# YunTeng vs SmartScanner

The clearest difference is rating: SmartScanner at 4.7 against YunTeng's 1.7. SmartScanner also leads on review sentiment (40% vs 9%) and ratings volume (1.2K vs 21). YunTeng's advantage is in-app purchases (none vs 10) and iOS requirement (7.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. SmartScanner sells 10 in-app purchases, starting at $0.99 per month. YunTeng asks for nothing beyond the download.

SmartScanner holds the better App Store score, 4.7 against 1.7. That said, the two scores are not equally well evidenced: SmartScanner has 1.2K ratings behind it against 21, so its average is the more settled of the two. Written reviews point the same way: 9% of YunTeng's written reviews are positive against 40% of SmartScanner's.

YunTeng ships an update every 4 months, SmartScanner every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | YunTeng | SmartScanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.7 (21 ratings)](https://appshunter.io/ios/app/yunteng/id1035123996/reviews) | **[4.7 (1.2K ratings)](https://appshunter.io/ios/app/smartscanner-ai-measure-and-count/id1663170838/reviews)** |
| Number of ratings | 21 | **1.2K** |
| Positive reviews | 9.1% of reviews | **40.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 9 MB | 90 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ShenZhen Wllink Technology Co., Ltd.](https://appshunter.io/developer/1065212219) | [Top Joy](https://appshunter.io/developer/1573223422) |

## What reviewers say

### YunTeng

[App page](https://appshunter.io/ios/app/yunteng/id1035123996)

This utility app helps prevent losing your camera device. It offers features like taking photos and videos, switching between front and rear cameras, and recording lost locations with warning sounds.

**Highlights:** Photo and video capture, Front/rear camera switching, Camera zoom functionality, Two-way anti-loss, Record lost location, Lost warning sound alert

**Features:** macOS Compatibility

**In-app purchases:** none


### SmartScanner

[App page](https://appshunter.io/ios/app/smartscanner-ai-measure-and-count/id1663170838)

This app transforms your phone into a versatile scanning tool. Measure heights, lengths, and areas with precision using augmented reality. It also features automatic item counting, plant identification, text extraction, and QR code scanning.

**Highlights:** Height measurement, Precision ruler, Auto item counting, Area calculator, Plant identification, Text extraction, QR/Barcode scanner

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SmartScanner Premium (monthly) | $0.99 | per month |
| 基础订阅 | $3.99 | per 7 days |
| SmartScanner Premium (weekly) | $4.99 | per 7 days |
| 高级订阅 | $6.99 | per 7 days |
| SmartScanner Premium (weekly) | $8.99 | per 7 days |
| 基础季度订阅 | $39.99 | per 3 months |
| SmartScanner Premium (Yearly) | $65.99 | per year |
| SmartScanner Premium (1 Month) | $14.99 | one-time |
| SmartScanner Premium (1 Year) | $34.99 | one-time |
| Lifetime Premium | $65.99 | one-time |

**What reviewers like**

- 🌟 Excellent features
- ✨ Precision measurements
- 👍 Easy to use

**What reviewers complain about**

- 💰 Not free as advertised
- 🚫 Inaccurate measurements
- 🤖 Unreliable plant/object recognition

**Reported bugs**

- Unexpected charges and billing issues
- Compatibility problems on certain devices

**Requested features**

- More measurement options
- Improved accuracy
- Reliable plant/object identification


## Frequently asked questions

### Is YunTeng free?

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

### Is SmartScanner free?

SmartScanner is free to download, with in-app purchases available.

### Which has better reviews, YunTeng or SmartScanner?

SmartScanner is rated higher. YunTeng averages 1.7 out of 5 from 21 ratings, while SmartScanner averages 4.7 from 1.2K ratings.

### Do YunTeng or SmartScanner have ads?

Neither YunTeng nor SmartScanner shows ads.

### Which is updated more often, YunTeng or SmartScanner?

YunTeng ships an update every 4 months, and SmartScanner every 2 months. Most recently, YunTeng was updated on November 1, 2026 and SmartScanner on November 3, 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.*