Tidewake
Tidewake wakes you in light sleep, up to 45 minutes before your alarm. Everything runs on the watch, so at night the phone can stay in another room.

How it works
You set the alarm time and a wake window: 10, 20, 30 or 45 minutes. The night starts by itself when the watch sees you have fallen asleep. In the window Tidewake follows your heart rate and rings when your sleep turns light. If that moment doesn't come, it rings at the alarm time. Never later.
The alarm starts softly and grows to full strength. In the morning you see when you woke up, in which sleep stage and how long you slept.
Made for Zepp OS watches and tested on Amazfit T-Rex Ultra 2.
Free and Pro
Free, with no time limit:
- an alarm at a set time, up to 5 alarms, repeated on the days you choose,
- snooze, vibration patterns and the Classic sound,
- the morning report and the history of your last 30 nights.
Pro, €3.99 once, no subscription:
- the wake window with light-sleep detection,
- gentle vibrations before the alarm,
- a wake-up that starts softly, more sounds and a gentle fade-in.
Every new install gets 14 days of Pro for free. After that the morning report tells you when Pro would have woken you.
Polar sells Tidewake Pro for us as the merchant of record. It handles the payment, the receipt, VAT and refunds.
Activating Pro
- Buy Pro. Polar e-mails you the license key.
- In the Zepp app on your phone open Tidewake's settings: Profile, your watch, apps, Tidewake.
- Paste the key and tap Activate.
- Open Tidewake on the watch with the phone nearby. Pro unlocks and stays unlocked without the phone.
Privacy
Your sleep and heart-rate data never leave the watch. The only thing that goes online is your license key, from the Zepp app to Polar. Details in the privacy policy.
Contact
A question, a lost key, a bug: kontakt@softime.pl