# Sum of Days: Life Tracker — Habits, Health & Daily Review > Personal number and habit tracker with data visualization and Apple Health sync. (iPhone/iPad app by haha Interactive.) - Source: https://appshunter.io/ios/app/sum-of-days-life-tracker/id1595510904 (this page in markdown: same URL + `.md`) - Developer: [haha Interactive](https://appshunter.io/developer/369684594) - Category: Health & Fitness - Price: Free with in-app purchases - Rating: 4.70/5 from 15 App Store ratings · 23 written reviews indexed - Age rating: 4+ - Requires: iOS 17.0 · 29 MB - Languages: American English, European Spanish, Italian, Korean, German (Germany), Brazilian Portuguese, Chinese (Simplified, China), French (France), Japanese - Released: 2021-12-21 - Data updated: 2026-08-26 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/sum-of-days-life-tracker/id1595510904/reviews.md ## What is Sum of Days? 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. Monthly Rewind turns up to three verified findings into a one-page visual summary of your last 30 days. 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 from the app, widgets, Shortcuts, and Spotlight. On iPhone, also use Control Center, the Lock Screen, or the Action button • 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, Monthly Rewind, and Year insights are generated on device. Entry notes and days based only on Apple Health imports stay out of Spotlight unless you opt in. 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/ ## Key features - Number tracking (weight, steps, calories) - Custom habit tracking with notifications - Data visualization with charts and calendar - Apple Health and iCloud sync - Add notes to entries - Biometric data protection (Face ID/Touch ID) ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Sum of Days+ Monthly. | $3.99 | per month | | Sum of Days+ Annual | $24.99 | per year | | Sum of Days + 6 Month Subscription | $17.99 | per 6 months | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Sum of Days+ Lifetime | $59.99 | one-time | ## Recent user reviews (10 of 23) All indexed reviews: https://appshunter.io/ios/app/sum-of-days-life-tracker/id1595510904/reviews.md ### 5/5 — excellent *2026-07-16* simple and intuitive design. syncs well between devices. let's you export your data. reporting is good. it has become a productivity app i use everyday. ### 5/5 — Best App to track custom data *2026-02-20, version 1.9.0* I wonder why this app has so few ratings. The freedom to configure every data input type is exactly what I was looking for. Great visualizations also. ### 5/5 — Does three things better *2025-06-25* There’s a pantload of habit trackers out there. Most of them are pretty mediocre, a few are surprisingly good. JT is lacking in some of the bells and whistles but it does at least three things better than most of the others I’ve tried, and those three things are important to me. First, native iPad support. No wasted real estate. Second, solid sync. Ever have to wait hours for the iPhone to sync with the watch? Yeah, me neither. Third: BIG clear watch display. I need to track the time I take certain meds. Waking up in the wee hours to do so is no fun, and having to fiddle with a phone or iPad makes it worse. JT is the ONLY one I found with a simple, clear display - tap, tap and back to sleep. Free? No, it’s not free. You don’t work for free, why do you expect devs to do it? OTOH, $10/year is much less than many of the competition so what are you waiting for? Give it a try. 3 habits for free. ### 1/5 — Not a free app *2025-05-12* And you won’t figure that out until you’ve invested set up time. This app is entirely useless as a free app. It has a good concept and I was getting excited to try it out but then I discovered it only lets you track 3 data points without upgrading to “pro”. Don’t waste your time unless you’re willing to pony up right out of the gate. ### 5/5 — Excellent data logger *2025-01-31* One of the best! ### 5/5 — Excellent Tracking App! *2025-01-21* JustTrack is a fantastic app for keeping track of everything you need. The user interface is clean and intuitive, making it easy to manage tasks and goals. I love how customizable it is—you can tailor it to fit your specific needs. It’s reliable, syncs seamlessly, and helps me stay organized. Highly recommend it to anyone looking for an all-in-one tracking solution! ### 1/5 — Seit einer Woche kann ich das Tool auf meinem iPhone 14 nicht mehr öffnen. *2025-01-16, version 1.9.0* Ich bin selbst Senior Softwarearchitekt in einem der größten Konzerne der Welt und kann dir nur eines ans Herz legen: Wenn du Geld für ein Tool verlangst, musst du dafür sorgen, dass es funktioniert. So einfach ist das. Ich habe 20 Jahre lang selbst programmiert, bevor ich ein paar Vogelperspektivetagen höher gestiegen bin, und ich weiß, wie nervig Bugfixing sein kann. Aber heutzutage, mit KI, GitHub Copilot, Devim (und wie all diese Agentensysteme heißen) sowie vernünftiger Testabdeckung und modernen Deployment-Techniken (CI/CD), ist das kein unlösbares Problem. Es gibt Unternehmen, die schaffen es, ihre gesamte Website – mit mehr Code als Windows – in 13 Sekunden zu deployen. Dann solltest du es doch hinbekommen, einen Kompatibilitätsfehler zu beheben, der vermutlich durch ein iOS-Update verursacht wurde (in meinem Fall iOS 18.1.1). Wenn das nicht möglich ist, stell deine Software unter eine Open-Source-Lizenz. Aber Geld kassieren und dann auf der faulen Haut liegen? Das akzeptiert heute kein User mehr. ### 1/5 — Datenkrake *2024-11-29, version 