Refast is an intermittent fasting timer for iPhone, iPad, Mac, Apple Watch and Apple Vision Pro. It does one thing, it lets you fix the times when you forget, and it does not try to be your coach.
Need help, found a bug, or want a feature? Email leonfigueira@gmail.com and you will get a reply from the person who wrote the app.
I forgot to start it last night. Tap the pencil on the running fast, or tap the Started time underneath the ring. Use the -2h or -1h buttons to move the start back, then Save. The ring and every number update immediately.
I forgot to stop it this morning. Same screen - set the Ended time to when you actually ate. Refast refuses times that overlap another fast or sit in the future, so you cannot corrupt your history by accident.
I did a fast but never opened the app. History, then +. Set the start and end and it is logged, marked as added by hand so your records stay honest.
The Lock Screen timer disappeared overnight. That is iOS, not Refast. A Live Activity is allowed to run for eight hours and stays frozen on the Lock Screen for four more, so on a 16-hour fast it goes quiet in the small hours. There is no setting that changes this - it is a system limit. Add a Refast widget to your Lock Screen instead: widgets keep counting the whole way through and will be right there in the morning.
Can I start a fast without opening the app? Yes. Add the Start or End a Fast control to Control Centre, your Lock Screen or the Action button - one tap begins a fast and one tap breaks it. You can also just ask Siri to start or end your fast.
What happens when I pass my goal? Refast keeps counting. The ring turns gold and it tells you how far past you went, instead of freezing at 100%.
Does it sync between my devices? Yes, through your own iCloud account, with Refast Plus. There is no account to create and no server of ours involved.
Will it nag me? No. Refast sends one notification - when your fast reaches its goal. There is an optional halfway reminder that is off unless you turn it on. That is the entire list, and there will never be a streak-shaming notification.
Is there a subscription? No, and there never will be. The timer, every plan, all the widgets, the Live Activity and the Watch app are free and do not expire. Refast Plus is a single payment that opens your full history, the detailed trends, saved custom plans and iCloud sync, and it covers every device you own.
I paid but it is asking again. Settings, then Restore purchase. Make sure you are signed in with the Apple Account you bought it on.
Refast works with VoiceOver - the ring reads out as a sentence rather than as a picture - follows Dynamic Type, and respects Reduce Motion. If something is hard to read or hard to reach, please email me. That is a bug worth fixing.
Fasting is not right for everyone. If you are pregnant or breastfeeding, taking insulin or diabetes medication, under 18, or have a history of disordered eating, please speak to a doctor before you start. Refast is a timer - it is not medical advice and it will not pretend to be. If you are struggling with food, a timer is not the right tool, and talking to your GP or a support service is.
Refast collects nothing. See the Refast privacy policy.
Runlow, Recast, Recomp, Reprompt and Refast - all pay-once, no subscription.
Refast is made by Leon Nelio Figueira. Last updated 12 August 2026.