# IAAPP.NET vs Machine Train Alignment

The clearest difference is update cadence: IAAPP.NET at every 6 days against Machine Train Alignment's every 10 months. On price, ads, 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.

IAAPP.NET ships an update every 6 days, Machine Train Alignment every 10 months. The most recent releases landed on September 14, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | IAAPP.NET | Machine Train Alignment |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/machine-train-alignment/id6742226565/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 10 months |
| Monetization | — | Free |
| Size | 25 MB | 124 MB |
| Requires iOS | **12.4** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ICMED S.R.L.](https://appshunter.io/developer/1708406747) | [ACOEM Group](https://appshunter.io/developer/1495816959) |

## What reviewers say

### IAAPP.NET

[App page](https://appshunter.io/ios/app/iaappnet/id6467221814)

**Features:** macOS Compatibility

**In-app purchases:** none


### Machine Train Alignment

[App page](https://appshunter.io/ios/app/machine-train-alignment/id6742226565)

This app guides users through machine train shaft alignment using Bluetooth-connected sensors. It offers an adaptive interface and a VertiZontal™ feature for simultaneous vertical and horizontal adjustments. Generate instant PDF reports for on-site documentation.

**Highlights:** Bluetooth connectivity, Adaptive user interface, VertiZontal™ adjustment, Instant PDF reporting, Guided measurement process

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IAAPP.NET free?

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

### Is Machine Train Alignment free?

Machine Train Alignment is free to download, with no in-app purchases.

### Do IAAPP.NET or Machine Train Alignment have ads?

Neither IAAPP.NET nor Machine Train Alignment shows ads.

### Which is updated more often, IAAPP.NET or Machine Train Alignment?

IAAPP.NET ships an update every 6 days, and Machine Train Alignment every 10 months. Most recently, IAAPP.NET was updated on September 14, 2026 and Machine Train Alignment on September 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.*