Sum of Days: Life Tracker

About this app

Track what matters. Understand what changed. Sum of Days is a private life tracker for habits, health, mood, symptoms, personal numbers, notes, and everyday routines. Record in seconds, see your history across days and years, and turn it into a clear review with every finding linked to the days behind it. A TRACKER THAT GIVES SOMETHING BACK Review compares the current week, month, or year with the previous period. See meaningful value changes, shifts in how often you recorded, standout days, and items that moved together. The analysis happens on your device, and you can open the exact dates behind each finding. TRACK LIFE YOUR WAY • Record numbers, daily totals, habits, statuses, short text, and longer notes • Create custom items with your own name, icon, color, unit, range, goal, and schedule • Add entries quickly, set flexible reminders, and keep key trackers on your Home Screen with widgets • Connect supported Apple Health data, including steps, weight, height, exercise time, walking and running distance, active energy, stand hours, and sleep SEE THE SAME HISTORY FOUR WAYS • Day gives you a focused daily dashboard • Month reveals what happened across the calendar • Timeline lets you scan complete days without hiding the details • Year turns hundreds of entries into a readable life map UNDERSTAND EACH ITEM Open Item Lens to see a full year at a glance, then switch between Line, Bar, Calendar, and All-Time views. See totals, averages, latest values, and patterns without losing the records behind them. MADE FOR THE APPLE ECOSYSTEM Use Sum of Days on iPhone, iPad, Mac, and Apple Watch. Add and review data wherever it is most convenient, use widgets for quick access, and sync records across devices with your private iCloud storage. PRIVATE BY DESIGN No Sum of Days account is required. Your tracked values stay on your devices and in your private iCloud storage when sync is enabled. Review and Year insights are generated on device. SUM OF DAYS+ Use the core tracker for free. Sum of Days+ unlocks unlimited items, more icons and colors, custom ranges and goals, and app locking with Face ID or Touch ID. Choose monthly, yearly, or lifetime access. Subscriptions are billed through your Apple Account and renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel subscriptions in App Store account settings. Record what matters. Review what changed. See the sum of your days. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

JustTrack is now Sum of Days. A clearer name for the same app and the same private records. Your data, iCloud sync, purchases, and Sum of Days+ access are unchanged. No migration is needed. • Review meaningful changes across the current and previous week, month, or year, with every finding linked to the days behind it • Move naturally between Day, Month, Timeline, and Year • Use Item Lens to see a full year of any item alongside Line, Bar, and Calendar views • Enjoy refined native navigation across iPhone, iPad, and Mac • Meet a new app icon and visual identity built around the shape of your days • Improved reliability for Apple Health, widgets, Apple Watch, and purchases

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.

1. First observed Aug 10, 2026 · 6:10 AM Free