# SKF Machine train alignment vs Glasses 911

The clearest difference is in-app purchases: SKF Machine train alignment at none against Glasses 911's 1. SKF Machine train alignment also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.6). On price and ads there is nothing between them.

Both are free to download. Glasses 911 sells 1 in-app purchase, starting at $1.99 per month. SKF Machine train alignment asks for nothing beyond the download.

## The numbers

| Metric | SKF Machine train alignment | Glasses 911 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 69 MB | 3 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SKF](https://appshunter.io/developer/472922971) | [MIHAI DUMITRESCU](https://appshunter.io/developer/1792529377) |

## What reviewers say

### SKF Machine train alignment

[App page](https://appshunter.io/ios/app/skf-machine-train-alignment/id1149906003)

**Features:** macOS Compatibility

**In-app purchases:** none


### Glasses 911

[App page](https://appshunter.io/ios/app/glasses-911/id6741133059)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Glasses 911 Premium | $1.99 | per month |


## Frequently asked questions

### Is SKF Machine train alignment free?

SKF Machine train alignment is free to download, with no in-app purchases.

### Is Glasses 911 free?

Glasses 911 is free to download, with in-app purchases available.

### Do SKF Machine train alignment or Glasses 911 have ads?

Neither SKF Machine train alignment nor Glasses 911 shows ads.

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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.*