# blueMaster check vs Injection Molding Hub

The clearest difference is in-app purchases: blueMaster check at none against Injection Molding Hub's 2. blueMaster check also leads on ads (none vs shown). Injection Molding Hub's advantage is update cadence (every 10 days vs monthly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Injection Molding Hub sells 2 one-off in-app purchases. blueMaster check asks for nothing beyond the download.

blueMaster check ships an update monthly, Injection Molding Hub every 10 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | blueMaster check | Injection Molding Hub |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 10 days** |
| Size | 46 MB | 101 MB |
| Requires iOS | 15.5 | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ESYS Gesellschaft fuer Elektronische Systemtechnik . Hard- und Software mbH](https://appshunter.io/developer/917295043) | [Muhammad Shahzaib](https://appshunter.io/developer/1803329351) |

## What reviewers say

### blueMaster check

[App page](https://appshunter.io/ios/app/bluemaster-check/id6476186617)

**Features:** macOS Compatibility

**In-app purchases:** none


### Injection Molding Hub

[App page](https://appshunter.io/ios/app/injection-molding-hub/id6743525270)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Injection Moulding Pro | $8.99 | one-time |
| Pro Access | $34.99 | one-time |


## Frequently asked questions

### Is blueMaster check free?

blueMaster check is free to download, with no in-app purchases.

### Is Injection Molding Hub free?

Injection Molding Hub is free to download, with in-app purchases available.

### Do blueMaster check or Injection Molding Hub have ads?

Injection Molding Hub shows ads; blueMaster check does not.

### Which is updated more often, blueMaster check or Injection Molding Hub?

blueMaster check ships an update monthly, and Injection Molding Hub every 10 days. Most recently, blueMaster check was updated on October 25, 2026 and Injection Molding Hub on October 25, 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.*