Winterlock: Winter Arc Tracker
90-Day Challenge & Daily Rules
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Your Winter Arc, tracked.
The Winter Arc is simple: while everyone else coasts through the cold months, you lock in. Pick your window (Oct 1 to Dec 31 is the classic), write the daily rules you refuse to skip, sign your name, and show up every single day.
WRITE YOUR NON-NEGOTIABLES
Up to 10 daily rules: train every day, 10k steps, no alcohol, read 10 pages, up before 6, no phone after 9pm. Yours, in your words. Tap a suggestion or type your own.
SIGN THE CONTRACT
A contract card with your rules, your dates and your signature. Post it before day one. Telling people is half the discipline.
CHECK IN. LOCK THE DAY.
Every day, check off each rule. All of them done = a perfect day and a streak. Miss one and the grid shows it. No hiding.
WATCH THE ARC FILL UP
A 92-day grid (or however long you set), perfect-day streak, best streak, rules hit rate, days left. Share the progress card whenever you want.
BUILT FOR THE LONG HAUL
- Optional daily reminder at the hour you choose
- Works fully offline. No account, no sign-up, nothing leaves your phone
- Any dates: Oct 1 to Dec 31, 90 days from today, Nov 1 to Jan 31, or your own
- Available in English, German, Spanish, Portuguese, French and Italian
Free to use, supported by a small ad on the progress screen. Your check-in list stays ad-free, always.
Winterlock is a habit tracker, not a coach or a medical tool. The only thing it measures is whether you kept your word.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Fixes missing labels in Settings.
The developer, GCL Tech, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- GCL SERVICOS DE TECNOLOGIA DA INFORMACAO LTDA
- Size
- 36.3 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026 GCL Tech