A free fasting timer with estimated metabolic phases, Last Meal start, and no account. Your data stays on your device.
A calmer timer, clearer phases, and a faster way to start - all still free, still private.
A calmer ring shows your elapsed hours and your current phase at a single glance. No clutter, no noise.
Follow five phases from fed to autophagy, estimated from typical fasting timing, with plain-language notes.
Begin from when you actually finished eating - not just when you opened the app - for a truer count.
Fully translated, including right-to-left, so IF24 reads naturally wherever you are in the world.
No sign-up and no cloud sync. Your fasting history lives only on your device - and nowhere else.
The same calm screen, from your first tap to a completed fast.
Switch to Immersive and the ring glows with the phase you're in - a quiet companion through the evening and the overnight fast.
IF24 is built to stay out of your way - and out of your data.
Open the app and start. No email, no password, no profile.
IF24 doesn't track you or send your fasts to a server.
Your history is kept locally, on your iPhone, under your control.
Yes. IF24 is free to download and use, with no account and no subscription.
No. IF24 doesn't measure anything in your body. The phases it shows are estimated, based on typical fasting timing, and are for general information only.
No. There's no sign-up. Your fasting history stays on your device.
Common time-restricted schedules like 16:8, 18:6 and 20:4, plus custom windows and the Last Meal start.
Free, private, and ready whenever you are. No account needed.
IF24 is a general wellness and timing tool, not medical advice. The metabolic phases shown are estimated, based on typical fasting timing. Consult a qualified healthcare professional before starting any fasting practice.
IF24 is a free, no-account alternative. See how it compares:vs Zerovs Fasticvs BodyFast
A calm, free intermittent fasting timer for iOS. No account. Your data stays on your device.
IF24 is a general wellness and timing tool, not a medical device. The metabolic phases it shows are estimated, based on typical fasting timing, and are not a measurement of your body. IF24 does not provide medical advice. Consult a qualified healthcare professional before starting any fasting practice, especially if you are pregnant, nursing, taking medication, or managing a health condition.