# RoyPow Fish. > Mobile Bluetooth app for monitoring battery management systems. (iPhone/iPad app by U&C INTERNATIONAL INDUSTRIAL COMPANY LIMITED.) - Source: https://appshunter.io/ios/app/roypow-fish/id6446618041 (this page in markdown: same URL + `.md`) - Developer: [U&C INTERNATIONAL INDUSTRIAL COMPANY LIMITED](https://appshunter.io/developer/1639662642) - Category: Utilities - Price: Free - Rating: 1.50/5 from 4 App Store ratings · 4 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 27 MB - Languages: English, Chinese - Released: 2023-03-30 - Data updated: 2026-06-04 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/roypow-fish/id6446618041/reviews.md ## What is RoyPow Fish.? Battery BMS Monitor APP via Mobile Phone Bluetooth Connection ## Key features - Bluetooth connection - Battery BMS monitoring - Real-time parameter viewing - Mobile phone compatibility ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/roypow-fish/id6446618041/reviews.md ### 1/5 — App doesn’t work *2025-03-13* App doesn’t work. Just says we’re sorry 🤦🏻‍♂️ ### 1/5 — Batteries showing less then they should be *2024-02-01* I am also having my batteries reading 84 and 81 % routinely these are 200ah and when I first set them up one was 203ah other 198ah after first charge. These are on a charger on my boat and have never been run down they are six months old. O noticed this app doing this from day one. There is something wrong between the app and what the BMS is saying. The only time the app would read 100% was when I charged the batteries until BMS shut off on each battery then the app would magically read 100% at 203ah and 198ah. Please fix this real time status something is either wrong with the app or what the BMS is saying. ### 1/5 — Terrible update *2024-01-28* With this update they have removed the battery health and actual capacity from the screen. I believe this is to hide problems with the batteries they are selling. I have received two different batteries from them with less than the design capacity. Both of them showed in the app with 84% health and 175ah capacity. Buyers beware! ### 3/5 — Good app, has issues connecting when there is a lot of Bluetooth around *2023-08-15* I was recently attempting to connect to my battery in an area where I was surrounded by RVs with lots of Bluetooth. When there are many Bluetooth devices, the list of Bluetooth devices adds the same device over and over to the list. Further there seems to be a limit to the total number of devices you can handle from the list of Bluetooth devices you get from the OS. What I mean by that is that I couldn’t see the battery’s Bluetooth signal in the app. When I turned off my iPhone and Apple Watch, I was able to see the battery. I think this is because you have a hard limit on the number of devices and my battery was after the limit…until I switched off a couple of devices. I’d be happy to discuss this further, please respond to this review with contact info & I’ll happily provide more info. If this app is open source, I’d also be happy to fix the problem. (Or if you could release the source to me). ## Frequently asked questions about RoyPow Fish. ### What devices does RoyPow Fish support? RoyPow Fish is available for iPhone and iPod devices. It was last updated on May 6, 2024, with version 1.2.30. ### How do I connect RoyPow Fish to my battery BMS? The app connects to your battery BMS via Bluetooth. Ensure your device's Bluetooth is enabled and the app has permission to access it. ### What information can I see with RoyPow Fish? You can monitor your battery's management system (BMS) and view various parameters in real-time through the mobile phone connection. ### Is RoyPow Fish free to use? Yes, RoyPow Fish is available for free. There are no in-app purchases or subscription fees required to use its monitoring features. ### What is the age rating for RoyPow Fish? RoyPow Fish has an age rating of 4+, making it suitable for a wide range of users. It was first released on March 30, 2023. ### How often is RoyPow Fish updated? The app was last updated on May 6, 2024, indicating regular maintenance and potential feature additions. The current version is 1.2.30. ### Does RoyPow Fish have ads? No, RoyPow Fish does not contain advertisements. The app is free to download and use without any ad interruptions. ### What is the user feedback on RoyPow Fish? Based on 4 ratings, RoyPow Fish has an average rating of 1.5 stars. This suggests that users have had mixed experiences with the application. ## Version history (last 5 releases) ### 1.2.30 — 2024-05-06 Functional details are improved to optimize user experience ### 1.2.28 — 2024-03-28 Functional details are improved to optimize user experience ### 1.2.27 — 2024-03-28 Functional details are improved to optimize user experience ### 1.2.26 — 2024-03-20 Functional details are improved to optimize user experience ### 1.2.25 — 2024-02-01 功能细节改进，优化用户体验 ## Apps similar to RoyPow Fish. | App | Rating | Price | Category | | --- | --- | --- | --- | | [SOULBIBIQ](https://appshunter.io/ios/app/soulbibiq/id6450147487) | 1.7 (14) | Free | Utilities | | [JOYBIBIQ](https://appshunter.io/ios/app/joybibiq/id6446808054) | 1.6 (36) | Free | Utilities | | [XLH](https://appshunter.io/ios/app/xlh/id6450952860) | — | Free | Utilities | | [Big Beard Battery](https://appshunter.io/ios/app/big-beard-battery/id6460975772) | 5.0 (1) | Free | Utilities | | [LVNOON BMS](https://appshunter.io/ios/app/lvnoon-bms/id6736906366) | — | Free | Utilities | | [Lithionics Battery Monitor](https://appshunter.io/ios/app/lithionics-battery-monitor/id1437635365) | 4.0 (23) | Free | Utilities | ## More apps by U&C INTERNATIONAL INDUSTRIAL COMPANY LIMITED - [Mobile EMS](https://appshunter.io/ios/app/mobile-ems/id1639662640) All apps by U&C INTERNATIONAL INDUSTRIAL COMPANY LIMITED: https://appshunter.io/developer/1639662642 --- *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 2026-06-04.*