# K-Rain BL > Bluetooth irrigation timer control app for K-Rain BL-KR, BL-24, and TC-KR models. (iPhone/iPad app by K-Rain Manufacturing Corporation.) - Source: https://appshunter.io/ios/app/k-rain-bl/id998471694 (this page in markdown: same URL + `.md`) - Developer: [K-Rain Manufacturing Corporation](https://appshunter.io/developer/1098744177) - Category: Utilities - Price: Free - Rating: 3.30/5 from 9 App Store ratings · 5 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 41 MB - Languages: American English, Croatian, Czech, French (France), German (Germany), Greek, Hungarian, Italian, Japanese, Polish and 5 more - Released: 2015-06-23 - Data updated: 2026-06-25 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/k-rain-bl/id998471694/reviews.md ## What is K? Control your K-Rain BL-KR Battery Powered Timer, BL-24 Indoor Irrigation Timer and TC-KR Hose End Timer with one streamlined App and Bluetooth Smart Technology. No more crawling around the valve box trying to program or troubleshoot your battery powered timer – this app puts full programming control in the palm of your hand. This app allows you to: · Transform your iPhone or iPad into a remote control and fully program your BL-KR, BL-24 or TC-KR controller(s) using Bluetooth Smart technology from up to 32 feet (10m) away. · Manually start, stop or suspend your controller(s) from up to 32 feet away. · Fully configure watering schedules and zones. · Detect battery levels and connection status. · Add a passcode lock to each controller for added security. · The ability to add multiple BL-KR, BL-24 & TC-KR controllers and program/control them using 1 app on your iPhone or iPad. The K-Rain BL-KR Battery Powered Irrigation Controller uses a 9V DC Latching Solenoid, and comes in 1, 2 4 or 6 station models, all rain sensor ready. The K-Rain BL-24 Irrigation Timer comes with a 110V or 220V external transformer and can be configured in 4, 6, 9 or 12 station models, all rain sensor ready. The K-Rain TC-KR battery powered hose-end timer can be used for irrigation or misting and is powered by a 9V battery. ## Key features - Bluetooth Smart Technology control - Remote programming of watering schedules - Manual start, stop, and suspend functions - Zone configuration - Battery level and connection status monitoring - Passcode lock for security - Control multiple timers ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/k-rain-bl/id998471694/reviews.md ### 2/5 — Se ha desconectado del bluetooth. *2025-03-20, version 3.1.1* Ha desaparecido de mis dispositivos y no puedo vincularlo a mi tlfno ### 1/5 — Crashing after update *2024-10-16, version 3.1.1* App was working great before iOS 18 but now when connecting to controller it crashes the app ### 4/5 — No me deja programar el riego *2020-11-28, version 3.1* No puedo programar el riego para los días de la semana ### 5/5 — Originally gave this app/product a low rating... *2020-04-27, version 3.0.1* While I loved the concept/idea, I was having some serious issues with valves coming on when they were not supposed to and flooding parts of a pasture or my riding arena. The contractor I had do the install contacted the local rep for the company, and we first talked about the issues on a conference call, and then the rep visited my property to check the set up and confirm that the app/controllers were doing their part of the watering task correctly. After confirming they were, we isolated the issue to be either solenoid or valve issues with the problem zones. Seriously good customer service and willingness to stand behind their products and make sure things were working as they should. ### 1/5 — Just Installed: Going to Need Support, Here.... *2018-09-07, version 3.0.1* I just have the key ring the BL – KR installed and so far it is a bust. Maybe it’s just me, but I have tried everything to program it with my 8+ iPhone. So far I have flooded the front yard, and my water bills will be horrific. It ran for six hours when I started it from the remote site, instead of the one hour I had programmed. It gives me the little beep have confirmation that says that my entry was excepted, and then ignores my entry. I hope