Gym Management Glossary
Plain-English definitions of the terms you'll see across GymLeb — from MRR and churn to ISAPI and biometric enrollment.
- Access control
- The system that decides which members can enter which doors at which times. In GymLeb, access control is delivered through Hikvision devices linked to member subscription status — when a membership expires or is paused, access is revoked automatically.
- Biometric enrollment
- The one-time process of registering a member's fingerprint or face on a Hikvision device. GymLeb stores enrollment metadata and links it to the member account, while the raw biometric template stays on the device.
- Check-in
- A logged event that a member entered the gym. In GymLeb, check-ins can be triggered by an access control device (fingerprint, face, card, PIN, QR) or recorded manually by staff at the front desk.
- Churn
- The percentage of members who cancel or fail to renew within a given period. GymLeb tracks churn alongside MRR and retention so owners can see the health of the membership base, not just the headline revenue number.
- Day pass
- A single-visit access pass sold to non-members. GymLeb supports day passes as one-off products through the POS, separate from recurring subscriptions.
- Drop-in
- An informal name for a single-visit attendee, usually paying a day pass rate or a class-pack-derived rate. GymLeb tracks drop-ins distinctly from members for revenue reporting.
- Gateway
- A small local service that runs on the gym's network and bridges Hikvision devices to the GymLeb cloud over a signed Socket.IO channel. The gateway never exposes devices directly to the internet.
- Hikvision
- A widely deployed access control hardware vendor. GymLeb integrates natively with Hikvision biometric and card-based readers via the vendor's ISAPI HTTP protocol.
- ISAPI
- Hikvision's Internet Server Application Programming Interface — the HTTP protocol GymLeb uses to send commands to and receive events from Hikvision devices.
- Member portal
- The web view a gym member sees when they log in to GymLeb. The portal shows their subscriptions, attendance history, upcoming classes, and renewal warnings, mirroring the mobile app.
- Membership
- A time-bound right to access a gym, typically tied to a recurring subscription. GymLeb stores memberships as records linked to a member, a gym, a plan, and a billing schedule.
- MRR (Monthly Recurring Revenue)
- The predictable monthly subscription revenue a gym is generating, independent of one-off product sales or day passes. GymLeb shows MRR alongside new sign-ups and churn on the owner dashboard.
- Multi-gym
- A GymLeb deployment that manages more than one physical gym location under a single owner or chain. Members, staff, and reporting can be unified across the chain or scoped per location.
- POS (Point of Sale)
- GymLeb's built-in checkout for selling supplements, drinks, merchandise, and add-ons. POS transactions tie back to member accounts and feed into the same revenue reports as subscriptions.
- PT (Personal Training)
- One-on-one or small-group training sessions sold separately from a regular membership. GymLeb tracks PT sessions, cancellations, and trainer payouts.
- Renewal warning
- A signal shown to members and staff when a membership is approaching its end date. GymLeb surfaces renewal warnings in the dashboard, member portal, and mobile app to reduce churn from passive non-renewals.
- Retention
- The percentage of members who continue paying month over month. Retention is the inverse of churn and is GymLeb's headline health metric for a gym's membership base.
- Socket.IO bridge
- The persistent, signed real-time connection between a GymLeb gateway and the GymLeb cloud. The bridge carries device commands and access events with retry/replay semantics so nothing is lost when a device or network blips.
- Subscription
- A recurring billing relationship between a gym and a member. GymLeb subscriptions can be monthly, quarterly, or annual, with automatic renewal and member-facing renewal warnings.
- White-label app
- An optional GymLeb add-on that publishes a member app branded for a specific gym (its own logo, colors, App Store listing) instead of the generic GymLeb member app.