# Hotmoon — user reviews > 26 indexed App Store user reviews of Hotmoon by Ustellar Technology Inc., rated 3.20/5 from 41 ratings. - Source: https://appshunter.io/ios/app/hotmoon/id1619035686/reviews - App overview in markdown: https://appshunter.io/ios/app/hotmoon/id1619035686.md - Rating breakdown: 5★ 14 · 4★ 7 · 3★ 6 · 2★ 2 · 1★ 12 ## Newest reviews (6 of 26) ### 2/5 — Can’t change modes from app. Repetitive sounds *2024-10-05* There needs to be an option to change from Bluetooth speaker mode to cocoon mode from the app. What’s the point of an app if I still need to get up to go to the machine? Also, I found myself frustrated with sounds that had so much potential but we’re just way too repetitive and fake as a result. Specific examples are the thunder, cat purring, birds chirping, waves, etc.. each sound was back to back to back noise with no room to enjoy the first time it played. I like to hear the sound of the waves pulling back after they crash, but that sound was completely overridden by another wave coming in. It was so unnatural, as waves aren’t that repetitive in reality. Instead of being peaceful, it made the noises… noisy. And annoying. There needs to be 1 or two seconds before the sound repeats **Developer response:** Thank you very much for your suggestions. The Hotmoon team will continue to optimize and enhance the user experience of software, hardware and content. ### 2/5 — Great to begin with but latest update ruined it *2024-07-16* This was a great app and sound machine for about two weeks. My daughter loved being able to choose the music and customize the light. However, the latest update rendered all of those features unusable. Now it’s just like any other sound machine. **Developer response:** We are pleased to inform you that our server update was successfully completed yesterday. We apologize for any inconvenience caused during the past two days and appreciate your patience. Please note that with this update, all users will need to register again. Unfortunately, all previously saved favorites have been cleared in this process. We understand this may be inconvenient and we sincerely apologize for any disruption. This essential maintenance was necessary to ensure that we continue to provide you with the best possible service. Your understanding and patience are greatly appreciated. Thank you for your continued support. ### 3/5 — Mixing sounds *2024-04-29* I like this machine. I bought this so I can mix my own sounds. However, the mix needs a schedule timer, I want it to turn on automatically at 9pm and turn off at a certain time. ### 1/5 — Won’t allow sign-up, so completely useless *2024-01-08* The app won’t let you input a password to create an account. You need a sign-up to connect a device. This app is most likely a scam. **Developer response:** Sorry for the inconvenience. You can register via email and also Apple ID. If you need help, you can contact us by email at support@hotmoon.com. ### 1/5 — Requires an account to work. Account creation yields error message. *2023-11-13, version 2.8.4* Rendering the product’s “smart” features unusable. ### 1/5 — Just doesn’t work properly *2023-08-27* Very buggy trying to take the Omni on or offline. Will suddenly go offline for no reason and the app has to be restarted. Large pauses in sound before looping. App keeps turning on the light for the Omni randomly. Cannot use my phone for any other sound while the app is working. If you want background noise and to watch or listen to anything at all on your phone, do not try this. All around, didn’t do a single thing well. **Developer response:** We are sorry to hear you're not happy with our app. Please feel free to contact us via mail: support@hotmoon.com. After successful pairing, every time you turn on the device and Hotmoon App, they will automatically reconnect. If not, please tap "Home"-"Device" under the device list and wait around 5-10 seconds, the device list will be highlighted that the connection is successful. If still fails, please turn off the Bluetooth, Hotmoon App, and device, and try to connect again. ## Most critical reviews (10 lowest-rated) ### 1/5 — Is this a dating app?? *2026-01-05* So this app needs my personal information just to… set an alarm? It also requires users to be 18+, which makes no sense for a basic utility. I’m not on parole, I just want to know what time it is, not a background check. An alarm clock should wake me up, not watch me sleep too. If my daily routine is part of the product, you might as well ask me to write an autobiography for you to publish too. ### 1/5 — Must be 18+ and agree to possible sale of data *2025-12-02* Just to set the time on my clock I need to use this app. I don’t understand why I need to let you sell my data just to use my clock. And why on do I need to be 18+ to use this app that is listed as Ages 4+ and also does not disclose that any personal information is collected?? Please fix the App Store