Vonic
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Know how busy your gym is, before members arrive.

Vonic turns the door entries you already record into live occupancy for every branch and hour-by-hour forecasts, so you can staff for the rush before it starts.

Self-serve setup on Kisi. No new hardware and no sales call.

31%
of UK gym-goers say a busy gym is their main frustration.The Voice of the UK Gym Customer, Total Fitness & CIL, 2026
Owen, a gym manager, next to Vonic's live occupancy panel

From door swipes to decisions.

Live numbers for right now, forecasts for later today, and a nudge whenever there's something worth acting on.

Live occupancy, every branch

Every entry and exit lands in seconds, so you see how many people are in each branch right now, not how many swiped in this morning.

Live occupancyLive
Riverside38 / 120Quiet
Northgate81 / 110Busy
Old Town94 / 100Near capacity
Canal Street52 / 140Quiet

Forecasting

Predictive, not reactive. Vonic's engine models your hourly occupancy from historical patterns, seasonal trends and calendar events, then retrains on every new visit, so forecasts get sharper the longer it runs.

Later today at NorthgateForecast
16:0058 / 11017:0079 / 11018:00101 / 11019:0094 / 110
Busy spell from 17:45Add one floor staff member from 17:30 to 20:00.

Member-facing busy meter

45% of gym members say packed spaces make it harder to stay consistent. A live busy meter on your website or app steers them to quieter times, flattening peaks and keeping members who'd otherwise walk.

Sogolytics member survey, 2026 (1,069 US adults)
What members seeRiverside
Quiet24% full
Good time to go. Usually busy from 17:00.

PT lead engine

Vonic spots members worth a PT conversation: new joiners finding their feet, regulars who've never booked, and on-off members starting to drift. It matches them to the hours your trainers are free, so every empty slot has a warm lead in the building.

30%Members who train with a PT are 30% less likely to cancel and stay seven months longer.
£6,840Extra revenue a year per 1,000 members for every one-point rise in PT uptake.
Your Personal Training report, 2026, data from 400 UK facilities
New joiner, week twoThree visits this week, no programme yet
Sam is free Thu 18:00
Regular who's never booked14 months in, four visits a week
Aisha is free Sat 10:00
Starting to driftDown from three visits a week to one
Sam is free Mon 07:00

No sensors. No cameras. Just your door data.

Vonic reads every entry and exit straight from your access control system, so there is nothing to install on site. Connect it, set each branch's capacity, add the live meter to your website, and you're done.

KisiEntries and exits sync the moment they happen
Live at launch
Using a different system?We add adapters in order of demand. Tap yours to vote.
Owen points to Vonic's three-step setup

Complex underneath. Simple on screen.

Every forecast runs through a pipeline that ingests, cleans, models and retrains around the clock. Your team never has to look at any of it. They get a number, a chart and a nudge.

Under the hood

  1. 01
    IngestEvery entry and exit streams in from your door system the moment it happens.kisi.event door.entry riverside 17:02:41 occ 88/120
  2. 02
    CleanDouble swipes are dropped and missing exits are estimated from each member's usual visit length, so the live count stays honest.dedupe 2 infer_exit m_4821 median_visit 64m
  3. 03
    ModelHourly occupancy is modelled from your history, seasonal trends and calendar events like school terms, bank holidays and January.features hour dow term_time bank_hol jan_effect trend_8w
  4. 04
    ForecastEach branch gets an hour-by-hour forecast with a likely range and the staffing it needs.riverside 18:00 p50 104 p90 112 cap 120 staff +1
  5. 05
    RetrainAfter every visit, the forecast is checked against what actually happened and the model updates.actual 18:00 = 101 error -3 model updated n 18,442

On your screen

Owen checks today's Riverside forecast on a tablet
One chart and one nudge. Add the shift, or dismiss it.

Members rarely quit suddenly. They drift first.

The average gym keeps 66.4% of its members each year, so roughly one in three walk out. Vonic learns what drifting looks like in your own data and shows you who is doing it now.

Health & Fitness Association, 2025 Fitness Industry Benchmarking Report

Churn early-warning

Every member who cancels leaves a pattern. Vonic's engine learns it from your gym's own history and spots the same warning signs in current members, flagging them before they quit, while there's still time to win them back.

Members who join online and visit just once keep paying for around five months before they cancel. The warning is there long before the cancellation.Dr Melvyn Hillsdon & Dr Paul Bedford, retention research via Health Club Management
Flagged this week4 members
No visit in 16 daysUsually trains three times a week
High risk
One visit since joiningJoined online 19 days ago
High risk
Routine brokenWas Mon, Wed, Fri at 18:00. Now irregular
Watch
Visits halvingDown from two a week to one
Watch

At-risk revenue

See exactly how much of your revenue is secure and how much is quietly slipping away. Vonic puts a pound value on every at-risk member, so you know where your income stands and which conversations are worth having first.

Inactive members who are successfully brought back in are 45% less likely to cancel than members who hear nothing.IHRSA Member Retention Report, survey of 13,000+ UK members
Membership revenue this monthAll 4 branches
Secure£48,210
At risk£3,960
Worth a conversation first
Premium, member for three years£89/mo
Standard plus PT pack£72/mo
Off-peak, joined three weeks ago£34/mo

What does churn cost your gym?

Set your numbers. We apply the industry-average retention rate of 66.4%.

Membership revenue that cancels each year£326,794That's about 545 members walking out every year at the industry average. Vonic shows you which ones are drifting now.Find out who's at riskMembers × monthly fee × 12 × 33.6%. Retention rate from the HFA 2025 Benchmarking Report. Defaults are the UK average of 1,621 members per club and roughly £50 a month (£7.29bn market value ÷ 12.1m members), from LeisureDB's State of the Industry Report 2026.

Common questions

Can't see yours? Email [developer@vonic.co] and a person will get back to you.

Kisi, at launch. We're building adapters for other systems in order of demand, so vote for yours in the integrations section or email us.

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Leave your email and we'll let you know when new adapters and features ship.

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Tell us which system you run and we'll look into adding support for it.