# TrolMaster — user reviews > 51 indexed App Store user reviews of TrolMaster by Trolmaster(Xiamen) electronics Co., Ltd, rated 3.96/5 from 346 ratings. - Source: https://appshunter.io/ios/app/trolmaster/id1227517611/reviews - App overview in markdown: https://appshunter.io/ios/app/trolmaster/id1227517611.md - Rating breakdown: 5★ 209 · 4★ 42 · 3★ 23 · 2★ 16 · 1★ 56 ## What do users think of TrolMaster? Overall sentiment: mixed **Pros** - ✅ Excellent hardware/controller quality - 📱 Enables remote monitoring capabilities - 🎛️ Good control functionality when working properly - 📊 Useful data logging and graphing features - 👍 Reliable equipment performance - 🔔 Notification system when functioning - 💼 Comprehensive system for environment management **Cons** - 🐛 App crashes frequently on iOS - ⚠️ Real-time data updates are slow/delayed - 📉 Graph functionality severely limited - 🔄 App doesn't refresh automatically - ❌ Notifications frequently fail or missing - 📱 Poor app performance relative to hardware cost - 🎯 Data accuracy issues (15% humidity variance) - ⏱️ Military time only, no 12-hour option - 💰 Expensive components with limited app functionality - 🔌 Requires SD card for firmware updates - 📺 Inconsistent display across devices - 🎨 Outdated/prehistoric user interface - 📢 Intrusive ads that cannot be disabled - 🔗 Poor WiFi connectivity handling **Commonly reported bugs** - App crashes on iOS 14 and later versions - App freezes and becomes unresponsive - Graphs rotate horizontally making them unreadable - Notifications stop working after app updates - Data stuck on previous day, won't update - Random alarms received after controller deletion - App doesn't show current time/data on login - Icons overlap with text labels - Dead spots in data collection charts - Inconsistent data readings across multiple devices - App fails to load past 24-hour data - Login failures on account creation - App crashes when opening due to advertisement - Settings changes not saving on iPad **Most requested features** - Overlay humidity and VPD data on temperature graphs - Zoom capability for detailed data analysis - Manual override controls for devices via app - Export and print functionality for data reports - Real-time light output percentage display - Ramp up/ramp down features for CO2 levels - Enable/disable thermostat hot start delay from app - Show thermostat on/off status in app - Statistical summaries (MIN/MAX, averages, runtime) - Multiple user accounts with change logs - Improved graph scaling based on actual data ranges - Overlay multiple sensor data on single graph - Desktop version of app - Firmware updates without SD card requirement - More descriptive alarm messages with specific values - Control for ballast trigger cords on high temp - Standard plumbing fitting compatibility for sensors - AquaX override controls on app ## Newest reviews (12 of 51) ### 4/5 — Alex *2022-10-17, version 2.4.3* All was good until I stopped getting any notifications and almost lost my crop because of it! Fix it please! ### 2/5 — Great controller, crappy app *2022-05-30, version 2.4.3* The TrolMaster HydroX is awesome, works great with everyday use cases and is easy to install and set up. The app however lacks functionality and is very slow. Constantly freezing and not showing real time data. ### 4/5 — Hard to figure out, but…….. *2022-05-16, version 2.4.3* I had trouble getting it all figured out…. Once I calmed down and did, it’s AMAZING!!!! Just take your time to learn…. ### 3/5 — App problems *2022-04-04, version 2.4.3* The app is slow, needs to improve but overall it’s okay to use if you have patience. ### 3/5 — Work great sometimes *2021-12-15, version 2.4.3* I love the app other than I can’t seem to it to give me live updates. Constantly having to close and open app to get current readings. Maybe I’m doing something wrong. ### 4/5 — Great but could easily be much better *2021-09-12, version 2.4.3* The resolution on the graphs is trash. It’s pretty much meaningless to look at them when you have the data logged but can’t glean any useful info because all you’ve got is a zig zag line hovering somewhere between 70f and 100f. I’ve got some $20 cheap sensors that log data more usefully. The ability to control devices and equipment via the app, proper wiring, interfaces and connections is huge but I feel like y’all aren’t meeting me halfway with a proper user interface that can actually zoom in on and analyze data more usefully. ### 2/5 — LOVE the idea, some worked needed to make it AAA system it should be *2021-03-27, version 2.4.3* Trolmaster bugs/issues: The graphing system is a wonderful concept with implementation that needs a lot of work. 1) change NULL values to a red dot or red line going from last recorded value to first recorded value after null. This helps the viewer ascertain how long the system wasn’t giving readings whilst not confusing viewers with a sudden drop. 2) Graphs should not be shown in the range 0 to 100 degrees if my sensor values are between 70-75 making the changing sensor values imperceptibly small on the graph. If my values over the given period are between 70-75 then make the graph boundaries 60-85 degrees or something similar. 