# OctanePM vs Construction Master Pro

The clearest difference is in-app purchases: OctanePM at none against Construction Master Pro's 2. OctanePM also leads on update cadence (every 5 days vs every 3 weeks). Construction Master Pro's advantage is iOS requirement (13.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. Construction Master Pro sells 2 in-app purchases, starting at $199.00 per month. OctanePM asks for nothing beyond the download.

OctanePM ships an update every 5 days, Construction Master Pro every 3 weeks. The most recent releases landed on October 11, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | OctanePM | Construction Master Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Size | 164 MB | 46 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Audio-Forms, Inc.](https://appshunter.io/developer/1220274772) | [Hashme Media Inc](https://appshunter.io/developer/1702122783) |

## What reviewers say

### OctanePM

[App page](https://appshunter.io/ios/app/octanepm/id1618772155)

**In-app purchases:** none


### Construction Master Pro

[App page](https://appshunter.io/ios/app/construction-master-pro/id6460690202)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO PLAN | $199.00 | per month |
| ENTERPRISE PLAN | $349.00 | per month |


## Frequently asked questions

### Is OctanePM free?

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

### Is Construction Master Pro free?

Construction Master Pro is free to download, with in-app purchases available.

### Do OctanePM or Construction Master Pro have ads?

Neither OctanePM nor Construction Master Pro shows ads.

### Which is updated more often, OctanePM or Construction Master Pro?

OctanePM ships an update every 5 days, and Construction Master Pro every 3 weeks. Most recently, OctanePM was updated on October 11, 2026 and Construction Master Pro on October 5, 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.*