# Machine Train Alignment vs HydroView by Gilkes

The clearest difference is update cadence: HydroView by Gilkes at weekly against Machine Train Alignment's every 10 months. Machine Train Alignment's advantage is iOS requirement (13.0 vs 17.0). 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.

Machine Train Alignment ships an update every 10 months, HydroView by Gilkes weekly. The most recent releases landed on September 17, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Machine Train Alignment | HydroView by Gilkes |
| --- | --- | --- |
| 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 10 months | **Weekly** |
| Monetization | Free | — |
| Size | 124 MB | 63 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ACOEM Group](https://appshunter.io/developer/1495816959) | [Gilbert Gilkes and Gordon Ltd](https://appshunter.io/developer/922500434) |

## What reviewers say

### 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


### HydroView by Gilkes

[App page](https://appshunter.io/ios/app/hydroview-by-gilkes/id6747967120)

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

**In-app purchases:** none


## Frequently asked questions

### Is Machine Train Alignment free?

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

### Is HydroView by Gilkes free?

HydroView by Gilkes is free to download, with no in-app purchases.

### Do Machine Train Alignment or HydroView by Gilkes have ads?

Neither Machine Train Alignment nor HydroView by Gilkes shows ads.

### Which is updated more often, Machine Train Alignment or HydroView by Gilkes?

Machine Train Alignment ships an update every 10 months, and HydroView by Gilkes weekly. Most recently, Machine Train Alignment was updated on September 17, 2026 and HydroView by Gilkes 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.*