3) Charts are incredibly powerful tools to immediately analyze and evaluate your room conditions. These charts need to be improved upon, massively. Why can’t one graph overlay all sensor data in the same chart using different colors? -why can’t I manually override and turn on/off lights even outside of —why do I need an SD CARD to do a firmware upgrade? And worse, I need to backup all settings and then restore those settings. Terribly inconvenient. -Alarms should be immediate be more helpful -Terribly slow updating. When you open the app and login to your controller the information you’re saying may have been over a day ago and has to be manually updated. Why not have it update automatically at more frequent intervals? ### 4/5 — Nice equipment *2021-03-18, version 2.4.3* I love this unit but besides needing to buy multiple parts to operate a totally automated system and the app doesn’t refresh as fast as I’d like I’d say it’s a great system for beginners as well as veterans also I think that the co2 sensor should be provided with the controller regardless it’s hard to swallow $200 on a sensor that should be a given because it is needed along with the temp and humidity sensors but overall I’m happy with the unit and I’ll just pick away at the needed parts slowly to build the ultimate system which will have a heavy price tag in the end but hopefully worth it ### 4/5 — Apps been Crashing none stops *2020-09-19, version 2.4.3* Hey guys, I haven’t been able to log into my TrolMaster for a coupe of days now. Every time I try to open the app it crashes. Can you please take a look and see what’s going on. I check it everyday when I’m not at the garden and I haven’t been able to monitor through the app. Thanks. ### 3/5 — Love TrolMaster but the app is prehistoric *2020-09-16, version 2.3.9* No export, hard to use commercially for data tracking. A simple print or email a time frame sort function wouldn’t hurt. It’s better for on the fly checking and charts, but bad interface and bad function to get the info you need. Sideways phone for some charts and straight for others and have to try to pinpoint scroll to find the highs and lows on the chart lines. Lots on dead spots where connection failed on data collection, which isn’t the case as I don’t lose WiFi or power all the time like the charts fall off and suggest. If it went to a desktop it might even be easier. Feels prehistoric honestly. ### 3/5 — Have 5 complete hydro and aqua-x systems *2020-08-19, version 2.3.9* They work fine but need three things to make it 5 star. 1). Need to see actual light output percentage on the main screen and on the app. The auto dim works but can’t tell how far lights are dimming when temps get warm. You can see it on the main controller in a side menu but it should be on the main screen, and it’s not on the app at all. 2. The ph and ec sensors don’t fit into any standard plumbing fittings due to the . Super hassle. 3. Aqua x needs an override control on the app for checking watering zones like on the controller. Overall good system but it needs refinement. :) ### 1/5 — Lots of glitches! *2020-07-07, version 2.3.9* Tons of issues that others have mentioned. 1) app does not update real-time on iPhone. I’ve tried to force close the app and slide down from top to get it to refresh but it almost never shows the current time on bottom. 2) no ramp up or ramp down. C02 levels should be dropped for night time, I would like a ramp down feature to accomplish this. 3) cannot enable or disable hot start delay for thermostat from app 4) cannot tell when the thermostat is on from the iPhone app. 5) annoying ad that pops up every time you open app! 6) cannot update device from app need a SD card. Also, it would be nice to have statistics. Data is very helpful, information live average lights on temp, average lights on humidity, average time equipment was running in a 24 hour period. MIN/MAX temp and humidity for 24 hour period. ## Most critical reviews (10 lowest-rated) ### 1/5 — Very poor functionality especially for the price of equipment *2023-06-03* Your products costs hundreds to thousands each but your app feels like it was developed for $.99. The functionality of the graphs when trying to view anything else besides the last 24 hours, is zero. It rotates horizontally and makes it unreadable, no way to fix this. It would be great if you guys put a little effort into fixing it considering how much you make off of us. Thanks for penny pinching. Oy vey. Im sure thats a language you guys understand. ### 1/5 — No notifications after recent update *2023-03-11, version 2.4.3* After my app updated I don’t get notifications which is bad I’ve had my ac go out and it didn’t tell me my room got to hot until I clicked on the app and saw the alert ### 1/5 — Very Disappointing *2022-06-13, version 2.4.3* Spent a ton of money on the Hydro X Pro and data station for the capability of remote monitoring. Worked great for a couple weeks, other than the delay in data. Worked with tech support for nearly a month, numerous firmware updates, and