Resalent

The app monitors biometric signals such as sleep duration, heart‑rate variability, heart rate, as well as calendar entries and weather conditions to build a real‑time picture of a user’s physiological state. After a seven‑day calibration period it learns patterns of focus, recovery and optimal windows, then uses that model to suggest the most suitable moment for each habit. Notifications are presented as gentle nudges that appear only when the user’s body state aligns with the habit, and the user can complete or skip with a single tap.

Designed for people who already intend to form habits but struggle with timing, the tool aims to reduce missed or ignored reminders by delivering prompts at moments of “resonance.” It operates entirely on the device, stores data locally, and includes three habits at no cost. The experience emphasizes low pressure, avoiding streak tracking or guilt, and focuses on aligning actions with personal rhythms rather than imposing fixed schedules.