# Laifen — user reviews > 103 indexed App Store user reviews of Laifen by Shenzhen Shuye Innovation Technology Co., Ltd., rated 2.40/5 from 74 ratings. - Source: https://appshunter.io/ios/app/laifen/id6463205325/reviews - App overview in markdown: https://appshunter.io/ios/app/laifen/id6463205325.md - Rating breakdown: 5★ 20 · 4★ 2 · 3★ 6 · 2★ 3 · 1★ 43 ## What do users think of Laifen? Overall sentiment: negative **Pros** - ⚡ Quick device pairing and connection - 🎛️ Customizable toothbrush settings (strength, frequency, oscillations) - 🔄 Real-time setting synchronization with device - 🦷 High-quality toothbrush hardware and materials - 📦 Excellent packaging and product design - ✨ Simple and straightforward user interface - 🚀 Powerful motor performance - 🔧 Firmware update capability **Cons** - 🐛 Verification code not sent via SMS or email - 🔐 Mandatory login requirement for app access - 📱 Missing text/labels in app interface - 🔌 App connectivity issues with toothbrush - 💾 Data persistence problems (settings not saved) - 🌐 Server-side errors during authentication - 🔄 Frequent app crashes and freezes - 👤 Displays other users' toothbrush devices - 🗑️ Cannot delete phantom toothbrush entries - 🌍 Poor internationalization (language support issues) - 📊 Blank or non-functional app screens - ⏱️ Slow verification code delivery - 🔐 Excessive data collection for unnecessary features - 🎯 Requires app for essential toothbrush features **Commonly reported bugs** - Verification code never arrives via phone or email - Get Code button permanently greyed out - Server returns incorrect data errors - Request timeout errors during account creation - App shows blank screens with no text labels - Buttons present but unlabeled/non-functional - App disconnects from toothbrush after profile creation - Cannot add new toothbrushes to account - Phantom toothbrush devices appear in account - Cannot disconnect or delete toothbrush entries - User profile information not editable - Text display issues with non-English languages - App freezes after recent updates - Toothbrush won't turn on after charging - Firmware calibration process fails - App shows connected status but device unresponsive - Phone number format validation rejects valid numbers **Most requested features** - Apple Health integration and sync - Battery percentage display - Dark mode option - Brushing timer in app - Real-time brushing feedback and notifications - Brushing statistics and performance tracking - Reward points system for achievements - Pressure detection alerts - Support for more than 3 toothbrush devices - Device identification display - Troubleshooting and user guide within app - Brushing quality metrics (similar to Oral-B) - Automation features for brushing reminders - Toothbrush model selection in setup ## Newest reviews (16 of 103) ### 4/5 — Impossible registration - fixed!! *2026-06-30, version 3.3.3* App requires a registration code, either via email or via a text message. Neither works, the unlock code simply does not arrive, making the app useless. Waste of time. Update: I was finally able to get a registration code via email. Don’t bother trying the text message route. If email fails, try again a few days later. Pairing the toothbrush is a little convoluted but works eventually. Tuning options seem good, with some decent functionality. Nothing particularly outstanding. App seems ok overall. Rating updated! ### 3/5 — App needs priority *2026-05-27* Usually anytime I open the app it takes forever or doesn’t work. For an electric toothbrush that needs to work, it kind of needs to be a priority for the company ### 2/5 — Verification code *2025-12-11, version 3.2.1* Not only is it silly to have to sign-in to a toothbrush app…they don’t send a verification code anywhere near fast enough. ### 1/5 — App does not work *2025-11-30, version 3.2.0* App does not work. Doesn’t send verification code ### 1/5 — App doesn’t connect *2025-11-06, version 3.1.0* To difficult to connect to app ### 1/5 — Awful! *2025-10-21, version 3.1.0* Lordy, how many times do you have to request a code to be able to access the app the first time? Tried innumerable times and ways including both phone number and email. Pathetic - 1 hour later, I still can’t get access. Worthless! ### 1/5 — 为啥非要登录？ *2025-10-04, version 3.1.0* 我只是要连接个牙刷而已 ### 1/5 — Won’t open *2025-09-17, version 3.0.6* App will not let you log in … doesn’t send a code to either phone or email ### 3/5 — Please add Apple Health sync *2025-09-11* I’m using the Laifen toothbrush and really enjoy the experience. However, I strongly suggest adding support for Apple Health integration to sync brushing time/records. This would make it easier to manage all health data in one place, and it would also keep Laifen competitive with other brands like Philips and Oral-B. Hope the team can consider this in future updates. Thank you! ### 1/5 — Why I need an app to use my toothbrush??? *2025-09-03, version 3.0.6* It’s like taking off your pants to fart,100% unnecessary! ### 1/5 — Data mining *2025-09-01* They intentionally default the toothbrush to not have 30sec reminders to push you installing the app. The app requires Bluetooth which is linked to your physical location and wants your phone number to login. I will change my rating to 4 stars if they commit to defaulting the 30sec ### 1/5 — 标榜以用户为中心的虚伪行为可以停下来了 *2025-06-20, version 3.0.3* 很恶心的一次购物体验，起初想买usimile或者舒克，看到你们老板说以客户为中心巴拉巴拉一大堆，竟然被你们这种营销模式说动洗脑了，一味的模仿苹果的包装但是又做不到苹果的内核，牙刷插头插不进去拔不出来，搜了一下原来这样的问题都有，没有完善的产品也拿来卖吗？