KYNIO, fasting without the hype
An intermittent fasting tracker from Portugal that shows your estimated fasting phase and the limits of the evidence behind it, with your logs kept on your phone.
Descriptions
50 words
KYNIO is a calm intermittent fasting tracker for Android and the web. It shows the phase your body is likely in, hour by hour, and says plainly what studies have and haven't shown. Meals can be logged from a photo, with an AI estimate you review. No ads, and no account required.
150 words
Most fasting apps promise exact milestones: fat burning at 12 hours, autophagy at 16. KYNIO takes a different line. It shows six estimated phases, from digestion to 48 hours, based on the time since your last meal, and each one comes with its limits written next to it. The exact start of autophagy, for example, has never been measured directly in humans, and the app says so. KYNIO Pro adds the biology of each phase and the eight PubMed-indexed studies behind them.
Beyond the timer, KYNIO logs meals from a photo or text, with an AI estimate the user edits before saving, plus water, weight and workouts. A grace day keeps a streak alive after one missed day. The app works without an account, logs stay in a local database on the phone, and there are no ads. It is available in English and European Portuguese, on Android and at kynioapp.com/app.
Key facts
- Made in
- Portugal, by an independent developer
- Platforms
- Android (Google Play) and web at kynioapp.com/app, which also runs in Safari on iPhone
- Languages
- English and European Portuguese
- Free
- 16:8, 18:6 and 20:4 fasts, the six estimated phases, 3 AI meal estimates a day, water, weight, workouts, streaks with a grace day, data export and deletion
- KYNIO Pro
- Each phase's biology, tips and PubMed references, OMAD, 36 h, 48 h and open fasts, unlimited meal estimates, cloud sync, a PDF habit report and extra themes
- Price
- Pro from €5.99 a month, €42.99 a year or €84.99 once. Google Play shows the price for each country.
- Privacy
- No ads and no account required. Logs stay on the phone unless the user turns on cloud sync. Meal photos are sent for analysis and are not stored by that feature.
- Not
- A medical device or medical advice. The app shows estimates and tells people to talk to a doctor before long fasts.
Logos and images
Free to use in coverage of KYNIO. Updated app screenshots are available on request.
App icon · 1024 × 1024 PNG
App icon · 512 × 512 PNG
Feature graphic · 1024 × 500 PNG
Social image · 1200 × 630 PNG
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Contact
Interviews, questions and Pro codes for review:
suporte@kynioapp.com