like Fitbod and JEFIT sell your clients AI workouts for $10/month. Every PT tool I tried just stored data and charged for it. So I built one that fights back. AI that works for trainers. Not against them.

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Founding Member · 25% off for life
$60/mo$45/mo
Pro tier, 100 clients. Save $15/mo ($180/year) every year you stay subscribed.
See founding offer →
FC/FAIR CANCELLATION

Cancel any time, without friction.

FAIR CANCELLATION
01.

Cancel in 1 click. Directly from the Business page. No support ticket. No phone call.

02.

Keep access until the end of your billing period. No immediate lockouts. Export your data on your schedule.

03.

Changed your mind? Undo in 1 click. Reverse a pending cancellation any time before it takes effect.

Ready to stop doing admin?

From $4/mo. 14-day free trial. No credit card. Cancel in 1 click.