C3ntro vs HardStreak

Download the C3ntro App today to plan and schedule your classes! From this mobile App you can view class schedules, sign-up for classes, as well as view the studio’s location information. Optimize your time and maximize the convenience of signing up for classes from your device! Download this App today!

HardStreak is a private daily challenge tracker built for the long way. Choose a structured preset or create a challenge with your own duration and daily tasks. Finish the work, then deliberately seal the day into your private Proof Ledger. Each read-only receipt preserves the completed tasks, water total, photo status, optional reflection, and exact closeout time. On Strict Path, checking boxes is not enough: the day must be complete and sealed before you can advance. Sealed days cannot be edited later, so the streak reflects records you actually closed—not time that merely elapsed. FREE FEATURES - Structured challenge presets - Daily task checklist - Timestamped, read-only Proof Ledger receipts - Deliberate daily closeout with optional reflection - Strict Path advancement based on sealed proof - Honest sealed-day and streak statistics - Water tracking by challenge day - Finish-line progress and completion summary ONE-TIME UNLOCK - Custom challenge durations and tasks - Private progress-photo gallery - One purchase with no recurring subscription PRIVATE BY DESIGN There is no account, advertising, analytics SDK, or cross-app tracking. Challenge data stays on your device. Existing photos are selected with Apple’s private system picker, and new photos are stored inside the app. Build the challenge you can finish, then keep showing up.