Fasting Well — Support

Hi. We’re a small team. Every email gets read.

Email: hello@fastingwell.app

If you’re in a hurry, the FAQs below cover the things most people ask first.

Getting started

How do I start my first fast?

Open the app, tap Start fast below the ring. The 16:8 plan is selected by default; you can change to another preset (or build your own) via the plan name at the top.

Which plan should I pick?

GoalTry
Lose weight16:8 (lean) or 18:6
Mental clarity18:6
Longevity36-hour Monk (occasional)
More energy14:10 (gentle)
Gut reset18:6

The Learn tab has more detail on each. If you’re new, start with 14:10 for a week before going longer.

Where does the timer live?

Tap the Timer tab (the flame icon). When a fast is active, the timer shows a ring with the current stage, elapsed time, and remaining time.

During a fast

What do the stages mean?

A fast moves through five biological phases. The ring color changes as you cross each one:

HoursStageWhat’s happening
0–4AnabolicStill digesting your last meal.
4–16CatabolicGlycogen feeding your brain; insulin falls.
16–24Fat-burningLipolysis ramps up; ketones start.
24–48KetosisBHB becomes a primary brain fuel; autophagy accelerates.
48–72+Deep ketosisGrowth hormone peaks; autophagy at its strongest.

Open the Learn tab → “The five stages of a fast” for the long version.

Can I edit my start time?

Yes. On the active timer view, tap the Started card. You can nudge forward / back in 5 / 15 / 60-minute increments, or pick “Now.”

What’s the “End fast — log it” vs “Discard fast” difference?

Will the app remind me about anything?

Yes, if you enable it. Settings → Notifications:

All notifications are local — your phone schedules them, no server involved.

Apple Health / Health Connect

Will Fasting Well show up in Apple Health?

Yes, on iOS if you enable Settings → Health → Sync with Apple Health. Completed fasts are written as Mindful Minutes alongside meditation sessions. The app will also offer to import your most recent weight when you tap “Log weight.”

What about Google Fit / Health Connect on Android?

Same setting on Android. We currently only import weight from Health Connect — Google’s Health Connect doesn’t have a record type for fasting yet. We’ll add fast write-back when they ship one.

Custom protocols

How do I make a custom protocol?

Tap the plan name at the top of the Timer → Plans modal → scroll to Custom protocols → Create custom protocol. Set your fast/eat hours, give it a name, save.

Can I have multiple custom protocols?

Yes — you can create as many as you want. They all live in the Plans modal.

Data & export

Where is my data stored?

On your device, in the app’s local storage. There is no server, no account, no cloud sync.

How do I back up / export my data?

Settings → Data → Export fasts (CSV) or Export weights (CSV). The app generates a CSV file and opens the system share sheet so you can save it to Files, email it to yourself, etc.

How do I delete everything?

Settings → Data → Reset everything. This wipes every fast, weight, custom protocol, and preference instantly. It cannot be undone.

Will my data sync across my devices?

Not in v1.0. If you reinstall or get a new phone, your data starts fresh. We’re considering optional iCloud / Google Drive backup for a future version — email us if you’d like to be told when it ships.

Privacy

What does Fasting Well send to your servers?

We don’t have any servers that hold your fasting data. We use PostHog for anonymous usage analytics — see the full privacy policy at https://fastingwell.app/privacy for the exact list. Short version: we send the names of actions you take (e.g. “a fast was completed on the 18:6 plan”) but never the values (no weight numbers, no fast durations, no mood/notes content).

How do I turn analytics off?

Settings → Privacy → toggle off Share anonymous usage data. Takes effect immediately.

Pro tier

Is the app free?

Yes — the current version is fully free. No ads. No paywalls.

What’s “Fasting Well Pro” in the Settings sidebar?

It’s a preview of a Pro tier that will launch in a future update. Tapping it shows what’s coming and lets you opt into a “notify me when it launches” signal. As a thank-you to early users, everyone who installed v1.0 will get lifetime Pro for free when it launches.

Troubleshooting

The app is stuck / crashed / behaving weirdly.

Force-quit and reopen. If it’s still broken, restart your phone. If it’s still broken, email hello@fastingwell.app with what happened — we’ll fix it.

I lost my fast / it didn’t save.

Open Settings → Data. If a fast didn’t make it into the Journal, it might still be in your active fast (if you didn’t tap End). If neither — and you’d been fasting for a while — email us and we’ll see if we can help recover from your local storage.

My notifications aren’t firing.

Check iOS Settings → Notifications → Fasting Well → make sure they’re enabled. Same on Android in Settings → Apps → Fasting Well → Notifications.

I can’t sync with Apple Health.

Open iOS Settings → Apps → Health → Data Access & Devices → Fasting Well → make sure all the toggles you want are on.

I can’t sync with Health Connect (Android).

Make sure Health Connect is installed (it’s pre-installed on Android 14+; earlier you may need to install it from the Play Store). Then in our Settings → Health, toggle sync on and grant permissions when prompted.

Feedback & feature requests

We genuinely want to hear what would make the app better for you. Email hello@fastingwell.app.

Things we’re already considering for future versions:

If you have a medical condition, are pregnant, are nursing, or are under 18, please consult a healthcare provider before practicing extended fasting. Fasting Well is a tracking tool, not medical advice.