# Defiant App Timer > Program and control Defiant timers via headphone jack data transmission. (iPhone/iPad app by Red Shield Security Limited.) - Source: https://appshunter.io/ios/app/defiant-app-timer/id1037844169 (this page in markdown: same URL + `.md`) - Developer: [Red Shield Security Limited](https://appshunter.io/developer/565853009) - Category: Utilities, Productivity - Price: Free - Rating: 1.90/5 from 50 App Store ratings · 44 written reviews indexed - Age rating: 4+ - Requires: iOS 8.0 · 11 MB - Languages: English - Released: 2015-09-18 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/defiant-app-timer/id1037844169/reviews.md ## What is Defiant App Timer? Use App to program and control your Defiant timer. Data sent through 3.5 mm headphone jack cord (included with timer purchase) ## Key features - Program timer settings - Control timer functions - Data transmission via headphone jack - Includes 3.5 mm headphone jack cord ## Recent user reviews (10 of 44) All indexed reviews: https://appshunter.io/ios/app/defiant-app-timer/id1037844169/reviews.md ### 3/5 — App needs updating *2023-01-18, version 1.6* Please update the app so it works with the new update on the Apple platform. Thanks ### 1/5 — Timer stopped working *2023-01-02, version 1.6* This app needs update. It is so outdated. It crashes trying to set a program. ### 1/5 — Poor app *2022-12-27, version 1.6* App fails and closes when trying to set the dawn to dusk and clear features. Tried downloading the latest version and get the same results. Using an iPhone 11. Please fix your app so I don’t have to swap out the switches for another product. Thank you. ### 1/5 — App with iPhone 13 *2022-12-17, version 1.6* Why can’t they fix the app so it works with new iPhones. It appears they want you to buy a new one. I will, but a different brand. ### 1/5 — No longer supported *2022-10-17, version 1.6* This used to work on my iPhone 10, but with all of the iOS updates, it no longer communicates to the timer. Last update from the developers was 4 years ago. Clearly they’re no longer supporting this app. Time to buy a new timer. ### 3/5 — Doesn’t work with iPhone 13 … now works *2022-08-27, version 1.6* Update: I purchased a genuine apple adapter from the apple store website and was able to connect to the timer. Have lightning to headphone adapter but the app doesn’t recognize the defiant switch. If you just bought the switch, take it back ### 5/5 — Timer *2022-05-31, version 1.6* Great app been using for years. I did buy a separate adapter to connect Jack for new iPhones. Works great. ### 1/5 — Total Garbage *2021-12-04, version 1.6* Don’t buy anything Defiant brand -it’s all garbage and nothing works.I think their app interface was designed by a 2nd grader.It’s never worked total waste of money and this app needs to be removed from the App Store. ### 2/5 — Does not work with newer phones without headset Jack *2021-11-29, version 1.6* This timer has worked great but the app does not work with newer phones that do not have a headset jack. I have been searching for an updated app that will buy have had no luck. I had to keep my old IPhone in order the be able to control the timer. That’s not good. ### 1/5 — It doesn’t work with ios 14.3. *2020-12-28, version 1.6* Doesn’t work with iOS 14.3. I wouldn’t recommend buying this switch if the manufacture doesn’t pay to keep the Sa updated so the app works properly. ## Frequently asked questions about Defiant App Timer ### What does the Defiant App Timer do? This application allows you to program and control your Defiant timer. It facilitates the setup and management of your timer's functions. ### How does the app connect to the timer? The app transmits data to the timer through a 3.5 mm headphone jack cord. This cord is included with the purchase of the Defiant timer. ### Is this app free to use? Yes, the application is free to download and use. There are no in-app purchases or advertisements mentioned. ### What is the primary use case for this app? The primary use case is for users who need to set specific programs or control the operations of their Defiant timer device. ## Version history (last 1 release) ### 1.6 — 2018-05-16 This app has been updated by Apple to display the Apple Watch app icon. -Fix some bugs ## Apps similar to Defiant App Timer | App | Rating | Price | Category | | --- | --- | --- | --- | | [GrusHome](https://appshunter.io/ios/app/grushome/id1455196140) | 5.0 (1) | Free | Utilities | | [小城经纪人](https://appshunter.io/ios/app/id1459829320) | — | Free | Utilities | | [Calendar Clock](https://appshunter.io/ios/app/calendar-clock/id1451445740) | — | $0.99 | Utilities | | [创衣盒子dBOX](https://appshunter.io/ios/app/dbox/id1462858880) | — | Free | Utilities | | [Pusher for Firebase](https://appshunter.io/ios/app/pusher-for-firebase/id1450720020) | 5.0 (1) | $0.99 | Utilities | | [龙嘉SCM供应商](https://appshunter.io/ios/app/scm/id1459545200) | — | Free | Utilities | ## More apps by Red Shield Security Limited - [RedShield](https://appshunter.io/ios/app/redshield/id565852786) - [BOLTEK](https://appshunter.io/ios/app/boltek/id824031501) - [Smart Halo](https://appshunter.io/ios/app/smart-halo/id895725457) - [GSM Security](https://appshunter.io/ios/app/gsm-security/id1147982787) - [ZUMI–X](https://appshunter.io/ios/app/zumix/id1173380543) All apps by Red Shield Security Limited: https://appshunter.io/developer/565853009 --- *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 2026-06-10.*