We know which members will cancel.And which ones we can keep.
Quant-grade models predict when each member will leave. We help you act only where it pays, and prove the difference we make against a control group, every month.
Built like a trading model, not a CRM feature.
Most retention tools flag who might leave. Tether’s proprietary model finds the members who will stay because you reached out, and measures every result against a control group. Every gym that joins makes the model sharper, so you learn from our mistakes.
- Most of the risk falls
- Day 12–30
- Chance they cancel in 60 days
- 74% (likely 59–89%)
- Chance they stay if acted on by day 10
- 71%
- Act by
- Day 10
We prove we kept 10 members at £30 a month.You pay £300, once.
They stay on and keep paying you.
- Fee
- One month's membership per member kept
- Measured against
- A control group of members we leave alone
- Billed
- When a flagged member pays the month they were going to cancel
- First month
- Free. See what you'd have paid before you pay anything.
- Cap
- You set a monthly limit. We never bill above it.
- Setup
- £0
Straight answers.
Do you see my members’ names?
No, we only see IDs, never names or contact details.
Is it GDPR compliant?
Yes, we sign a UK GDPR data processing agreement with you before any file moves.
Where is my data kept?
Encrypted in the UK or EU, and it’s never sold or used to train third-party AI.
Can I get my data deleted?
Yes, any time, with written confirmation.
See who you could have kept last year.
We run our model on your last 12 months of members and show you who it would have flagged before they left. Free.
- 01Fill in the form.
- 02Send us one export from your gym software.
- 03Get your report within 5 working days.