Nod: Sleep Debt Tracker

What it does

Nod is a privacy-first, 100% offline utility that calculates your true "Sleep Debt." Unlike bloated trackers, it focuses entirely on the relationship between your actual sleep and biological needs over a 14-night window. Get intelligent bedtime recommendations to pay back your debt safely, all with zero cloud sync or accounts. A one-time Pro upgrade unlocks a tailored, algorithmic recovery plan to safely reduce your sleep debt to zero.

• SD
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