# POPA Convention vs DCTU

The clearest difference is iOS requirement: DCTU at 12.4 against POPA Convention's 15.1. On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for POPA Convention against 5.0 for DCTU. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

POPA Convention ships an update every 4 months, DCTU every 5 months. The most recent releases landed on June 9, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | POPA Convention | DCTU |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/popa-convention/id1576888450/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/dctu/id1590757019/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 5 months |
| Monetization | Free | Free |
| Size | 49 MB | 55 MB |
| Requires iOS | 15.1 | **12.4** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Pilatus Owners & Pilots Association, Inc.](https://appshunter.io/developer/1576888452) | [Pratt & Whitney Canada Cie](https://appshunter.io/developer/1468490552) |

## What reviewers say

### POPA Convention

[App page](https://appshunter.io/ios/app/popa-convention/id1576888450)

Access session details, speaker bios, and exhibitor information for an annual operations and safety convention. Stay informed about event schedules and materials.

**Highlights:** Session information access, Speaker biographies, Exhibitor details, Sponsor information, Event materials

**In-app purchases:** none


### DCTU

[App page](https://appshunter.io/ios/app/dctu/id1590757019)

This application facilitates communication with specific engine hardware for maintenance tasks. It allows users to view and modify engine parameters, retrieve diagnostic data, and manage engine module information. The tool supports real-time data collection and offline data entry.

**Highlights:** View/Change EEC and DCTU parameters, Retrieve Events, Exceedances & Faults (EEF), Monitor DCTU health status, Perform live data diagnostics, Scan barcodes for module changes, Generate offline LRU/Engine Module data files

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is POPA Convention free?

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

### Is DCTU free?

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

### Which has better reviews, POPA Convention or DCTU?

POPA Convention and DCTU are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do POPA Convention or DCTU have ads?

Neither POPA Convention nor DCTU shows ads.

### Which is updated more often, POPA Convention or DCTU?

POPA Convention ships an update every 4 months, and DCTU every 5 months. Most recently, POPA Convention was updated on June 9, 2026 and DCTU on September 10, 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.*