# iMSO vs Engineering Converter

The clearest difference is ads: iMSO at none against Engineering Converter's shown. iMSO also leads on update cadence (every 3 months vs every 42 months) and iOS requirement (11.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

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

iMSO ships an update every 3 months, Engineering Converter every 42 months. The most recent releases landed on September 19, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | iMSO | Engineering Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (6 ratings)](https://appshunter.io/ios/app/imso/id411757356/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 42 months |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 6 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oscium LLC](https://appshunter.io/developer/411757369) | [Brook Wallace](https://appshunter.io/developer/1234097174) |

## What reviewers say

### iMSO

[App page](https://appshunter.io/ios/app/imso/id411757356)

Transform your mobile device into a powerful mixed-signal oscilloscope. Analyze analog and digital signals with intuitive controls and advanced measurement features. A demo mode is available for free, with hardware required for full functionality.

**Highlights:** Mixed-signal oscilloscope, Analog and digital signal analysis, Simulated wave display, Cursors with measurements, Direct signal measurements, Analog and digital triggering

**Features:** macOS Compatibility

**In-app purchases:** none


### Engineering Converter

[App page](https://appshunter.io/ios/app/engineering-converter/id1234097175)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iMSO free?

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

### Is Engineering Converter free?

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

### Do iMSO or Engineering Converter have ads?

Engineering Converter shows ads; iMSO does not.

### Which is updated more often, iMSO or Engineering Converter?

iMSO ships an update every 3 months, and Engineering Converter every 42 months. Most recently, iMSO was updated on September 19, 2026 and Engineering Converter on September 12, 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.*