CalcGate | App Lock with Math
Digital App Locker
Free · Designed for iPad. Not verified for macOS.
Lock distracting apps and unlock them by solving math challenges.
Now available in multiple languages.
CalcGate is a screen time control app designed for people who want to break the habit of opening distracting apps without thinking.
Have you ever opened social media “just for a minute,” only to lose track of time?
Do you find yourself checking your phone when you should be studying, working, or focusing?
Do app limits feel too easy to ignore or turn off?
CalcGate adds a simple but effective moment of friction before you can reopen restricted apps.
Choose the apps or app categories you want to limit, start a lock, and CalcGate will require you to solve math challenges before access can be restored early. Unlike blockers that can be dismissed instantly, CalcGate is designed to make you pause and ask yourself: “Do I really want to open this app right now?”
To unlock early, every math problem must be answered correctly. If you make a mistake, your progress resets and the challenge starts again from the beginning. This small hurdle helps interrupt automatic habits like repeatedly opening social media, video apps, games, or other distractions without thinking.
CalcGate is useful for study sessions, deep work, productivity, reading, reducing late-night scrolling, managing screen time, and building healthier digital routines.
Key features:
・Restrict selected apps or app categories
・Start instant locks anytime
・Create recurring daily lock schedules
・Unlock early by solving math challenges
・Customize challenge difficulty and question count
・Reset progress after incorrect answers
CalcGate is not about completely avoiding your phone.
It is about using your phone more intentionally.
Whether you want to improve focus, study without distractions, reduce social media overuse, build better habits, or create a healthier relationship with your device, CalcGate helps you pause before you tap.
Start using CalcGate today and build the habit of thinking before unlocking.
Ratings & Reviews
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Introducing a new onboarding experience and multilingual support for a smoother start.
The developer, HIDEYUKI INAGAKI, 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
- HIDEYUKI INAGAKI
- Size
- 4.1 MB
- Category
- Productivity
- 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
French and 7 more
- French, German, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Traditional Chinese
- Age Rating
4+
- 4+
- Copyright
- © 2026 HIDEYUKI INAGAKI. All rights reserved.