Not even chamorro
The language they are teaching is Tongan, not chamorro, so it's either some AI slop cash grab or a really dumb translation error
Response from developer
Thank you for calling this out, and I’m very sorry for the mistake. You were right: some legacy Tongan data and metadata from an earlier language template remained in the app. I have removed that fallback data, corrected the affected dictionary/phrase entries, updated the App Store metadata, and submitted version 1.4.3 for review. After the update is approved, Chamoru should focus on the Guam/Chamorro language experience. Thank you again for the direct feedback.