still nothing. The app stuck on a day and would not change. Tech even sent a replacement controller ( obviously it was a return because it had room names programmed). Same problem except this controller’s data was stuck on a different day. I tried all four TM apps with the same results. Deleted my controller from all apps and I randomly receive alarms. TrolMaster controllers and components are exceptional. The apps are a joke. I will be looking at other manufacturers for controllers with remote monitoring capabilities. **note how you are unable to enter a zero or 1 star rating. ### 1/5 — Poor product poor customer service *2022-04-29, version 2.4.3* Been calling for past few days and even had store switch out my system and still system won’t work it’s a issue w the programming from Trolmaster direct… called over and over and over and nothing ### 1/5 — Very basic *2021-07-15, version 2.4.3* Very basic controller app doesn’t let you control the alarms and doesn’t even give you a report of why the alarm is going off. Can’t set it to regular time everything runs off military time. It’s very basic and needs updating. Reminds me the first apple computer I used in 3rd grade ### 1/5 — Joke *2021-06-04, version 2.4.3* For all the money invested into the trolmaster, the app is a joke. Like literally a complete joke. Not a single reading on the app, match what the trolmaster shows in the room. And it’s not just off by a little. It’s like 15 percent difference in humidity. 500 ppm difference from the reading In the room on co2. I just can’t believe they would even offer such a poor app for an otherwise good system. ### 1/5 — Poor setup *2021-04-03, version 2.4.3* I have issues setting these up almost every time. I have to call in and wait for phone calls back to have the system reset.. kinda stupid if you ask me ### 1/5 — Never updates *2020-12-12, version 2.4.3* Worst app. Great that it works fine with the HydroX but absolutely never is up to date or time with my hydroX pro I can have it open on three different devices on the same WiFi and the iPhone app will sit and sit and sit. I close and reopen the app made sure I killed it all the way. No change, turn my phone off and back on nothing. Straight up garbage between the %+- of error across all the devices I have no idea what’s truly going on ever in a 3k plant room. I resorted to cameras trained on temp/humidistat’s very near my “zone” controllers. Please fix this application interface with the HydroX pro. ### 1/5 — App keeps crashing! *2020-09-25, version 2.4.3* App was great but this issue should be fixed fast because there is a lot of money invested for it to work properly now I have to make double trips to the shop because it keeps crashing on me and now it is completely useless! ### 1/5 — Does not work on IOS14 *2020-09-23, version 2.4.3* Used to work ok. Now I can’t even open the app without it crashing. I am updated to the latest version, but cannot open it without crash. Completely useless now.... ## Most praised reviews (10 highest-rated) ### 5/5 — This app is great but one thing would make it so much better *2021-12-17, version 2.4.3* App is amazing , customer support five stars , one thing I would like to see personally would be ... When looking at the temperature it would be useful to see an overlay of the humidity and Vpd was viewable as an overlay. So when I’m looking at 79 degrees at 5pm it would be great to know the humidity and Vpd at said time the days before without having to pinpoint that exact moment to look it up separately ### 5/5 — The best environment management available! *2020-12-17, version 2.4.3* The features are great, the system has been flawless since I installed the first one and remote management is it excellent! ### 5/5 — Crashes - will not stay open. *2020-09-18, version 2.4.3* Entire grow in full swing and this app along with the very expensive hardware is locked out. Bought this through my lighting supplier. Bad mistake ### 5/5 — Great for checking in *2020-09-17, version 2.4.3* Not much you can do with the app but see what the current status is . ### 5/5 — Huge help!!! *2020-04-10, version 2.3.9* Love this APP because it allows me to leave my grow and not worry when I do! I get notified if something is out of range so I can deal with it ASAP. Thanks for allowing me to not be married to my grow anymore!!! 3 thumbs up!!! ### 5/5 — Update data faster *2020-04-09, version 2.3.8* Wish the app update data real tome data faster. Takes to long and too easy to get fooled from past recorded data. Real time, real quick, would be real nice! Other then that. It’s legit ### 5/5 — Must have!!!! *2020-03-31, version 2.3.8* Great products along with supreme customer service. Highly recommended!!! ### 5/5 — Gooseman518 *2020-03-26, version 2.3.7* Great product love the ability to control my room ### 5/5 — Great product *2020-03-24, version 2.3.7* Meets all my needs. Do wish the components were not so expensive. But their worth it! ### 5/5 — Frank *2020-03-22, version 2.3.7* Wish I could control it from the app it would be nice --- *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.*