# Scent Tech — user reviews > 44 indexed App Store user reviews of Scent Tech by 俊 谢, rated 2.22/5 from 63 ratings. - Source: https://appshunter.io/ios/app/scent-tech/id1662466433/reviews - App overview in markdown: https://appshunter.io/ios/app/scent-tech/id1662466433.md - Rating breakdown: 5★ 14 · 4★ 1 · 3★ 2 · 2★ 6 · 1★ 26 ## Newest reviews (16 of 44) ### 2/5 — No WiFi *2026-03-20* The app does not connect to wifi even though it is is listed as an option. Only Bluetooth works. ### 2/5 — Terrible App, Wonderful Diffser *2026-02-13* I love the diffuser but the app is basically useless. I have two diffusers so I changed the device names to match the area of the home. Every time I go back to the app, it’s defaulted back to the factory settings name. Please fix. ### 2/5 — WiFi connectivity doesn’t work *2025-12-01* The WiFi connection couldn’t work. The app could only connect the device through the Bluetooth. The diffuser device cannot be effectively operated without connecting to the app itself which is frustrating. The app needs some upgrade & the device needs to be able to operate with or without the app. ### 2/5 — Not properly working *2025-11-24, version 1.2.3* Will NOT CONNECT TO WIFI 🤯😡😡😡 ### 2/5 — Great concept lagging execution *2025-11-18* Great concept but very glitchy. The app doesn’t show the device. I’ve added it multiple times and when I go to add it you can see it listed. Just needs some work. ### 2/5 — Operating instructions/issues *2025-10-20* I agree with the first review given. The app does not work properly and it’s very frustrating trying to set it up. Please update the app and give simple instructions on how to operate machine. ### 1/5 — Needs a lot of development *2025-09-27, version 1.2.2* Needs a lot of development. Great for adding multiple devices but you cant assign names to them - the app just reverts back each time you come out of the app.. ### 1/5 — Not working any more *2025-09-10, version 1.2.1* Not sure what happened Bluetooth not working anymore ### 2/5 — Needs lots of work *2025-08-30* Although the Bluetooth works, it doesn’t seem like much thought was put into this application. WiFi is not working, I can’t add my diffuser to any group that I make and the app all around is cumbersome and lacking functionality. Please make an update for this app because your device seems like one of the better models available. ### 1/5 — The app is annoying *2025-08-16, version 1.2.1* The app allows for basic function control but forgets everything on a regular basis. If you try re-naming individual devices it just wipes it off as soon as you log back in, whats the point?? Surely someone would test that before letting the app go live!!! ### 1/5 — No Bluetooth Connection *2025-07-27* I bought two diffusers and neither will connect via Bluetooth or any other method. Will not allow me to make an account either. ### 2/5 — Confused *2025-07-14* The machine works however it won’t pick up on WiFi or let the QRcode work to register in the app Bluetooth pick it up and it’s on just got it so I am already having issues ### 1/5 — Mathis app is absolutely worthless.impossible to set up. Hours of my life that I’ll never get back. *2025-05-23, version 1.2.0* I hope the diffuser isn’t as useless as this app!!! ### 1/5 — Non fonctionnel *2024-12-24* Ne fonctionne pas ### 1/5 — Horrible *2024-11-05, version 1.1.6* Will not connect to blue tooth. Have another device- different maker and works beautifully!!! Will be returning this!! ### 2/5 — No se añaden dispositivos *2024-10-23* No me es posible añadir los dispositivos al inicio rápido, cada vez que intento entrar a alguno de mis difusores, tengo que buscarlo manualmente y en la pantalla principal de “mis dispositivos” siempre está vacío. Ya los nombre, configure y todo lo necesario del manual, sin embargo siguen sin aparecer y por consecuencia no puedo crear grupos. Tengo 6 difusores y es cansado estar entrando a configuración individual cada que quiero modificar algo. Ojalá lo puedan corregir ## Most critical reviews (10 lowest-rated) ### 1/5 — Absolutely Useless!!! *2026-03-15, version 1.2.5* As previously stated this app is totally useless in every respect. Makes the diffuser very ‘ordinary’, expensive and not as advertised! ### 1/5 — App needs a lot of work *2026-02-14* WiFi doesn’t work. Bluetooth works 50% of the time and then disconnects randomly the rest of the time. App is confusing and complicated to set up automatic schedules. I have several WiFi air purifiers and the apps are all simple and effective to set up automatic schedules. Was really hoping for better app. Please fix ### 1/5 — Flawed and Dated App *2026-01-28, version 1.2.4* Not only does the app look dated but it doesn’t work well. Renaming devices doesn’t work, schedules are limited and the design looks appalling. ### 1/5 — Doesn’t work *2026-01-09, version 1.2.4* Unsure why the Amazon reviews for this diffuser are so high when the app is useless. I’m returning the diffuser because of the app - I can only get it to connect via Bluetooth and I have to add the diffuser every time I want to use it. ### 1/5 — Won’t connect *2026-01-03, version 1.2.4* The device won’t connect via Bluetooth. Never get a code to connect any other way. I’ve already added my oils to this thing and it won’t work. What a waste of money. ### 1/5 — Garbage *2025-12-23* Totally useless. Every time it just reports SESSION TIMEOUT no matter what. Cannot connect to the device. Fail fail fail at your jobs. Hire a professional to build your apps otherwise you’re selling garbage. Garbage App. Horrible. ### 1/5 — App doesn’t work *2025-12-15, version 1.2.3* Good luck trying to save your device. This is the worst app I ever used ### 1/5 — Pointless app *2025-12-12, version 1.2.3* Can’t add devices or control them ### 1/5 — App *2025-12-07* This app is not working properly . It only will connect Bluetooth , if it even does that. Please fix connection issues . ### 1/5 — Useless *2025-11-29, version 1.2.3* It just doesn’t work. Can’t register. It just sends you around in circles. Deleting ## Most praised reviews (10 highest-rated) ### 5/5 — Best App *2025-10-27* I own 8 different diffusers which had me using three different apps. This one is by far the best. ### 5/5 — Great *2024-08-20* Very easy to use. Bluetooth connects immediately. Glad I heard about it ### 5/5 — Awesome *2024-08-20, version 1.1.4* Wish I knew about this sooner. Love it. ### 5/5 — Easy to use *2024-08-20* Easy to use, works great! ### 5/5 — Easy to use *2024-08-19* Bluetooth connected right away ### 5/5 — Works great *2024-08-19* I’m confused with the other comments. Bluetooth paired instantly. I have 3 machines and it automatically grabbed each device. Maybe they need to download the new update ### 3/5 — Add device issue *2025-07-23* Not sure how to add a Bluetooth device to the Home Screen, every time I want to control the device I have to go to add a device screen. ### 3/5 — Machine renaming needs improvement *2025-05-23* You can only rename machines where it saves if you create an account for 4g. Then you can go to Bluetooth and rename the device. You don’t really need to do this though if you don’t mind not naming your device then it totally works fine with many machines. ### 3/5 — Language *2024-10-07* How can I change the language to English? ### 2/5 — Limited Working Function *2026-04-12* Only Bluetooth Connection works. Menu options for QR and WiFi are available but neither work. If you intend to control the device remotely get a different device with a better app. --- *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 2026-08-19.*