
Stackd: Study Timer & Tracker
Pomodoro, calendar, graphs
About
Track and manage your study sessions with a versatile timer and detailed logging. Visualize your progress with weekly graphs and calendar streaks to stay motivated and organized. Focus on learning without distractions.
What's New in Stackd
1.4
October 5, 2026
【New】 Pro users can now see their active timer in real time on the Lock Screen. ・Stopwatch and countdown: Shows the subject name and elapsed/remaining time ・Pomodoro: Shows the total session time ・When you pause the timer in the app, the Lock Screen display pauses as well ※Due to an iOS limitation, the Lock Screen cannot display transitions between work and break periods in real time for Pomodoro, so it shows the total session time. Work/break transitions and the end of the session are announced by notifications. To see detailed progress, please open the app. 【Change】 Study records are now assigned to the start date instead of the end date. For example, if you start studying at 11:00 PM on Oct 3 and finish at 1:00 AM on Oct 4, the record will be assigned to Oct 3. ・Records that span midnight will not appear in the “Today” list on the Record tab. You can find them in the History tab under their start date. ・The “Date” field on the record screen is now labeled “Start Date & Time.” ・Existing timer records were saved with a date and time close to when the timer ended. If you want to correct the date of a record that spans midnight, open the record and edit its start date and time.
MoreSubscriptions & In-App Purchases
$1.99
Stackd Pro
One-time purchase. Unlock all features permanently.
Developer apps
FAQ
What is Stackd's learning methodology?
Stackd supports various learning methods through its timer modes, including Pomodoro, stopwatch, and countdown. It allows detailed logging of study materials and notes to aid comprehension and retention.
How does Stackd track progress?
Stackd visualizes progress through weekly graphs showing subject balance and a calendar that color-codes study days. It also displays consecutive study days (streaks) to encourage consistent effort.
Is Stackd free to use?
The core features of Stackd are free to use. Additional features like monthly graphs, goal setting, and widgets are available through a one-time purchase of Stackd Pro.
Does Stackd have ads?
No, Stackd is ad-free. The description explicitly states 'No ads, no social media features, and no account registration required' to ensure a focused learning experience.
What devices does Stackd support?
Currently, Stackd is supported on iPhones. Future platform compatibility may be expanded based on user demand and development.
How often is Stackd updated?
The latest version of Stackd was released on October 5, 2026. While specific update frequency isn't detailed, the recent update suggests ongoing development and support.
Is Stackd suitable for all ages?
Stackd has an age rating of 4+, making it suitable for a wide range of users, from young students to adults pursuing certifications or language studies.
Can I export my study data from Stackd?
Yes, Stackd includes backup and data export functions, allowing you to save and manage your study logs externally. This ensures your data is secure and accessible.





