What users hate. Clustered.

1- and 2-star reviews grouped into themes with verbatim examples. Each cluster is a wedge a competitor could exploit.

5 reviews·4 themes

Offline functionality not working despite claims
Users report the app fails to function offline, contradicting expectations or marketing, with reproducible steps involving airplane mode and model downloads.
1
reviews
- “🚨 False advertising: does not work offline — This app does not work offline. I have switched to Apollo for running offline LLMs. That one actually does work.”
Limited model availability on mobile devices
Users are frustrated by restricted access to larger or custom models due to the app's curated list of pre-packaged models, especially on capable hardware like the M2 iPad.
1
reviews
- “For less powerful phones — My M2 iPad can handle bigger models, but Fullmoon’s in-app list is constrained to models they have packaged for mobile.”
Inaccurate device compatibility claims
App incorrectly lists support for certain devices (e.g., iPad Air 4th Gen, iPhone 11) that users find incompatible, leading to frustration and distrust.
2
reviews
- “Check your app, jerks — Does not work on iPad Air 4th Gen, even though this listing says it does. That pisses me off.”
- “compatibility — The app claims metal 3 is needed to run, however, iPhone 11 with iOS 18 installed is not supported, although A13 supports metal 3”
Application crashes on prompt input
The app crashes immediately after entering a prompt, rendering it unusable despite successful model loading.
1
reviews
- “App is crashing — Once I write a prompt the whole application crashes.”

First load takes ~60–120s. Cached after.