# iStrobe - Flash & Strobe Light for iPhone 4 > iPhone 4 utility for adjustable flashlight and true rapid pulse strobe light effects. (iPhone/iPad app by Nicholas Vellios.) - Source: https://appshunter.io/ios/app/istrobe-flash-and-strobe-light-for-iphone-4/id382189096 (this page in markdown: same URL + `.md`) - Developer: [Nicholas Vellios](https://appshunter.io/developer/372717821) - Category: Utilities - Price: Free - Rating: 4.01/5 from 72 App Store ratings · 58 written reviews indexed - Age rating: 4+ - Requires: iOS 4.0 · 3 MB - Languages: English - Released: 2010-07-22 - Data updated: 2026-08-22 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/istrobe-flash-and-strobe-light-for-iphone-4/id382189096/reviews.md ## What is iStrobe? #1 iPhone Utility in the App Store Sep 7, 2010 iStrobe is the first and best strobe light app on the App Store using the iPhone 4 camera flash. Fully adjustable strobe speed and flashlight mode. Extremely bright, iStrobe is a must have for any iPhone 4 user. Simple in design, useful on so many levels. Defaults to a high intensity flashlight mode, but just drag the slider to the left to kick on the intense strobe light effects! *** The reason why this strobe light is far superior to the others out there is that it implements a true rapid pulse strobe. If you have ever seen a real strobe light, you know it doesn’t just turn on and off at even intervals. It gives a micro-pulse of light followed by a brief delay. That micro-pulse and then delay is what you need to acquire a true trippy strobelight effect. *** iStrobe as well as all our other apps are open source. Check out our website for more information and get started making your own iPhone apps today! Continued use of the flash may dramatically decrease battery life. ## Key features - Adjustable strobe speed - High intensity flashlight mode - True rapid pulse strobe effect - Simple, intuitive design - Open source code available ## Recent user reviews (10 of 58) All indexed reviews: https://appshunter.io/ios/app/istrobe-flash-and-strobe-light-for-iphone-4/id382189096/reviews.md ### 1/5 — No work *2017-11-20, version 1.21* Ios11 no work ### 5/5 — Please update app *2017-11-08, version 1.21* for us with newest iphone versions its impossible to use this app if you dont update it to IOS 11 ### 5/5 — Hi *2017-10-08, version 1.21* Need update for IOS 11.2 for flash /strobe light ### 5/5 — Update? *2017-09-21, version 1.21* Any chance this can be updated for iOS 11? No other strobe apps I've seen do the same effect. ### 5/5 — Very Fast *2017-07-20, version 1.21* Fastest strobe I've ever sent for IPhone, Caution when using since I got a extremely painful headache for 20 seconds of using it at the max ### 1/5 — Boring and simple *2017-05-27, version 1.21* All this app is about is flashing multiple speeds of the same color add different colors and rhythms and patterns please ### 4/5 — It works! *2017-05-18, version 1.21* It works and works great, just what I needed. I would have given five stars if, like some others said, it would continue while having your phone screen off. But still a great app and for sure worth getting! ### 5/5 — Super fun! *2017-04-09, version 1.21* Nice app! Please update it to work with future IOS updates! ### 1/5 — Needs Updates *2017-03-20, version 1.21* "PLEASE!" update more often. ### 5/5 — Asswipe *2017-01-15, version 1.21* It's was a great app excepted for the fact that I I have epilepsy so I died 3 days ago and now I have to go to the bathroom but I can't Bc of I'm a ghost so yea please don't get If you have dyslexia 4,000,000/10 ## Frequently asked questions about iStrobe ### What devices is iStrobe compatible with? iStrobe is specifically designed for the iPhone 4. Its functionality relies on the camera flash hardware present in that model. ### How does iStrobe's strobe effect differ from others? iStrobe implements a true rapid pulse strobe, mimicking the micro-pulse and brief delay of real strobe lights for a more authentic effect, unlike apps with simple on/off intervals. ### Is iStrobe free to download and use? Yes, iStrobe is available for free. The app was released on July 22, 2010, and has maintained its free status. ### What is the battery impact of using iStrobe? The description notes that continued use of the flash, especially in strobe mode, may dramatically decrease battery life. Users should be mindful of this when using the app. ### Can I adjust the strobe speed on iStrobe? Yes, the strobe speed is fully adjustable. You can control the intensity and frequency of the strobe effects by dragging a slider. ### Is iStrobe suitable for all ages? iStrobe has an age rating of 4+, indicating it is generally suitable for younger users. However, the intense light effects might require adult supervision for very young children. ### How often is iStrobe updated? The latest version, 1.21, was released on April 18, 2011. While it has not been updated recently, its core functionality as a utility app remains stable. ### Can I create my own apps with iStrobe's code? Yes, iStrobe and all other apps from this developer are open source. You can find more information on their website to get started making your own iPhone apps. ## Version history (last 1 release) ### 1.21 — 2011-04-18 iOS 4.3.x Support ## More apps by Nicholas Vellios - [SpaceBubble](https://appshunter.io/ios/app/spacebubble/id372717818) - [LED Flashlight ®](https://appshunter.io/ios/app/led-flashlight/id397003203) All apps by Nicholas Vellios: https://appshunter.io/developer/372717821 ## Related topics [ligth strob](https://appshunter.io/ios/topics/ligth-strob) · [flashes](https://appshunter.io/ios/topics/flashes) · [strobe flash](https://appshunter.io/ios/topics/strobe-flash) --- *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 2026-08-22.*