# M2M Dialog vs Spectrum Analyzer

The clearest difference is in-app purchases: M2M Dialog at none against Spectrum Analyzer's 1. M2M Dialog also leads on iOS requirement (12.0 vs 17.6). Spectrum Analyzer's advantage is update cadence (daily vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. Spectrum Analyzer sells 1 one-off in-app purchase. M2M Dialog asks for nothing beyond the download.

M2M Dialog ships an update every 5 months, Spectrum Analyzer daily. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | M2M Dialog | Spectrum Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Daily** |
| Monetization | Free | — |
| Size | 34 MB | 1 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ali Group Srl](https://appshunter.io/developer/1755339340) | [Josef Dave Llorente](https://appshunter.io/developer/6803405669) |

## What reviewers say

### M2M Dialog

[App page](https://appshunter.io/ios/app/m2m-dialog/id1494300297)

This utility app facilitates e-maintenance solutions by connecting users to a Dialog account. It serves as an integrated platform for managing maintenance tasks and information.

**Highlights:** E-maintenance solution, Integrated platform, Dialog account required, Utilities category app

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

**In-app purchases:** none


### Spectrum Analyzer

[App page](https://appshunter.io/ios/app/spectrum-analyzer-audio-fft/id6803405667)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spectrum Analyzer - Audio FFT | $1.99 | one-time |


## Frequently asked questions

### Is M2M Dialog free?

M2M Dialog is free to download, with no in-app purchases.

### Is Spectrum Analyzer free?

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

### Do M2M Dialog or Spectrum Analyzer have ads?

Neither M2M Dialog nor Spectrum Analyzer shows ads.

### Which is updated more often, M2M Dialog or Spectrum Analyzer?

M2M Dialog ships an update every 5 months, and Spectrum Analyzer daily. Most recently, M2M Dialog was updated on October 14, 2026 and Spectrum Analyzer on October 15, 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.*