Checkstack: Habit Tracker
Daily Streaks & Perfect Days
Free · Designed for iPad. Not verified for macOS.
Meet Checkstack: a fresh new look, perfect days, Trends, awards, and habits you can tick off right from your widget or reminder.
Check off your habits, build streaks, and see every perfect day add up.
Checkstack is a calm, simple habit tracker that feels at home on your iPhone. Tap once to complete a habit, watch today's progress bar fill, and keep your streaks going — without accounts, ads, or clutter.
TODAY AT A GLANCE
• See "3 of 5 done" and a progress bar that fills in each habit's colour
• Habits grouped into Morning, Afternoon, Evening and Anytime
• Swipe to complete or archive, long-press to reorder
• Daily, weekday, weekend or custom schedules
• Count habits like "8 glasses of water" with a goal per day
PROGRESS THAT MOTIVATES
• Perfect days — every habit done — with your current and best run
• Trends for the week, month, six months and year
• Clear comparisons with the previous period, in plain language
• Current and best streak, completion rate and full calendar history
• Collect awards at 7, 30, 50, 100 and 365-day streaks
EVERYWHERE YOU ARE
• Interactive home screen widgets — tick habits off without opening the app
• Lock screen widgets
• Reminders with a "Mark as Done" button right in the notification
• Siri and Shortcuts: "Log Read in Checkstack"
• Spotlight search
• iCloud sync across your iPhone and iPad
MADE YOUR WAY
• Pick an icon and colour for every habit, with icons suggested from the name
• Light, dark or system appearance, and your choice of week start
• Haptics you can turn off
PRIVATE BY DESIGN
Your habits live on your devices and in your own iCloud account. No accounts, no ads, no analytics, no tracking.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
This update makes Checkstack faster and more reliable:
• Smoother scrolling on Today and in the habit calendar
• Award sheets open and spin more smoothly
• Reminders are scheduled more reliably
• Behind-the-scenes improvements that keep the app and widget in sync
The developer, OcuNecu, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ocu Necu
- Size
- 3.3 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.2 or later.
- iPhone
Requires iOS 26.2 or later. - iPad
Requires iPadOS 26.2 or later. - Mac
Requires macOS 26.2 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.2 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 OcuNecu Pty Ltd