SafeYourEye: Eye Strain Timer
20-20-20 Break & Vision Test
Only for Mac
Free · In‑App Purchases
Mac
Eyes tired after hours at the Mac? SafeYourEye times 20-20-20 breaks, checks screen distance and blink rate, and lets you self-check acuity, contrast and Amsler grid.
SafeYourEye helps you protect your vision during long hours at the Mac by following the 20-20-20 rule: every 20 minutes, look at something 20 feet (6 m) away for 20 seconds.
SafeYourEye is free to use. Break reminders, and a short preview of ambient-light and distance monitoring, are available to everyone. An optional SafeYourEye Pro subscription removes the daily break-reminder limit and unlocks continuous light and distance monitoring, blink-rate measurement, and the vision self-checks, with a free trial available.
FEATURES
• Break timer — counts your work session and reminds you when it is time to rest your eyes. Session length is adjustable from 5 to 60 minutes.
• Full-screen break — a dimmed screen with a 20-second countdown, so it is easy to actually look away. Every third break is a longer one.
• Ambient light monitoring — reads the Mac light sensor and tells you when it is too dark or too bright for comfortable work.
• Distance tracking — the front camera estimates how far your face is from the screen and warns you when you lean in too close.
• Blink rate measurement — a five-minute camera session counts how often you blink, with history and a trend by time of day.
• Daily statistics — sessions completed, breaks taken and skipped, work time for today and for the past week.
• Idle detection — step away from the Mac and the timer stops by itself; locking the screen resets the session.
• Always-tick mode — keep the timer running even while you are idle.
• Launch at Login — SafeYourEye is ready as soon as you sign in.
• Six languages — English, Russian, German, Chinese, French and Italian.
VISION SELF-CHECKS
• Visual acuity — symbols are shown at an exact angular size, computed from the distance the camera measures to your eyes and the physical pixel size of your display. Answer with the mouse: left button yes, right button no, or point at the gap in a Landolt ring.
• Contrast sensitivity — the symbol keeps its size and slowly fades. This one is not limited by display resolution, so it works on any screen and suits frequent measurements.
• Astigmatism fan and Amsler grid — two quick looks with no staircases and no scoring. You simply say whether anything looks uneven or distorted, and the app remembers where.
• Express check — ninety seconds, both eyes together. Good for comparing morning with evening.
• Change over time — measurements are compared only when the conditions match: the same display, the same glasses, the same protocol. A measurement that runs into the limit of your screen is marked as a lower bound instead of being mixed in with the rest. A PDF summary can be saved to take to your eye doctor.
PRIVACY
SafeYourEye collects no personal data. The camera is used only to estimate face-to-screen distance, to count blinks and to keep you at the right distance during a vision check; frames are processed on device in real time and are never saved or sent anywhere. Statistics, blink history and vision check history stay on your Mac. Camera access is optional — everything else keeps working without it. The app makes a single network request: it reads the minimum supported version, so that an outdated copy can be told to update. It carries none of your data.
The 20-20-20 rule is a widely recommended habit for reducing digital eye strain. SafeYourEye is a habit-building app, not a medical device, and does not replace advice from an eye-care professional. The vision checks are a self-check for tracking change over time. They are measured at screen distance rather than the five metres used in a clinic, so their numbers cannot be compared directly with a clinical result, and no result is a diagnosis.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://klukyanov.ru/projects/safeyoureye/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Achievements: levels, streaks and badges for the breaks you take. Bug fixes and improvements.
The developer, Kirill Lukyanov, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Kirill Lukyanov
- Size
- 3.5 MB
- Category
- Health & Fitness
- Compatibility
Requires macOS 13.0 or later.
- Mac
Requires macOS 13.0 or later.
- Mac
- Languages
English and 5 more
- English, French, German, Italian, Russian, Simplified Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Pro Yearly $19.99
- Pro Monthly $2.99
- Copyright
- © 2026 Kirill Lukyanov