SaveChallenge

Start a 52-week, penny, no-spend, or custom savings challenge and track every deposit — on-device, no bank links.

Savings challenges work through structure rather than arithmetic. The 52-week version — one pound in week one, two in week two — totals £1,378 and succeeds because each step is trivially affordable and skipping one is visible. Some people reverse it, front-loading the large weeks so the hard part is not December.

No-spend challenges do something different, interrupting habitual purchases long enough to notice them. The mechanism common to both is a commitment made in advance, when you are deciding well, that constrains the moment when you are deciding badly.