1.9.0* JustTrack hat sich bei ersten Öffnen gleich ungefragt und heimlich mit insgesamt sieben IP-Adressen verbunden! Unter Anderem mit: – revenuecat.com – googleapis.com – app-analytics-services.com – crashlytics.com. Dabei hat JustTrack viele (auch personenbezogene) Daten an diese Drittunternehmen hochgeladen. Was glauben diese Entwickler eigentlich wer sie sind? Die NSA? Gleich wieder gelöscht. ### 2/5 — Too many bugs *2024-10-16, version 1.8.0* It’s a good idea but it’s not well executed. Apple Health sync doesn’t work most of the time. It struggles to get all data in and takes multiple attempts. Deleting out a value doesn’t get reflected in the app either and you can’t delete it from the app and then in Apple Health as a workaround so data is stuck. ### 5/5 — Fantastic app *2024-07-10* I love to be able to see my data in charts. Only wish there was an option to save an entry as a favorite, and be able to add that favorite for the next entry. That way you don't have to manual type again that same item each and every time. But love the app. Keep up the great work!!! I already bought the one time lifetime edition, so glad it's not a yearly subscription. That's what makes this app shine as well!!! God Bless You!!! ## Frequently asked questions about Sum of Days ### What kind of numbers can I track with JustTrack? You can track various numbers like weight, push-up counts, and squat counts. It also allows combining these with health-related information such as steps and calories burned to provide deeper insights. ### How does JustTrack help with habit formation? JustTrack allows you to create custom habits, set their frequency, and track your progress with ease. It provides notifications to help you stay on track and a calendar view to visualize your consistency. ### Does JustTrack sync with other health apps? Yes, JustTrack syncs with Apple Health and iCloud, fetching your existing data to provide a comprehensive view of your progress across devices. ### What are the subscription options for JustTrack+? JustTrack+ offers monthly and annual subscription plans. The annual plan is priced at $9.99 and includes a 7-day free trial. ### How can I manage my JustTrack+ subscription? You can manage your subscriptions and turn off auto-renewal by going to your Account Settings on the App Store after purchase. Payments are charged to your iTunes account at confirmation. ### Is my data secure with JustTrack? Yes, JustTrack offers data protection with Face ID/Touch ID for its premium users (JustTrack+). This ensures your personal tracking data remains private. ### How often is JustTrack updated? The latest version of JustTrack is 1.9.0, and it was last updated on November 5, 2024. Updates typically include new features and performance improvements. ### What devices are compatible with JustTrack? JustTrack is compatible with a wide range of Apple devices, including Mac, Apple Watch, iPhone, iPad, and iPod. ## Version history (last 5 releases) ### 2.5.0 — 2026-08-25 See your last 30 days more clearly with Monthly Rewind. Monthly Rewind gathers up to three of your strongest verified Review findings into one private visual summary. Read the key change first, then see the comparison behind it. Everything is built on device, and the full Review remains available for evidence and details. Also new: • Add entries, open an item or day, and check Today Status with new Shortcuts actions • On iPhone, use Quick Entry, Open Item, and Open App controls from Control Center, the Lock Screen, and the Action button • Find items and days with Spotlight, with privacy controls for optional note indexing • Faster Timeline loading and more adaptive iPad and Mac navigation • Improved accessibility, localization, widget reliability, and Apple Watch support ### 2.4.2 — 2026-08-18 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 ### 2.4.1 — 2026-08-11 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 ### 2.4.0 — 2026-08-05 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 ### 2.3.1 — 2026-07-20 - Item Widget shows status and chart according to the item inside the app (Calendar added) (v2.3) - Improved stability for the widget, watch app and HealthKit connection ## Apps similar to Sum of Days | App | Rating | Price | Category | | --- | --- | --- | --- | | [Easy Fast - Fasting Tracker](https://appshunter.io/ios/app/easy-fast-fasting-tracker/id1645249078) | 4.5 (214) | Free | Health & Fitness | | [21 Day Container Tracker](https://appshunter.io/ios/app/21-day-container-tracker/id994287813) | 4.7 (510) | Free | Health & Fitness | | [Push Up Time – AI App Blocker](https://appshunter.io/ios/app/push-up-time-ai-app-blocker/id6751124797) | 4.7 (760) | Free | Health & Fitness | | [Body Measurements Diary](https://appshunter.io/ios/app/body-measurements-diary/id1621503510) | 5.0 (1) | Free | Health & Fitness | | [Bad Habit Tracker](https://appshunter.io/ios/app/bad-habit-tracker/id1541218699) | 4.6 (349) | Free | Health & Fitness | | [Simply You Health Hub](https://appshunter.io/ios/app/simply-you-health-hub/id6475775082) | — | Free | Health & Fitness | ## More apps by haha Interactive - [My Wonderful Days Journal](https://appshunter.io/ios/app/my-wonderful-days-journal/id434356065) - [GoodTask - To Do List, Tasks](https://appshunter.io/ios/app/goodtask-to-do-list-tasks/id1068039220) - [Hi Sticky: Sticky Notes](https://appshunter.io/ios/app/hi-sticky-sticky-notes/id1610634186) All apps by haha Interactive: https://appshunter.io/developer/369684594 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*