# microsonic Ultrasonic Sensors vs EVOHD

The clearest difference is device support: microsonic Ultrasonic Sensors at 3 against EVOHD's 1. EVOHD's advantage is iOS requirement (7.0 vs 11.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 26, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | microsonic Ultrasonic Sensors | EVOHD |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | — | Free |
| Size | 50 MB | 49 MB |
| Requires iOS | 11.0 | **7.0** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [unternehmen online GmbH & Co. KG](https://appshunter.io/developer/430828920) | [Bydemes](https://appshunter.io/developer/522581434) |

## What reviewers say

### microsonic Ultrasonic Sensors

[App page](https://appshunter.io/ios/app/microsonic-ultrasonic-sensors/id513848823)

**Features:** macOS Compatibility

**In-app purchases:** none


### EVOHD

[App page](https://appshunter.io/ios/app/evohd/id522581431)

This iPad application provides remote surveillance capabilities for compatible DVR systems. It allows users to monitor live video feeds, review recorded footage, and receive push alerts for security events. Advanced features include gesture controls and window sliding for enhanced usability.

**Highlights:** Push Alarm notifications, Video Playback, Task wheel functionality, Finger Gesture controls, Windows Slide feature, Remote DVR monitoring

**In-app purchases:** none


## Frequently asked questions

### Is microsonic Ultrasonic Sensors free?

microsonic Ultrasonic Sensors is free to download, with no in-app purchases.

### Is EVOHD free?

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

### Do microsonic Ultrasonic Sensors or EVOHD have ads?

Neither microsonic Ultrasonic Sensors nor EVOHD shows ads.

### Which is updated more often, microsonic Ultrasonic Sensors or EVOHD?

microsonic Ultrasonic Sensors ships an update every 4 months, and EVOHD every 4 months. Most recently, microsonic Ultrasonic Sensors was updated on October 26, 2026 and EVOHD on October 23, 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.*