# iMSO vs ArchFlowy

The clearest difference is in-app purchases: iMSO at none against ArchFlowy's 1. iMSO also leads on iOS requirement (11.0 vs 18.2). ArchFlowy's advantage is update cadence (every 2 weeks vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. ArchFlowy sells 1 in-app purchase, starting at $1.99 per month. iMSO asks for nothing beyond the download.

iMSO ships an update every 3 months, ArchFlowy every 2 weeks. The most recent releases landed on September 19, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | iMSO | ArchFlowy |
| --- | --- | --- |
| 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** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 3 MB |
| Requires iOS | **11.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Oscium LLC](https://appshunter.io/developer/411757369) | [Timmy Nguyen](https://appshunter.io/developer/1725059991) |

## 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


### ArchFlowy

[App page](https://appshunter.io/ios/app/archflowy/id6757314902)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |


## Frequently asked questions

### Is iMSO free?

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

### Is ArchFlowy free?

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

### Do iMSO or ArchFlowy have ads?

Neither iMSO nor ArchFlowy shows ads.

### Which is updated more often, iMSO or ArchFlowy?

iMSO ships an update every 3 months, and ArchFlowy every 2 weeks. Most recently, iMSO was updated on September 19, 2026 and ArchFlowy on September 29, 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.*