Fast Signal
iOS app by Backbone Services. Health & Fitness · Backbone Services
- Store rating
- 0 / 5
- Store rating count
- 0
- Download price
- Free to download
- In-app purchases
- Unknown
- Version
- 1.8
- Listing last refreshed
- 2026-09-15
View the original store listing
Store description excerpt
Fast Signal connects your fasting, keto, and training data to the health metrics that actually matter — HRV, VO2 max, cardio recovery, sleep, and more. WHY FAST SIGNAL Most trackers show you numbers. Fast Signal pulls your real Apple Health data and connects it to your fasting windows, keto adherence, and training load — so you can see what's actually moving the needle, not just log another data point. THE FASTING TIMER, DONE RIGHT Start and end your fast with one tap. Watch the ring fill in real time, track your fasting window automatically, and see your prolonged-fast streak build over time. TRACK WHAT MATTERS Weight, body fat %, lean mass, and BMI Interval runs, non-stop runs, and HIIT — auto-detected and tracked separately, with pace and heart rate Resting heart rate, HRV, VO2 max, cardio recovery, and sleep Keto adherence, junk food, alcohol, illness, travel, and mood Weather and altitude context for every day Set weekly goals and pin up to 3 favorite metrics to watch daily AI-POWERED INSIGHTS Fast Signal reviews your week and month and narrates what's actually going on — in plain language, grounded in your real data, not generic advice. Insights account for real-world context, too: illness, travel, altitude, and weather, so a rough patch doesn't get mistaken for a bad trend. LEARN AS YOU GO A built-in Learn tab covers the basics of intermittent fasting, keto, and the metrics Fast Signal tracks — so you always know what you're looking at and why it matters. START FREE Track everything, start your first fast, and see your trends — free. Upgrade anytime to unlock AI-generated insights and expert-informed guidance. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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