App Store
Version 15.26.4 · 2026-08-10
Fixes to latest iOS issues.
Too little checked to say Store information only. We haven’t analysed this app or read its reviews yet.
Not yet tested.
The store currently lists version 15.26.4, updated 2026-08-10.





Store screenshots supplied by the developer.
Acron B777 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.
From the developer’s store description.
For developers and the curious
The evidence, sources, measurements and versions behind every label above.
No review analysis published for this app.
“Not assessed” means we could not measure it. It is never a zero and never a pass.
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.
Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured
Not yet tested. No analysis has been run for this app, so there is no version or date to report.
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
Fixes to latest iOS issues.
acron-b777-ethosWhat the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
No itemized purchase list is available for this listing.
Not yet tested. No analysis has been published for this app, so there is no method to describe for it yet. A missing label is not a clean bill of health: it means nothing has been read, not that nothing is wrong.
Write to [email protected], or use the form. Name the finding, the app version and the evidence that needs correcting. Factual corrections are free and never depend on buying anything.