# Centrik vs Acron B737NG ETHOS

The clearest difference is rating: Centrik at 5.0 against Acron B737NG ETHOS's 3.0. Centrik also leads on update cadence (monthly vs every 6 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Centrik holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Centrik ships an update monthly, Acron B737NG ETHOS every 6 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Centrik | Acron B737NG ETHOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/centrik/id858113364/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/acron-b737ng-ethos/id1583033489/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 months |
| Monetization | Free | Free |
| Size | 91 MB | 18 MB |
| Requires iOS | 16.4 | **15.6** |
| Devices | **iPhone, iPad** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [TrustFlight Limited](https://appshunter.io/developer/1330978495) | [Aerosim](https://appshunter.io/developer/491766443) |

## What reviewers say

### Centrik

[App page](https://appshunter.io/ios/app/centrik/id858113364)

This app serves as an Electronic Flight Bag, enabling users to access and manage flight documents and forms offline. It synchronizes data when an internet connection is available, providing a seamless interface for flight operations.

**Highlights:** Offline document access, Offline form completion, Data synchronization, Seamless interface, Electronic Flight Bag functionality

**Features:** Vision Pro support

**In-app purchases:** none


### Acron B737NG ETHOS

[App page](https://appshunter.io/ios/app/acron-b737ng-ethos/id1583033489)

This application serves as a Flight Management System Trainer for aviation professionals. It enables users to run courseware or freeplay simulations, requiring an account from an affiliated Acron ETHOS training partner.

**Highlights:** Flight Management System Trainer, Courseware simulation, Freeplay simulation, Aviation industry focus, Requires user account

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

**In-app purchases:** none


## Frequently asked questions

### Is Centrik free?

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

### Is Acron B737NG ETHOS free?

Acron B737NG ETHOS is free to download, with no in-app purchases.

### Which has better reviews, Centrik or Acron B737NG ETHOS?

Centrik is rated higher. Centrik averages 5.0 out of 5 from 1 ratings, while Acron B737NG ETHOS averages 3.0 from 2 ratings.

### Do Centrik or Acron B737NG ETHOS have ads?

Neither Centrik nor Acron B737NG ETHOS shows ads.

### Which is updated more often, Centrik or Acron B737NG ETHOS?

Centrik ships an update monthly, and Acron B737NG ETHOS every 6 months. Most recently, Centrik was updated on October 29, 2026 and Acron B737NG ETHOS on October 24, 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.*