that company will answer my email. This is a rather desperate situation. ## Frequently asked questions about K ### What K-Rain timers does K-Rain BL control? K-Rain BL controls the K-Rain BL-KR Battery Powered Timer, BL-24 Indoor Irrigation Timer, and TC-KR Hose End Timer. It supports models with various station configurations. ### How far can I control my K-Rain BL timers? You can control your K-Rain BL timers using Bluetooth Smart technology from up to 32 feet (10 meters) away. This allows for convenient adjustments without being physically at the timer. ### Can I manage multiple K-Rain BL timers with this app? Yes, you can add and control multiple BL-KR, BL-24, and TC-KR controllers using a single K-Rain BL app on your iPhone or iPad. This simplifies management for larger properties. ### Does K-Rain BL offer security features? Yes, K-Rain BL allows you to add a passcode lock to each controller for added security. This prevents unauthorized access and changes to your watering schedules. ### What information does K-Rain BL provide about my timers? The app allows you to detect battery levels and connection status for your K-Rain BL timers. This helps you ensure your timers are functioning correctly and have sufficient power. ### Is K-Rain BL available on Android devices? Based on the provided data, K-Rain BL is supported on iPhone and iPad. There is no mention of Android compatibility in the application details. ### How often is K-Rain BL updated? The latest version of K-Rain BL is 3.1.1, which was last updated on May 17, 2022. This indicates a history of updates, though the frequency is not specified. ### What is the age rating for K-Rain BL? K-Rain BL has an age rating of 4+. This means it is considered appropriate for children aged 4 and older. ## Version history (last 5 releases) ### 3.1.1 — 2022-05-17 Bug fixes ### 3.1 — 2020-10-28 - Added compatibility with iOS 14 ### 3.0.1 — 2018-05-17 - New user interface (includes support for Split Screen on iPad when available) - Added data synchronisation of BL-KR (version 5.1.2 and higher) and BL-24 (version 5.1.4 and higher) on the myblkr.krain.com web platform - Added the ability to create backups for controllers data (web platform account required) - Added the ability to save programmers' geolocation in the application - Software updates for BL-KR V1.0 (version 5.1.2) and BL-24 (version 5.1.4) ### 3.0 — 2018-01-25 - New user interface (includes support for Split Screen on iPad when available) - Added data synchronisation of BL-KR (version 5.1.2 and higher) and BL-24 (version 5.1.4 and higher) on the myblkr.krain.com web platform - Added the ability to create backups for controllers data (web platform account required) - Added the ability to save programmers' geolocation in the application - Software updates for BL-KR (version 5.1.2) and BL-24 (version 5.1.4) ### 2.1.1 — 2017-06-22 - Added support for Russian language - Changed the default language to English for languages not currently unsupported by the app ## Apps similar to K | App | Rating | Price | Category | | --- | --- | --- | --- | | [SmartLink Network](https://appshunter.io/ios/app/smartlink-network/id655381095) | 2.4 (7) | Free | Utilities | | [Hunter NODE-BT](https://appshunter.io/ios/app/hunter-node-bt/id1438535498) | 3.4 (51) | Free | Utilities | | [Hunter WVL](https://appshunter.io/ios/app/hunter-wvl/id1543810166) | 5.0 (2) | Free | Utilities | | [Hunter CELLKIT](https://appshunter.io/ios/app/hunter-cellkit/id1553811771) | 3.0 (2) | Free | Utilities | | [Toro Lynx Map](https://appshunter.io/ios/app/toro-lynx-map/id1014738319) | 2.7 (24) | Free | Utilities | | [Toro® ProMax™ Connect](https://appshunter.io/ios/app/toro-promax-connect/id1482805294) | 4.6 (9) | Free | Utilities | ## More apps by K-Rain Manufacturing Corporation - [K-Rain ProEx](https://appshunter.io/ios/app/k-rain-proex/id1011303136) - [KRAIN](https://appshunter.io/ios/app/krain/id1542242891) - [K-Rain BLUE](https://appshunter.io/ios/app/k-rain-blue/id1558851865) All apps by K-Rain Manufacturing Corporation: https://appshunter.io/developer/1098744177 --- *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 2026-06-25.*