CalcGate | App Lock with Math
HIDEYUKI INAGAKI Productivity iPhoneiPadiPod touch
CalcGate | App Lock with Math is a free Productivity app for iPhone and iPad by HIDEYUKI INAGAKI. Requires iOS 26.2. Updated June 2, 2026.
- Price
- Free
- on the App Store
- Size
- 4 MB
- Age 4+
- Updated
- Jun 2
- 2026 · v1.0.1
Screenshots
About CalcGate | App Lock with Math
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.
What’s new
Version 1.0.1 · Updated June 2, 2026
Introducing a new onboarding experience and multilingual support for a smoother start.
App privacy
The developer, HIDEYUKI INAGAKI, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to CalcGate | App Lock with Math
Looking for apps like CalcGate | App Lock with Math? Here are 6 similar apps on the App Store. The highest rated is SO Stats (5.0/5), and 5 of the 6 are free to download.
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NumLock: Math Screen Lock
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LockBuddy: Screen Time Lock
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SO Stats
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| CalcGate | App Lock with Math | – | Free | June 2, 2026 | |
| NumLock: Math Screen Lock | – | Free | Apr 14, 2026 | Compare |
| Times Up: Screen Time Blocker | 3.5 / 5 (2) | Free | Sep 7, 2026 | Compare |
| MathGate: App Blocker | – | Free | Oct 18, 2026 | Compare |
| BrainPass: Think to Unlock | – | Free | May 23, 2026 | Compare |
| LockBuddy: Screen Time Lock | 2.0 / 5 (1) | Free | Jun 27, 2026 | Compare |
| SO Stats | 5.0 / 5 (1) | 4.99 USD | Mar 31, 2026 | Compare |