# SAIT Shaft Alignment AR vs 433A MillwrightPrepApp

The clearest difference is in-app purchases: SAIT Shaft Alignment AR at none against 433A MillwrightPrepApp's 1. SAIT Shaft Alignment AR also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.6). 433A MillwrightPrepApp's advantage is update cadence (weekly vs every 19 months). On price and ads there is nothing between them.

Both are free to download. 433A MillwrightPrepApp sells 1 one-off in-app purchase. SAIT Shaft Alignment AR asks for nothing beyond the download.

SAIT Shaft Alignment AR ships an update every 19 months, 433A MillwrightPrepApp weekly. The most recent releases landed on October 5, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | SAIT Shaft Alignment AR | 433A MillwrightPrepApp |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 19 months | **Weekly** |
| Size | 115 MB | 36 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ICOM Productions Inc.](https://appshunter.io/developer/1352575274) | [DMYTRO STELIHA](https://appshunter.io/developer/1896541936) |

## What reviewers say

### SAIT Shaft Alignment AR

[App page](https://appshunter.io/ios/app/sait-shaft-alignment-ar/id1520448478)

**In-app purchases:** none


### 433A MillwrightPrepApp

[App page](https://appshunter.io/ios/app/433a-millwrightprepapp/id6768121136)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $14.99 | one-time |


## Frequently asked questions

### Is SAIT Shaft Alignment AR free?

SAIT Shaft Alignment AR is free to download, with no in-app purchases.

### Is 433A MillwrightPrepApp free?

433A MillwrightPrepApp is free to download, with in-app purchases available.

### Do SAIT Shaft Alignment AR or 433A MillwrightPrepApp have ads?

Neither SAIT Shaft Alignment AR nor 433A MillwrightPrepApp shows ads.

### Which is updated more often, SAIT Shaft Alignment AR or 433A MillwrightPrepApp?

SAIT Shaft Alignment AR ships an update every 19 months, and 433A MillwrightPrepApp weekly. Most recently, SAIT Shaft Alignment AR was updated on October 5, 2026 and 433A MillwrightPrepApp on October 4, 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.*