About this app
One Day is a simple, private daily tracker. Choose something meaningful to track—a habit, goal, reflection, task, or small daily win. Mark the day, add a short note or optional photo, and move on. There’s no complicated system to follow and no pressure to optimize. One Day gives you a calm way to see your progress, one day at a time. WHAT YOU CAN TRACK - A habit you’re building - A daily goal or intention - Something meaningful you did - A moment you want to remember - Anything else you choose FEATURES - Tap a day to mark it - Add a short note - Attach an optional photo - View your calendar by month or year - See days marked, streaks, and progress - Choose different themes, colors, fonts, and calendar shapes - Set an optional daily reminder - Track one challenge for free ONE DAY PREMIUM One Day Premium lets you track multiple independent challenges. Every challenge has its own calendar, notes, photos, appearance, and progress. Premium is available as a monthly or annual auto-renewing subscription. The annual plan may include a 7-day free trial for eligible users. Available plans, localized prices, and trial terms are shown before purchase. PRIVATE BY DESIGN - Your entries, notes, and photos stay on your device - No account is required - No advertising or advertising trackers - Photo access is requested only when you choose to add an image - Apple and RevenueCat process purchase information only when needed to provide and restore Premium access Subscription payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription through your App Store account settings. Privacy Policy: https://onedayjournal.app/privacy Terms of Use: https://onedayjournal.app/terms
Latest release
What’s New
One Day 2.0 is our biggest update yet. - Track multiple challenges, each with its own calendar, notes, photos, and progress. - Switch smoothly between monthly and full-year views. - Tap attached photos for a larger, full-screen preview. - Start tracking immediately with a simpler onboarding experience. - Set an optional daily reminder to keep your momentum. - Explore redesigned Settings and expanded appearance options. - Enjoy improved navigation, reliability, performance, and data handling.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 25, 2026 · 8:03 AM Free