# UDU Ear vs SL Visual

The clearest difference is rating: SL Visual at 2.5 against UDU Ear's 1.8. UDU Ear's advantage is review sentiment (33% vs 14%) and iOS requirement (9.0 vs 13.0). On price, ratings volume, 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.

SL Visual holds the better App Store score, 2.5 against 1.8. Both are backed by a comparable volume of ratings — 5 and 11 respectively. Written reviews complicate that: 33% of UDU Ear's written reviews are positive against 14% of SL Visual's, so the app with the better star average is not the one people write more warmly about.

UDU Ear ships an update fortnightly, SL Visual every 4 weeks. The most recent releases landed on October 8, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | UDU Ear | SL Visual |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (5 ratings)](https://appshunter.io/ios/app/udu-ear/id1571470227/reviews) | **[2.5 (11 ratings)](https://appshunter.io/ios/app/sl-visual/id6737253954/reviews)** |
| Number of ratings | 5 | **11** |
| Positive reviews | **33.3% of reviews** | 13.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 weeks |
| Monetization | Free | Free |
| Size | 62 MB | 9 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Dianzhui Culture Technology Co., Ltd.](https://appshunter.io/developer/1529082388) | [Shenzhen Shenglong Technology Co., Ltd](https://appshunter.io/developer/1748314415) |

## What reviewers say

### UDU Ear

[App page](https://appshunter.io/ios/app/udu-ear/id1571470227)

This tool connects to an otoscope device via Wi-Fi to display a real-time view on your mobile device. Capture photos and videos of the lens's view for easy comparison and record-keeping across various industries.

**Highlights:** Real-time otoscope view, Wi-Fi connectivity to device, Photo capture, Video recording, Saved image comparison

**Features:** macOS Compatibility

**In-app purchases:** none


### SL Visual

[App page](https://appshunter.io/ios/app/sl-visual/id6737253954)

This utility app simplifies device pairing with clear instructions and an intuitive interface. Once connected, it automatically switches to a user-friendly display with text-described icons for easy interaction.

**Highlights:** Easy device pairing, Clear connection instructions, Automatic UI switching, Intuitive icon design, Text descriptions for icons

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is UDU Ear free?

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

### Is SL Visual free?

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

### Which has better reviews, UDU Ear or SL Visual?

SL Visual is rated higher. UDU Ear averages 1.8 out of 5 from 5 ratings, while SL Visual averages 2.5 from 11 ratings.

### Do UDU Ear or SL Visual have ads?

Neither UDU Ear nor SL Visual shows ads.

### Which is updated more often, UDU Ear or SL Visual?

UDU Ear ships an update fortnightly, and SL Visual every 4 weeks. Most recently, UDU Ear was updated on October 8, 2026 and SL Visual on October 17, 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.*