还给老子手弄破了……退货发现还要写小纸条还要保持你的东西完好，谁保护一下我的心情完好？而且这种垃圾东西还要二次销售，你反场都重新做一下吧…… ### 3/5 — 能不能加上设备管理功能 *2025-06-05* 之前旧的牙刷寄回厂家了，但设备列表里面还有，无法连接，也无法删除，还一直处在最前面 **Developer response:** 您好，长按卡片就可以删除设备的 ### 1/5 — 刷个牙还要短信验证 *2025-05-24* 每次刷个牙都要登录，每次登录都要短信验证。非常感谢这么长时间还进行答复，对于这个答复我非常满意。看了app的隐私政策也很有道理，考虑到我自身的使用及安全，今后徕芬所有使用app进行管理配置的硬件设备将不再考虑够买和使用，以减少带来的不便和安全隐患。 **Developer response:** 为了您的设备数据安全，是设置了通用的30天有效期哦，请您谅解，如是有效天数不对，可否通过联系一下我们协助查看 ### 1/5 — Stylish but junk *2025-05-13, version 3.0.1* This is the second Laifen Wave Aluminum Electric Toothbrush ordered as a replacement for the first. Both charged for over 3 hours and failed to turn on. The app is also as useless as the toothbrush. I am returning this to Amazon tomorrow for a full refund. Laifen.com customer service failed to respond to my email inquiry. ### 1/5 — 这个app可以说是徕芬体验最差的一款产品 *2025-04-16* app非常不易用，很多小bug，而且连刷头到期更换提醒这种简单有用的功能都没有，体验很不好 ## Most critical reviews (10 lowest-rated) ### 1/5 — This can be improved… *2026-06-26, version 3.3.3* 1- The Bluetooth connection is unstable. The device “forgets itself” as a Bluetooth device and is no longer listed on the iPhone. This defeats the purpose of having the App. 2- Features like “cleaning the bristles when angled at 70 degrees” is faulty: the brush doesn’t sense it, and this never works. I just got this device, and I am wondering if I bought it for a change or just to maintain the best possible oral health… I may return it… ### 1/5 — Useless *2026-06-16, version 3.3.3* Activation code should be sent via phone or email but no code so app is completely unusable. Utter waste of time - very disappointing ### 1/5 — Can’t activate *2026-06-06, version 3.3.2* Asks for a phone number to send an activation code to. Never arrives. ### 1/5 — It never sends a confirmation code to login *2026-03-31, version 3.2.4* The app is absolutely useless because when you first launch it, it asked you to login and gives you two options. One is to enter your phone number and the other is to enter your email address then you haven’t sent you a code that you need to type in within 60 seconds and the code is never sent. I tried both options. I tried my phone twice and I never received a text message and I tried to email once and I never received the email. I like the toothbrush I really have no idea why you need an app for a toothbrush, but I thought I’d try it. ### 1/5 — Worst! *2026-03-24, version 3.2.4* App doesn’t work. It doesn’t send you verification code no matter how much you try! ### 1/5 — Poor app *2026-02-26* The app has worked once and never again. ### 1/5 — app不能精确显示电量 *2026-02-11* 电量只能显示20 40 60 80 100，不能精确显示实际电量，而且和牙刷上电量颜色显示不一致。 ### 1/5 — No verification code *2026-02-04, version 3.2.4* App doesn’t work, no verification code to login ### 1/5 — 虚假宣传 *2026-01-06* 莱芬电动牙刷i2发布会里宣传有轻提醒和强纠正两种过压提醒方式，但实际在app里却没有该功能 ### 1/5 — Verification code *2025-12-25, version 3.2.2* The code take forever and a day to be sent out. This app is trash ## Most praised reviews (10 highest-rated) ### 5/5 — Great action for cleaning teeth / app is fine *2026-05-30* The brush does a great job of cleaning teeth. High speed action is soft but effective. Mouth feels good. The app is fine. I don’t understand what issues are. Note that to turn on brush you must hold power button for at least 5 secs when it is stored in travel mode - prevents accidental triggering. ### 5/5 — App设计很漂亮 *2025-10-15* 希望增加刷牙历史记录功能，最好能在苹果健康里看到每天的刷牙次数。有时候会想不起来自己今天有没有刷牙，需要看一下历史记录。 ### 5/5 — 请求支持Apple health api *2025-09-18, version 3.1.0* 能够添加刷牙时间 ### 5/5 — This is a great product *2025-05-02* The toothbrush works fine without the app, but this unlocks the full potential of the tooth brush. Now my toothbrush is on steroids with the high frequency mode. I don’t see what the negative rebate about. I have no complaints. ### 5/5 — Awesome! *2025-02-08* Absolutely no issues with the app or connectivity. Everything is working great. Toothbrush itself is out of this world awesome, probably the best I ever used. Materials are solid, packaging great - top notch product. ### 5/5 — 强烈建议加一个刷头更换倒计时 *2025-01-30* 刷头每次更换都得看心情，真的很浪费，有的才用了两三个星期想换就换了，有的用了三四个月感觉没用多长时间，到最后都炸毛了才换，没有一个固定的更换周期就很麻烦 ### 5/5 — Working great for me - Clean and Simple *2025-01-07* The toothbrush connected quickly and all of the changes made in the app reflect super fast in the brush. I’m not sure about the other low scoring reviews to be honest. I haven’t had issues like they’ve described. For reference you can use the toothbrush completely independent from the app (minus a couple features). I didn’t download it for a couple weeks and used the brush, no problem. ### 5/5 — Worked for me *2024-12-24* Day one and instantly paired with my phone and worked perfectly. If anything goes wrong, I’ll come back and update my review. ### 5/5 — App works great! *2024-11-25* I just got the toothbrush. So far I love it! ### 5/5 — Great App and Toothbrush *2024-10-06* These reviews are ridiculous. The app works great. I guess people are expecting Laifen to brush their teeth too. No buttons, someone else toothbrush! Whatever. Btw…. I don’t work for Laifen. --- *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 2026-08-30.*