# Eye Sight Guardian — Automatic 20-20-20 Rule Timer > Automatic 20-20-20 rule timer for digital eye strain prevention. (iPhone/iPad app by Hongyan Chen.) - Source: https://appshunter.io/ios/app/eye-sight-guardian/id6504419390 (this page in markdown: same URL + `.md`) - Developer: [Hongyan Chen](https://appshunter.io/developer/1752185473) - Category: Health & Fitness, Productivity - Price: Free - Rating: 4.50/5 from 2 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 13.4 · 20 MB - Languages: English - Released: 2024-06-16 - Data updated: 2026-06-01 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/eye-sight-guardian/id6504419390/reviews.md ## What is Eye Sight Guardian? IMPORTANT NOTE: If you want to stop the timer but you’ve already closed the app, simply reopen the app and the timer will stop! Have you ever gotten a headache or eye pain from using your phone or computer too much? These negative side effects are the result of computer vision syndrome, which can be cured and avoided by taking periodic breaks to rest your eyes. Taking these breaks will help you maintain your eye health and your healthiness as a whole. One method recommended by physicians, known as the "20-20-20 Rule," states that every 20 minutes, you should look at something at least 20 feet away for 20 seconds. This rule is effective at preventing eye overuse problems, but it's difficult for many (including the creators of this app) to follow it, because you have to set a new timer every 20 minutes, which means you have to actively, throughout your day, be remembering to restart the timer. Time flies, and it's common that you only realize that you forgot to reset the timer when the day's already over. With Eye Sight Guardian, get automatically reminded every 20 minutes to look at something 20 feet away for 20 seconds. Just click the "start" button, and continue with your work! When you're done for the day, just open the app and click "stop" to stop the timer. This app is useful for many different kinds of people. If you spend a considerable amount of time (>2 hours) interacting with digital devices daily, then you may be at greater risk of developing various eye disorders, such as blurred vision, dry eye, or double vision. By taking periodic eye breaks using our app, you can protect yourself from these negative effects. FREQUENTLY ASKED QUESTIONS: 1. Do I need to turn on notifications? Answer: Yes, notifications must be enabled to ensure functionality. The only notifications the app sends are to remind you to take an eye break; no promotional notifications are sent. 2. Do I need to keep my device on for the timer to work? Answer: The timer works in the background, so you don't have to keep your device open to receive the notifications. However, sometimes, if the app is closed, the alarm may not sound. For best results, leave the app open in the background. 3. Does this app cost money? Answer: No, this app is completely free, with no in-app purchases or ads. Our main objective for this app is to prevent the various problems caused by overuse of digital devices; as such, we have made the app free with no disruptive ads. If you wish to support us, please consider sharing this app on your social media platforms and to your family and friends. 4. Is this app appropriate for kids? Answer: Yes, this app is appropriate for kids. There's no violence or profanity: all you can do is to either read the instructions or click the "start" and "stop" buttons for the timer. 5. Do physicians actually recommend the "20-20-20" rule? Answer: Yes, both the American Optometric Association (AOA) and the American Academy of Opthalmology (AAO) recommend it as a way to reduce eye strain. 6. What devices does this app support? Answer: This app can be run on iPhones and iPads. ## Key features - Automatic 20-20-20 rule reminders - Background timer functionality - Simple start/stop interface - Prevents computer vision syndrome - Customizable break intervals ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/eye-sight-guardian/id6504419390/reviews.md ### 1/5 — Buggy *2026-01-09* After installing the app to try out the “How to use?” on the main screen only shows some text. I can’t scroll to read the remaining text. Deleted. ### 4/5 — Suggestion *2025-01-21* I really like this app—it’s exactly what I was looking for! I do have a suggestion to improve usability. It would be great if you could add a vibration or sound notification after 20 seconds to indicate when to stop looking away. ### 5/5 — My eyes don’t hurt anymore *2024-06-29* Years of eye pain this has fixed for me; very grateful that this app is free! ## Frequently asked questions about Eye Sight Guardian ### Does Eye Sight Guardian need notifications to be enabled? Yes, notifications must be enabled for the app to function correctly. The app only sends notifications to remind you to take an eye break and does not send any promotional messages. ### Does Eye Sight Guardian work if the app is closed? The timer works in the background, so you don't need to keep the app open. However, for the best results and to ensure the alarm sounds, it's recommended to leave the app running in the background. ### Is Eye Sight Guardian free to use? Yes, Eye Sight Guardian is completely free to use. It does not have any in-app purchases or advertisements, as its primary goal is to help users prevent problems caused by digital device overuse. ### Is Eye Sight Guardian appropriate for children? Yes, the app is appropriate for children. It contains no violence or profanity, and its functionality is limited to reading instructions or starting and stopping the timer. ### Is the "20-20-20" rule medically recommended? Yes, the "20-20-20" rule is recommended by physicians. Both the American Optometric Association (AOA) and the American Academy of Ophthalmology (AAO) endorse this rule as an effective method for preventing eye overuse problems. ### What devices does Eye Sight Guardian support? Eye Sight Guardian is available for iPhone and iPad devices. It is designed to help users on Apple's mobile platforms maintain their eye health. ### How often is Eye Sight Guardian updated? The app was last updated on August 7, 2024, with version 1.0.2. This indicates regular maintenance and potential improvements to ensure its functionality and reliability. ### What is the user rating for Eye Sight Guardian? Eye Sight Guardian has a high user rating of 4.5 stars, based on 2 ratings. This suggests a positive reception from its user base. ## Version history (last 3 releases) ### 1.0.2 — 2024-08-07 Fixed bug where notifications from previous app session were unable to be canceled. ### 1.0.1 — 2024-06-24 Fixed notifications. ### 1.0 — 2024-06-16 No release notes. ## Apps similar to Eye Sight Guardian | App | Rating | Price | Category | | --- | --- | --- | --- | | [20s Vision Break](https://appshunter.io/ios/app/20s-vision-break/id6741156325) | — | Free | Health & Fitness | | [Digital Eye Care](https://appshunter.io/ios/app/digital-eye-care/id6466563606) | 3.0 (2) | Free | Health & Fitness | | [Eye Care 20 20 20](https://appshunter.io/ios/app/eye-care-20-20-20/id967901219) | 4.3 (374) | Free | Health & Fitness | | [Eye Break Timer](https://appshunter.io/ios/app/eye-break-timer/id6746451163) | — | Free | Health & Fitness | | [Eye Care: Relax tired eyes](https://appshunter.io/ios/app/eye-care-relax-tired-eyes/id1669473104) | — | Free | Health & Fitness | | [Eye Break Timer: GlanceAway](https://appshunter.io/ios/app/eye-break-timer-glanceaway/id6751297230) | — | Free | Health & Fitness | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*