listing ### 1/5 — App disconnects *2025-09-03* The app has to pair with the device each time the app is used. If I leave home and return, the app can’t find the device again until it pairs again. **Developer response:** Thanks so much for sharing your feedback. Our device connects through Bluetooth, so the Hotmoon app needs to be in the same room to pair smoothly. If it's still giving you trouble, just drop us a note at support@hotmoon.com and our friendly after-sales team will gladly help you out. ### 1/5 — Cuts out *2025-04-04, version 4.3.2* Had my cacoon pro since new years, it is now April and cuts out and turns back on multiple times and wakes me up. I absolutely despise this machine - just stick with a fan. ### 1/5 — Bluetooth speaker mode needs to turn off *2025-02-18* This only works 50% of the time. All want is noise while I sleep but there’s no way to get it out of “Bluetooth speaker mode” I do not want or need this mode all I want is the sound machine mode where I can customize my sounds and that’s it. When it’s in Bluetooth speaker mode it won’t even play like a Bluetooth speaker either so there’s literally no point!!! Super frustrating ### 1/5 — Stopped working *2024-12-13, version 3.12.1* It just stopped working one day. App won’t let me sign in or create a new account. ### 1/5 — App is always crashing *2024-08-07* I've had this maybe 7 months and the app has crashed multiple times. When I say crashed I mean you cannot play anything. I'll write into cs and suddenly a day later without any response it magically works again. One time they told me to uninstall and reinstall which made me rebuild my entire saved library, some of which I had made myself (this took a while.) Got in bed tonight ready to select a sleep noise only for it to happen again. I'd purchase another brand if I were you. **Developer response:** We sincerely apologize for any inconvenience caused by recent updates. Our technical team is now working around the clock to ensure smooth, uninterrupted service. ### 1/5 — I can’t get through password reset keep saying error message since 4:30 AM *2024-07-17* I’ve reached out to your team. I’ve gotten to response back. I’m currently waiting to see. When is this going to be taken care of your team said shortly it’s been nearly the whole day. Your app is not responding to change password. Keep saying error message your app should also, offer more times to set more alarms. app should be in full equip not having customers wait to fix a glitch over a half a day and still not yet resolved **Developer response:** We are pleased to inform you that our server update was successfully completed yesterday. We apologize for any inconvenience caused during the past two days and appreciate your patience. Please note that with this update, all users will need to register again. Unfortunately, all previously saved favorites have been cleared in this process. We understand this may be inconvenient and we sincerely apologize for any disruption. This essential maintenance was necessary to ensure that we continue to provide you with the best possible service. Your understanding and patience are greatly appreciated. Thank you for your continued support. ### 1/5 — Doesn’t allow me to sign in *2024-06-24* Great app, I purchased the sound machine and used to listen to it every night, but now every time I try to sign in, it gives me the error message, I am not sure what is happening, if it is a bug or what, very disappointing. Update: The developer reached out quickly and fixed the issue. I can use the app with no problem. **Developer response:** We sincerely apologize for the inconvenience caused. Following an investigation by our Hotmoon technical team, we identified and promptly resolved an abnormal server issue that affected login and access to content. The server has been repaired and is now operating normally. Moving forward, our technical team will enhance server monitoring to proactively prevent any recurrence of such issues. ### 1/5 — Doesn’t allow me to sign in *2024-06-22* Great app, I purchased the sound machine and used to listen to it every night, but now every time I try to sign in, it gives me the error message, I am not sure what is happening, if it is a bug or what, very disappointing. **Developer response:** We sincerely apologize for the inconvenience caused. Following an investigation by our Hotmoon technical team, we identified and promptly resolved an abnormal server issue that affected login and access to content. The server has been repaired and is now operating normally. Moving forward, our technical team will enhance server monitoring to proactively prevent any recurrence of such issues. ## Most praised reviews (10 highest-rated) ### 5/5 — Thanks Much ! *2026-07-11* Great Product- Wife and I asleep much better. **Developer response:** Thank you very much for your recognition. This will be the driving force for us to continue improving our product experience.If