fitbond
A person running along an underground platform for a train as its doors close

Behavioural science for follow-through

Mind the intention–behaviour gap.

Complete your fitness goal, or lose your money.

The FitBond Locked in screen: £25 is on the line from Monday for Morning Gym Club; your deposit £25 locked, held until 19 Oct; Go to Home and Invite people buttons

Create a Bond: the goal, how long you’ll keep it up, and how much you lose if you don’t stick to the plan. We verify it automatically from your fitness data and return your deposit — or it goes to the people who stuck to theirs.

How it works.

Make intention binding.

Choose a measurable goal, put down a deposit, and connect your fitness data. FitBond verifies the work and settles the outcome under rules agreed upfront.

Bond type

Verified by

The real FitBond source screen with Apple selected

Bond outcomes

Where the money goes.

A Bond can return your deposit, share a settled pool, support a charity, or fund a separate prize. Each example is hypothetical; the Bond’s published rules, fee snapshot and prize terms shown before joining govern actual outcomes.

01 / 06 · Shared goal

Fit Bond

If you finish
Finish your goal: your deposit comes back as Coupons, plus any share due under the Bond rules.
If you miss the goal
Miss it: your deposit joins the shared pool. Finishers share what remains after the fee fixed in that Bond’s rules.

Fees and prize

The current 15% Platform Fee is taken from forfeited deposits before the remainder is shared. The fee snapshot and rules are shown before you join.

Illustrative example

Assume eight people each deposit £40, five finish and three forfeit, with a 15% fee snapshot. The £120 forfeited pool incurs an £18 fee, leaving £102 (£20.40 each) for the five finishers. Each also gets their £40 deposit back: £60.40 in Coupons.

If you finish
Finish your goal: your deposit comes back as Coupons, plus any share due under the Bond rules.
If you miss the goal
Miss it: your deposit joins the shared pool. Finishers share what remains after the fee fixed in that Bond’s rules.

Fees and prize

The current 15% Platform Fee is taken from forfeited deposits before the remainder is shared. The fee snapshot and rules are shown before you join.

Illustrative example

Assume eight people each deposit £40, five finish and three forfeit, with a 15% fee snapshot. The £120 forfeited pool incurs an £18 fee, leaving £102 (£20.40 each) for the five finishers. Each also gets their £40 deposit back: £60.40 in Coupons.

Your questions, answered.

Every Bond has rest days built into its rules — the card shows how many you have left. Use one and the day doesn’t count against you. Run out, and a missed day is missed.

From our early testers

A little nudge. A real difference.

A reason to go today

“‘I’ll go tomorrow’ used to be my excuse more often than I’d like to admit. With a Bond running, that excuse stops working. I’ve made the promise and put down my own deposit, so I’m out the door today, even on the evenings I’d rather not.”

Muhammad

Better with friends

“Our group chat was full of fitness plans that never happened. Now we’re in a Bond together with a shared goal, and a nudge from a mate is much harder to ignore. It’s more of a laugh, too.”

Olu

My goal, my deposit

“I chose the goal and the deposit: enough to feel it, not enough to lose sleep over. Every other plan I’ve tried was someone else’s. This one’s mine, so I want to keep it.”

Florence

47.4%

Volpp et al. · JAMA · 2008

A small randomized trial found stronger short-term results with deposit contracts.

In a 57-person, 16-week weight-loss trial, 47.4% of the deposit-contract group met the target versus 10.5% of the control group. The longer-term difference was not statistically significant, so this is evidence for the mechanism—not a guarantee for every goal.

Read the research and limitations →
£7.99
per month after the monthly trial
7 days
free on the monthly plan
3
concurrent active Bonds
£1,000
maximum deposit by card