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An honest intermittent-fasting timer. No ads, no account.
An honest intermittent-fasting timer. No ads, no account.
Start a fast in one tap and see what is commonly understood to be happening in your body hour by hour, from your last meal to ketosis and beyond. Every stage tells you how solid the science is: well-established, emerging, or early research. Your history stays on your device, editable and trustworthy. Educational only, not medical advice.
Highlights
Highlights
One-tap fasting timer with live stages
Evidence ratings on every stage
Editable fasting ledger and calendar
No ads, no account
Pricing
Pricing
Free core timer. Havien Pro is a one-time purchase. No subscription.
FAQ
FAQ
Is Havien medical advice?
No. Havien is educational. Talk to your doctor before fasting, especially if you have a medical condition, are pregnant, or take medication.
How do I restore Havien Pro?
Tap Restore Purchases in Settings, signed in with the Apple ID you purchased with.
Where is my data stored?
Only on your device. Havien has no account and no server.
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