you need help, you can contact us by email at support@hotmoon.com. ### 5/5 — Works Great *2025-02-25* Not really sure what all of the complaints are about because I’ve had zero issues with this app for controlling my sound machine. It works exactly as advertised, nothing more nothing less. ### 5/5 — Game Changer *2024-11-29* I bought a Hotmoon brand white noise machine to use with this app, which helped me sleep all night. Definitely recommend this! **Developer response:** Thank you very much for your recognition. This will be the driving force for us to continue improving our product experience.If you need help, you can contact us by email at support@hotmoon.com. ### 4/5 — Almost Perfect! *2025-04-17* I use my Cocoon Pro to go to sleep every night—The two main issues I’m having is that my favorite sound: Deep White Noise would suddenly pause at random intervals and I would instantly wake up from the silence. The other sounds seem to work well though. Another thing is that I wish I could change to bluetooth mode from the app. Other than that I am happy **Developer response:** Thank you very much for your suggestions. The Hotmoon product team attaches great importance to user experience feedback and will continue to optimize the product. ### 4/5 — Needs some improvements to the app *2024-01-18* There needs to be an update to the schedule feature that will allow you to schedule your created favorites from the cloud options instead of just the ones on the machine. There is a timer setting but mine never runs the full hours without it stopping and having to turn the sound back on. I keep the machine plugged in at all times on a bedside table. Also, a wall adapter plug should be included with the purchase of the product. There may already be multiple schedule settings allowed but if not, that should also be an option. You should also be able to edit your favorites rather than having to delete the entire thing and start over. The sound machine otherwise is fantastic and the options are endless with the use of the app! **Developer response:** Thank you very much for your suggestions and recognition. This will be the driving force for us to continue improving our product experience.If you need help, you can contact us by email at support@hotmoon.com. ### 4/5 — Should be 5 stars.. *2023-06-14* Love this sound machine. I have not slept without a sound machine in years and this is by far the best! Great quality speaker and sound options! Bonus features like using wirelessly, breath light and off line sounds. 4 stars instead of 5 because you can not easily listen to each sound individually. The “all sound” page creates a mix with each sound as you click through, then you must manually remove the previous sound to hear the next sound separately. - hopefully an easy update that will make this the last new sound machine I ever shop for! **Developer response:** Thanks for your rating! You can tap the square picture of the sound you are playing, then you can stop it easily. Also we are developing what you expected. ### 3/5 — Works Great for Awhile then doesn't *2026-01-03* Love the device when it's working. When it acts up, the sound will turn off and back on—no clue how to fix it. I went for a year without using it. I plugged it back in recently; it worked great for about a week, but now the sound is stopping again. Please update the software again. ### 3/5 — So close *2025-08-30* There are so many things that I like about this app, but the one issue I have overshadows all of them. Some sounds that are working perfectly will just suddenly begin to pause for a few moments. I have had almost 10 sounds do this now and they are unusable at this point. It will just suddenly stop making any sound before picking back up. It wakes me up every time. This isn’t a plug or connection issue, it is just the sounds themselves. It’s been going on for months with no fix. Very disappointing **Developer response:** Thanks so much for your feedback. If you run into any issues with your device, please reach out to us at support@hotmoon.com. Our after-sales team will be happy to follow up and make sure everything gets taken care of. ### 3/5 — Cuts out *2025-03-24* I’ve had this sound machine a few months. Was great but recently it started stopping every couple minutes then comes back on. Annoying and defeats the purpose of a sound machine. Please fix. ### 3/5 — App won’t let me create more than one schedule *2024-10-05* The app won’t let me create more than one schedule without saying there is a conflict with my other saved schedule. No matter what I try, it says there is a time conflict even when there isn’t. **Developer response:** We are very sorry for the inconvenience caused. We have fixed the issue and can use it normally after updating the app at the App Store. If you need help, you can contact us by email at support@hotmoon.com. --- *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 2026-09-01.*