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Eternity vs Interstellar: catalog facts
Eternity	Interstellar
Best for: Android users moving from Infinity for Reddit to Lemmy	Best for: Lemmy, Mbin and PieFed users who want one app for all three
Free Free and open source, available on F-Droid and Google Play.	Free Free and open source.
Android	Windows, Linux, Android
Familiar interface for former Infinity for Reddit users Available on F-Droid and Google Play All 3 strengths for Eternity Familiar interface for former Infinity for Reddit users Available on F-Droid and Google Play Open source on Codeberg	Works with Mbin, Lemmy and PieFed in one app Cross-platform from a single Flutter codebase All 3 strengths for Interstellar Works with Mbin, Lemmy and PieFed in one app Cross-platform from a single Flutter codebase Open source with a published privacy policy
No commits since August 2024 Android only All 3 limitations for Eternity No commits since August 2024 Android only Lemmy only	Smaller project with a modest contributor base Features depend on what each server type supports
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Sources for Eternity codeberg.org/Bazsalanszky/Eternity Catalog checked September 24, 2026	Official website Full listing and sources Sources for Interstellar github.com/interstellar-app/interstellar play.google.com/store/apps/details apt.izzysoft.de/fdroid/index/apk/one.jwr.interstellar Catalog checked September 24, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.