TuckIn

What it does

Your Apple Watch tracks your sleep but never tells you when to go to bed. TuckIn does — one bedtime, updated all day, so you can time your caffeine, workouts, and evening around waking up recovered. What's different: One actionable number, not another dashboard Caffeine cutoff based on its 5.5hr half-life Sleep debt you can actually pay off Personalized algorithm that learns your patterns Apple Watch native, fully on-device Not another tracker. The decision layer on top of it.

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