# Otium Services Audit vs CPD For Construction Engineers

The clearest difference is in-app purchases: Otium Services Audit at none against CPD For Construction Engineers's 1. Otium Services Audit also leads on iOS requirement (15.6 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CPD For Construction Engineers sells 1 one-off in-app purchase. Otium Services Audit asks for nothing beyond the download.

Otium Services Audit ships an update every 4 weeks, CPD For Construction Engineers every 6 weeks. The most recent releases landed on October 29, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Otium Services Audit | CPD For Construction Engineers |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 6 weeks |
| Size | 25 MB | 6 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [SHABAAZ HUSSAIN](https://appshunter.io/developer/1104997056) | [ASHLEY DRURY](https://appshunter.io/developer/1880749523) |

## What reviewers say

### Otium Services Audit

[App page](https://appshunter.io/ios/app/otium-services-audit/id1536941417)

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

**In-app purchases:** none


### CPD For Construction Engineers

[App page](https://appshunter.io/ios/app/cpd-for-construction-engineers/id6762530598)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Me A Coffee - Tip | $2.99 | one-time |


## Frequently asked questions

### Is Otium Services Audit free?

Otium Services Audit is free to download, with no in-app purchases.

### Is CPD For Construction Engineers free?

CPD For Construction Engineers is free to download, with in-app purchases available.

### Do Otium Services Audit or CPD For Construction Engineers have ads?

Neither Otium Services Audit nor CPD For Construction Engineers shows ads.

### Which is updated more often, Otium Services Audit or CPD For Construction Engineers?

Otium Services Audit ships an update every 4 weeks, and CPD For Construction Engineers every 6 weeks. Most recently, Otium Services Audit was updated on October 29, 2026 and CPD For Construction Engineers on October 14, 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.*