# Laifen

> Smart electric toothbrush companion app for personalized oral care. (iPhone/iPad app by Shenzhen Shuye Innovation Technology Co., Ltd..)

- Source: https://appshunter.io/ios/app/laifen/id6463205325 (this page in markdown: same URL + `.md`)
- Developer: [Shenzhen Shuye Innovation Technology Co., Ltd.](https://appshunter.io/developer/1704141324)
- Category: Lifestyle
- Price: Free
- Rating: 2.40/5 from 74 App Store ratings · 106 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 158 MB
- Languages: American English, Arabic, Dutch, French (France), German (Germany), Italian, Japanese, Korean, Malagasy, Malay and 10 more
- Released: 2023-10-09
- Data updated: 2026-09-07
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/laifen/id6463205325/reviews.md

## What is Laifen?

Laifen App is the official application of Laifen Technology. Through this software, you can connect to the Laifen electric toothbrush, set personal usage preferences, and adjust hardware device parameters. By customizing parameters, you can preset a toothbrush mode specific to you, assisting you in effortlessly achieving optimal oral health.

## Key features

- Connect to Laifen electric toothbrush
- Set personal usage preferences
- Adjust hardware device parameters
- Create custom toothbrush modes
- Achieve optimal oral health

## 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

## Recent user reviews (10 of 106)

All indexed reviews: https://appshunter.io/ios/app/laifen/id6463205325/reviews.md

### 1/5 — This can be improved…

*2026-08-26, version 3.4.3*

1- The electrostatic button is very difficult to use. It does not sense my finger to start, stop or go on avion mode.

2- 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.

3- 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…

Update: received a new device: same issues:
1- The electrostatic button is unresponsive 99% of the time. I have to start it from the app (when it works too) or simply use it as a very expensive regular manual toothbrush from Walmart
2- The App is a total deception: the features that should work don’t, and the ones you don’t necessarily need…do work!!’🥴
Example: there is a pending firmware, which is failing to update the device.

Total Experience: extremely painful for the pocket. And the emotions.

Not recommended.

### 1/5 — Toothbrush is Great… App is Horrible

*2026-08-25, version 3.4.3*

Purchased toothbrush and successfully connected. Tried to update firmware and it bricks my toothbrush. Good thing I saw a restore default settings button which worked. The app works great when it will actually connect, it appears they have login authentication issues. I can’t get passed the login screen without erroring out. I’ve tried reinstalling multiple times. Been down for 2 days now and I’ve owned the toothbrush for 4

### 1/5 — Login impossible

*2026-08-25, version 3.4.3*

Unable to login via my method. App has a URL error.

### 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!

### 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.

### 5/5 — Great action for cleaning teeth / app is fine

*2026-05-30, version 3.3.2*

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.

### 3/5 — App needs priority

*2026-05-27, version 3.3.2*

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

### 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.

## Frequently asked questions about Laifen

### What does the Laifen App do?

The Laifen App is the official companion application for Laifen electric toothbrushes. It allows you to connect to your device, set personal usage preferences, and adjust hardware parameters. This enables you to create customized brushing modes tailored to your specific needs for improved oral health.

### How can I customize my brushing experience with this app?

You can customize your brushing experience by connecting the app to your Laifen electric toothbrush. Within the app, you can adjust various hardware device parameters and set personal usage preferences. This allows you to preset unique toothbrush modes that assist you in achieving optimal oral health.

### Is the Laifen App free to use?

Yes, the Laifen App is free to download and use. It does not have any in-app purchases or advertisements, meaning you can enjoy all its features without additional cost.

### What is the main benefit of using the Laifen App?

The main benefit of using the Laifen App is the ability to personalize your electric toothbrush experience. By customizing settings and creating specific modes, you can ensure your brushing routine is optimized for your individual oral health needs, leading to better results.

## Version history (last 5 releases)

### 3.4.3 — 2026-08-04

Improved the user experience.

### 3.4.0 — 2026-07-29

Improved the user experience.

### 3.3.4 — 2026-07-03

Improved the user experience.

### 3.3.3 — 2026-06-10

Improved the user experience.

### 3.3.2 — 2026-05-15

Improved the user experience.

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## More apps by Shenzhen Shuye Innovation Technology Co., Ltd.

- [芬芬](https://appshunter.io/ios/app/id6739992774)

All apps by Shenzhen Shuye Innovation Technology Co., Ltd.: https://appshunter.io/developer/1704141324

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*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 2026-09-07.*