Fitness
Gym management software, shaped around how your gym actually runs.
Check-in, packages, PT scheduling, Zalo reminders and a revenue board — software written for your gym, bought outright, no monthly rent.
01 / The problem
Gyms of 50–500 members usually still run on Excel and Zalo: members who quit two months ago still get auto-charged without the owner knowing, PT schedules clash, and 12+2 promo packages don't add up in any off-the-shelf tool.
02 / What Nyx builds
Tailored to your actual work.
Check-in & packages
QR check-in, 1/3/6/12-month packages and promo combos that add up to the đồng.
Clash-free PT scheduling
Book trainers without time clashes, track completed sessions.
Zalo member reminders
PT reminders 2 hours before, renewal reminders 7 days before — automatic.
Payments & revenue
Collect via VNPay/MoMo. A board showing active vs lapsed members, PT vs package revenue.
Why not off-the-shelf SaaS
Instead of KiotViet for Gym / Sapo POS
Those are retail POS tools relabelled "gym" — they can't handle 12+2 packages or per-session PT pay, and they make your gym bend to them. Nyx does the opposite, fitting how your gym runs — and you pay once, no monthly rent.
03 / FAQ
FAQ
Can it pay freelance PTs per session?
Yes. Nyx builds exactly how you pay — per session, per head, or mixed commission — instead of forcing a fixed formula.
Can it read an InBody scale?
If the machine has a port (RS-232/USB/API), results drop straight into the member record, no manual typing. A print-only machine can't connect.
Buy outright or rent monthly?
Bought outright. Pay once, source to your GitHub, no monthly rent, no lock-in to Nyx.