If there was a way to cancel it without being at the location, that would destroy the use case. The app is targeted at people who know they don't have any willp

If there was a way to cancel it without being at the location, that would destroy the use case. The app is targeted at people who know they don't have any willpower and therefore it ought to be strict. Sorry for your wife, but I think building this feature would be a mistake. (For the record - apologies to people with no willpower - you could presumably cancel it by revoking the app's Twitter access)