The coach's operating system
Your whole roster on one living map — every set, meal and check-in read overnight. By morning it's sorted itself into who needs you today.
The rest are on track — and it'll tell you the moment that changes.
Sunday · 9:47pm
You're programming tomorrow's sessions when it hits you — Sarah's check-in. From Thursday. Still on "seen." She noticed too.
The ceiling
Where a fully-booked coaching week actually goes:
Hire juniors and you dilute the one thing clients came for: you. The only leverage worth having doesn't cost them you.
Decisions
Everyone else puts an AI in front of your client. We put it behind you. Nothing reaches a client until you say so.
Engine analyses
42 clients, overnight
Drafts a decision
for your sign-off
You approve
client hears from you
Sample check-in · Wei Lin, wk 3
PHNX
ready to progress
Drafted for you
Squat 80 → 82.5kg
Decided from logged reps & RPE — not a calendar, not a guess.
Loss stalled at −0.1 kg/wk → macros recalculated from her real trend: 2,100 → 1,980 kcal, drafted for your approval.
The whole periodized block, built in seconds — readiness, not the calendar, decides when she advances.
Logins down 60%, two missed sessions, a flat "I'm fine" — flagged two weeks before they quit. A quiet leaver takes S$400+/mo; one save pays for PHNX all year.
Moments
The drain was never the sending. It was the noticing — scanning fifty people for the PR, the silence, the milestone. PHNX does the noticing and the first draft. You add the voice and hit send.
Priya just logged a squat PR — 100kg × 5, her first double-bodyweight squat.
Drafted in your voice
PRIYA. 100 for 5 — double bodyweight. Think about where you were in March. Unbelievably proud of you
Every edit teaches it your voice — the rewrite shrinks to a tweak, then to just send.
Wins go loud — to the client. Misses go quiet — to your private queue, never an automated "you missed." Care, not surveillance.
What they see
Every decision you approve lands as a normal message from you, right in their chat. No "AI" to notice. The PHNX app sits quietly in the background for logging, progress and booking — your name on all of it.
The vow
Your clients will never hear from software. They'll hear from you — more often, and sharper.
Fred · your coach
last seen recently
The math
You're just not getting the brain.
≈ S$150+/mo, in pieces
Their app talks to your client. Ours talks to you.
| Feature | PHNX | TrueCoach | Trainerize | PT Distinction |
|---|---|---|---|---|
| Program builder | drafts the whole periodized block | templates | AI drafts, per workout | templates |
| Check-ins | read for you overnight | you review each | you review each | you review each |
| Booking + payments (PayNow) | built in | not in SG | add-on | — |
| The amplifier — drafts your decisions, notices PRs & fades, writes in your voice | every morning, you approve | — | — | — |
| Price · ~50-client roster | S$119 | ~S$175 | ~S$107 | ~S$115 |
Program builder
Check-ins
Booking + payments (PayNow)
The amplifier — drafts your decisions, notices PRs & fades, writes in your voice
Price · ~50-client roster
Their published USD tiers at ~50 clients, converted to SGD — checked Jul 2026.
Switching in
Export from TrueCoach, Trainerize or a spreadsheet — clients, programs and 90 days of history, read straight into the engine.
42
clients imported
90d
history read
6
rows for you
→ "I read your 42 clients' last 90 days. Here's the 4 who need you today."
Your clients never notice a switch. They just notice you getting sharper.
Request access →Pricing
And your client payments are yours — PHNX takes 0%, forever.
Starter
Pro
First 10 coaches: S$69/mo — locked for life
SGD · annual = 2 months free (Pro ≈ S$99/mo) · month-to-month, cancel anytime — every client's data exports with you · 50+ or a team? Talk to me.
From the founder
So I built the tool I wanted — it does the analysis overnight and hands me the decision each morning. My clients never saw a machine. They saw me. — Fred
I still coach on a Singapore gym floor — PHNX runs my own roster every day.
Questions
PHNX is a coaching-intelligence platform for personal trainers and online coaches in Singapore. The engine reads every client's training, nutrition and check-in data overnight and drafts the coach's decisions; the coach approves, and clients only ever hear from their coach. It includes programming, check-ins, photo-based nutrition tracking, booking, packages, PayNow and card payments, and a client app under the coach's name.
PHNX pricing is published: Starter is S$49/month for up to 15 clients; Pro is S$119/month for up to 50 clients and includes the decision engine. The first 10 coaches get Pro at S$69/month, locked for life. Annual billing gives 2 months free, and PHNX takes 0% of client payments. There is no sales call and no demo gate — the price is on the page.
Yes. PHNX covers what TrueCoach, Trainerize and PT Distinction do — program delivery, check-ins, client messaging — and adds what they don't: it drafts the coach's decisions (the periodized block, the check-in response, the nutrition adjustment) for the coach to approve each morning. At a ~50-client roster PHNX Pro is S$119/month versus roughly S$175/month for TrueCoach. Coaches can import their whole book from either tool in minutes.
PHNX is built in Singapore for Singapore coaches: PayNow and card payments are built in, pricing is in SGD, and client data is handled under the PDPA. It also works for online coaches anywhere.
No. Every client-facing message is drafted for the coach, approved by the coach, and sent as the coach — in the coach's voice, which the engine learns from the coach's edits. Clients only ever hear their coach.
Yes. Export your roster from TrueCoach, Trainerize or a spreadsheet and PHNX reads it in — clients, programs, nutrition targets and 90 days of history — in minutes. Exercises map to the engine automatically; only the uncertain rows are flagged for the coach.
Starter supports up to 15 clients, Pro up to 50. Because the engine does the overnight reading and drafting, the coach's ceiling is set by approval time, not analysis time. For 50+ clients or teams, contact PHNX.
No. PHNX charges a flat monthly subscription and takes 0% of client payments, forever. Coaches keep every dollar clients pay through PayNow or card.
The founding ten
I'm onboarding the first ten coaches by hand — Pro at S$69/mo, locked for life — in exchange for honest feedback, and a testimonial only once it's earned.
Send the form and I'll reply within a day — me, not a bot. Then a live import of your roster, read by the engine — and the first thing you'll see is which of your clients needs you tomorrow.
No more Thursday check-ins surfacing on Sunday night.
Starting smaller? Same form — just say so, and Starter it is.
Request received
It'll land at .
Then: a live import of your book, and your first look at who needs you tomorrow.