FAST
Esurio
iPhone & Android · free

One button.
One number.

Esurio is intermittent fasting stripped to the essential: tap to start, tap to end, and watch one live number climb toward your target. No streaks, no shame, no clutter.

Download on theApp Store GET IT ONGoogle Play

Store links activate at launch.

Esurio Tue, Jun 30
Fasting
7h 23m 04s
46% of 16h target
Started
7:36 AM
End fast
16h
18h
20h
24h
History
Jun 26 · 7:36a → 11:52p16h 16m
Jun 25 · 8:10a → 9:40p13h 30m

Why Esurio

Everything you need to fast. Nothing you don't.

One button, two states

Eating? Tap Start fast. Fasting? Tap End fast. That's the entire interaction — a single primary action that always reflects exactly where you are.

A live number that never lies

Your elapsed fast ticks up second by second, always computed from the moment you started — so it's right whether you check after a minute or a full night's sleep.

Set your target, not your rules

Pick 16, 18, 20, 24 hours or a custom window. The dayband fills toward it — but the target never gates you. Stop a fast whenever you like, no penalty.

Every fast, on the record

Completed fasts land in a clean history with start, end and duration. The ones that hit your target glow green, so progress is something you see, not something you're nagged about.

Legal

Privacy Policy

Last updated: 30 June 2026

Esurio ("the app", "we", "us") is built around a simple principle: your fasts are yours. This policy explains what the app stores, how it is used, and the choices you have.

1. Information we collect

Esurio stores the fasts you choose to record, each consisting of a start time, an end time, and your chosen target duration. These entries are saved locally on your device by default. We do not require an account, and we do not collect your name, email, contacts, photos, precise location, or health data from other apps unless you explicitly enable an integration.

2. How we use your information

Your fast times are used solely to display your elapsed fast, your progress toward your target, and your history within the app. We do not use your data for advertising, and we never sell it.

3. Analytics & third parties

If enabled, we may use privacy-respecting, aggregated analytics to understand app stability and feature usage. Such analytics never include your individual fast records and cannot identify you personally. We do not share personal data with advertisers or data brokers.

4. Health disclaimer

Esurio is a tracking tool, not medical advice. Intermittent fasting is not appropriate for everyone. Consult a qualified healthcare professional before starting any fasting regimen, particularly if you are pregnant, nursing, under 18, or have a medical condition.

5. Your rights

Because your data is stored on your device and under your control, you can access, export, or erase it directly in the app. If you have questions about your rights under the GDPR, CCPA, or similar regulations, contact us using the details below.

6. Changes to this policy

We may update this policy as the app evolves. Material changes will be reflected here with a revised "Last updated" date.

7. Contact

Questions about this policy? Reach us at emanuel.miron6@gmail.com.

Support

Found a bug, have a feature idea, or need help with your data? We read every message and usually reply within two business days.

Email support emanuel.miron6@gmail.com
Developer Emanuel Miron