# Metaura vs Laifen

The clearest difference is rating: Metaura at 3.4 against Laifen's 2.4. Metaura also leads on iOS requirement (12.0 vs 15.0). Laifen's advantage is monetization model (free vs ad-supported) and ratings volume (79 vs 12). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Metaura holds the better App Store score, 3.4 against 2.4. That said, the two scores are not equally well evidenced: Laifen has 79 ratings behind it against 12, so its average is the more settled of the two. Written reviews complicate that: 22% of Metaura's written reviews are positive against 28% of Laifen's, so the app with the better star average is not the one people write more warmly about.

Metaura ships an update every 2 weeks, Laifen every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Metaura | Laifen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (12 ratings)](https://appshunter.io/ios/app/metaura/id1612410353/reviews)** | [2.4 (79 ratings)](https://appshunter.io/ios/app/laifen/id6463205325/reviews) |
| Number of ratings | 12 | **79** |
| Positive reviews | 22.2% of reviews | **28.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Ad-supported | **Free** |
| Size | 161 MB | 160 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Lanhe Technology Co., Ltd.](https://appshunter.io/developer/1612410355) | [Shenzhen Shuye Innovation Technology Co., Ltd.](https://appshunter.io/developer/1704141324) |

## What reviewers say

### Metaura

[App page](https://appshunter.io/ios/app/metaura/id1612410353)

This smart wearable device monitors ambient temperature and automatically adjusts to your preferred comfort level. It intelligently detects if you're wearing it, turning on or off as needed. The companion app offers personalized control and the device supports over-the-air updates for future features.

**Highlights:** AI smart core for auto-mode, High-precision temperature sensor, Automatic on/off based on wear detection, Personalized temperature control via app, OTA upgrade system for future functionality

**Features:** Vision Pro support

**In-app purchases:** none


### Laifen

[App page](https://appshunter.io/ios/app/laifen/id6463205325)

Connect to your smart electric toothbrush to personalize your brushing experience. Set usage preferences and adjust device parameters to create custom modes for optimal oral health.

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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- ⚡ 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

**What reviewers complain about**

- 🐛 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)

**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

**Requested features**

- Apple Health integration and sync
- Battery percentage display
- Dark mode option
- Brushing timer in app
- Real-time brushing feedback and notifications


## Frequently asked questions

### Is Metaura free?

Metaura is free to download, with no in-app purchases.

### Is Laifen free?

Laifen is free to download, with no in-app purchases.

### Which has better reviews, Metaura or Laifen?

Metaura is rated higher. Metaura averages 3.4 out of 5 from 12 ratings, while Laifen averages 2.4 from 79 ratings.

### Do Metaura or Laifen have ads?

Neither Metaura nor Laifen shows ads.

### Which is updated more often, Metaura or Laifen?

Metaura ships an update every 2 weeks, and Laifen every 3 weeks. Most recently, Metaura was updated on October 24, 2026 and Laifen on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*