CellaLonga: Longevity Fasting
Timer, Stages & Streaks
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Fasting isn't a diet, it's a longevity practice. Follow your body's real metabolic phases, named honestly, hour by hour.
Fasting isn't a diet. It's your longevity lever — measured honestly, owned for life.
CellaLonga follows your body through the real metabolic journey of a fast: fed, glycogen, the metabolic switch, fat-burning, ketosis, autophagy, and deep autophagy — rendered as a living ring, not a countdown timer.
THREE LAWS OF HONESTY
Most fasting apps blur the line between what's known and what's guessed. CellaLonga never does:
• Estimated, refined, and measured are always labelled — never confused.
• Autophagy is always shown as an estimate. No consumer device can measure it directly, no matter what other apps claim.
• Ketosis is the only stage that can become "measured" — and only if you log a real ketone reading. Every source is cited, with its caveats.
YOUR OWN MIRROR
See honest, non-causal correlations between your fasting windows and how you actually feel, sleep, and recover — never a single statistic without the data behind it, never a claim before there's enough of it.
LONG FASTS, DONE RESPONSIBLY
24 to 72-hour fasts come with a real safety brief — hydration, warning signs, how to break a long fast gently — not just a longer timer.
OWN IT, DON'T RENT IT
One purchase unlocks full sources, measured mode, long fasts, your complete mirror, and unlimited history. No subscription. No guilt quizzes. No countdown pressure.
PRIVATE BY DESIGN
CellaLonga has no backend, no account, and collects nothing. Apple Health connection is entirely optional and only enriches what already works from a simple daily log.
CellaLonga is informational only and is not medical advice. Consult a clinician before attempting extended fasts, especially if you take medication or have a medical condition.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Minor improvements and bug fixes.
Thanks for using CellaLonga! A review on the App Store is a huge help.
The developer, Thanh My DUONG, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Thanh My DUONG
- Size
- 12.4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
English and 4 more
- English, French, German, Japanese, Spanish
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Nerd Mode — Lifetime $19.99
- Copyright
- © 2026 Mythadubiz