Put money on your habit. Do it with your mates.

Make a pact with your mates

Pick a habit and how often, like run 3k three times a week. Anything you can say yes or no to before bed.

In a group, you all do your thing once today, or a set number of times each week by Sunday. You share one stake, £10 to £500, and each pick your own habit.

Solo works too: £2 to £100 for each missed check-in, for 4 to 16 weeks. Read the full guide

Seal it together

Everyone reads the pact and agrees to the shared stake. The week locks in at Monday 00:00 once two of you are in. Priya and Tom have sealed this one. You're the last to press.

Your card is saved, not charged. Nothing is charged up front.

Check in on your honour

Each time you do it, tap Check in. Nobody audits you. Your word is the record, and your buddies see it.

Priya runs before work. Tom goes to the gym at lunch. You run in the evening. Different habits, one target: 3 times by Sunday.

Your mates see every check-in

Each of you fits it in when you can, and the whole group sees the week fill in.

Tom skips Thursday, and by Sunday night he's on 2 of 3. That's a miss, and with a shared stake it costs the whole group the week.

What a miss costs

When the week is settled, each of you pays your own stake, once. Yours is £10, in one card payment: £8.50 donated to Médecins Sans Frontières UK and a £1.50 Pledgd fee.

• Nothing charged up front. Only after a miss.
• Nobody wins money. Not even your buddies.
• Hit together, or pay together. Everyone agrees to the shared stake first.

Where the £8.50 goes

Every donation from a miss goes to Médecins Sans Frontières UK, passed on in regular monthly payments.

MSF's teams give medical care to people caught up in conflict, epidemics and disasters.

85% of every missed pledge is donated to the charity you chose, currently Médecins Sans Frontières (UK), registered charity no. 1026588. The other 15% is Pledgd's separate platform fee.