Comparison

DCTU vs Acron A330 ETHOS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DCTU

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
Read full description

The Pratt and Whitney Digital Engine Services (DES) team developed the Data Collection and Transmission Unit (DCTU) application to communicate with the DCTU hardware on the PT6 E-Series™ engine using wireless connection to perform maintenance actions such as: – View/Change electronic engine control (EEC) and DCTU parameters – Retrieve Events, Exceedances & Faults (EEF) – Retrieve EEC diagnostics data via DCTU – Monitor health status on DCTU – Perform live data diagnostics on DCTU and EEC – Perform test transmission from DCTU to the ground station – Change engine modules by barcode scanning (or) through Manual entry – Change Line Replacement Units (LRUs) by barcode scanning (or) through Manual entry – Supports to do a BOV(Bleed of Valve) closing point check along with the Bluetooth pressure transducer – Allows user to generate locally stored file to enter data related to LRUs and Engine Modules while not connected to DCTU The DCTU hardware provides the capability for the operators to collect data in real-time, record the data to non-volatile memory, make connections to ground support equipment, either wired or wirelessly, and offload data to the ground support equipment.

About

Acron A330 ETHOS

Features
Read full description

Acron A330 ETHOS app allows users to run courseware or freeplay Flight Management System Trainer (FMST). It is designed for the aviation industry. This app requires a user account given to end-users currently affiliated with Acron ETHOS contract training partner. Please contact your airline training department or flight school for confirmation and download instructions.

Screenshots

DCTU4 screens

Verdict

The call

The clearest difference is device support: DCTU at 3 against Acron A330 ETHOS's 1. DCTU also leads on iOS requirement (12.4 vs 15.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

DCTU ships an update every 5 months, Acron A330 ETHOS every 3 months. The most recent releases landed on October 15, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 7 level
DCTU versus Acron A330 ETHOS: the parameters behind the verdict, then further details
ParameterDCTUAcron A330 ETHOS
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 5 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS12.4 — better15.6
Further details — not scored
Size55 MB26 MB
Age rating4+4+
DeveloperPratt & Whitney Canada CieAerosim

In-app purchases

None

DCTU

No in-app purchases

None

Acron A330 ETHOS

No in-app purchases

Questions

Is DCTU free?
DCTU is free to download, with no in-app purchases.
Is Acron A330 ETHOS free?
Acron A330 ETHOS is free to download, with no in-app purchases.
Do DCTU or Acron A330 ETHOS have ads?
Neither DCTU nor Acron A330 ETHOS shows ads.
Which is updated more often, DCTU or Acron A330 ETHOS?
DCTU ships an update every 5 months, and Acron A330 ETHOS every 3 months. Most recently, DCTU was updated on October 15, 2026 and Acron A330 ETHOS on October 25, 2026.

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