# MST Gold vs Raj Engineering

The clearest difference is update cadence: Raj Engineering at every 9 days against MST Gold's every 11 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.

MST Gold ships an update every 11 months, Raj Engineering every 9 days. The most recent releases landed on September 10, 2026 and August 15, 2026 respectively.

## The numbers

| Metric | MST Gold | Raj Engineering |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 9 days** |
| Size | 53 MB | 21 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [NILESH KUMAR SONI](https://appshunter.io/developer/1637620616) | [Hemant Kulharia](https://appshunter.io/developer/1781170069) |

## What reviewers say

### MST Gold

[App page](https://appshunter.io/ios/app/mst-gold/id6448208355)

**Features:** macOS Compatibility

**In-app purchases:** none


### Raj Engineering

[App page](https://appshunter.io/ios/app/raj-engineering/id6738570515)

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

**In-app purchases:** none


## Frequently asked questions

### Is MST Gold free?

MST Gold is free to download, with no in-app purchases.

### Is Raj Engineering free?

Raj Engineering is free to download, with no in-app purchases.

### Do MST Gold or Raj Engineering have ads?

Neither MST Gold nor Raj Engineering shows ads.

### Which is updated more often, MST Gold or Raj Engineering?

MST Gold ships an update every 11 months, and Raj Engineering every 9 days. Most recently, MST Gold was updated on September 10, 2026 and Raj Engineering on August 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.*