
Ember - Fasting Tracker
Ketosis zones, timer & streaks
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Free
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About
Ember is the fasting tracker that tells you the truth. No pseudoscience. No guilt. Just your journey, visualised. Try Premium free for 7 days.
Track your intermittent fasting with beautiful, real-time zone visualisation. Ember guides you through five science-backed metabolic zones — from post-meal processing to deep fasting — with honest language about what's happening in your body.
REAL-TIME ZONE TRACKING
Watch your progress through five metabolic zones with a stunning journey-map visualisation. Each zone is backed by published research, and we use honest language like "likely" and "research suggests" — because your body is unique.
MULTIPLE FASTING PROTOCOLS
Choose from popular intermittent fasting schedules:
- 16:8 — The most popular daily fast
- 18:6 — A step up for experienced fasters
- 20:4 — The warrior diet approach
- OMAD — One meal a day (Premium)
- 36-hour — Extended fasting (Premium)
- Custom protocols (Premium)
BEAUTIFUL TIMER
A warm, minimal timer with a circular progress ring that changes colour as you move through zones. Long-press to end a fast — no accidental taps.
FASTING HISTORY
View your fasting calendar as a heat map, inspired by contribution graphs. See your patterns at a glance with four intensity levels based on fast duration.
STREAKS & STREAK SHIELD
Build a daily fasting streak and watch your flame grow. Miss a day? Streak Shield (Premium) lets you repair a broken streak so one slip doesn't erase weeks of progress. View your total fasts, total hours, average duration, and longest fast.
WEIGHT TRACKING
Log your weight and see trends over time with a clean area chart. Your weight data stays private and secure.
POST-FAST REFLECTIONS
After each fast, capture how you felt, what broke your fast, and any notes. Build a personal journal of your fasting journey.
OFFLINE-FIRST
Ember works without an internet connection. Your data syncs to the cloud when you're back online.
PREMIUM FEATURES
Start with a 7-day free trial, then unlock the full Ember experience:
- Streak Shield — repair a broken streak after a missed day
- Full fasting history (free tier shows 7 days)
- Advanced analytics and charts
- OMAD and extended (36-hour) protocols
- Complete weight trends
- Unlimited fasting journal
- Meal window reminders
DESIGNED WITH CARE
Ember features a warm minimalist design with a signature orange accent on dark backgrounds. Built for focus, not distraction.
HONEST SCIENCE
Every zone threshold is based on published research from leading journals. We cite our sources and acknowledge uncertainty — because that's what real science looks like.
Your data is stored securely on AWS servers in the UK (London region), encrypted at rest and in transit. You can export or delete your data at any time.
SUBSCRIPTION INFORMATION
Ember Premium is offered as an auto-renewable subscription (Monthly or Annual), each starting with a 7-day free trial. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your Apple Account settings.
Terms of Use (EULA): https://ember.wolftechnologies.co.uk/terms.html
Privacy Policy: https://ember.wolftechnologies.co.uk/privacy.html
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What's New in Ember
1.0.6
August 1, 2026
Introducing Streak Shield — repair a broken streak so one missed day doesn't erase your progress. Plus a 7-day free trial on Premium, a post-fast journal, and meal window reminders.
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