There has been quite a few posts regarding Lemmy apps for iOS, and their installation process might not be straightforward since they’re PWA or beta. Here’s a list of apps mentioned and their links:

⭐ Released

Voyager (formerly wefwef) (📱PWA)
Memmy
Liftoff!
Mlem
Lemmios
Thunder
Avelon
Bean

🚧 TestFlight Beta

⚠ Note that apps below are potentially abandoned, please check each community for updates

Arctic
Olympus
Lemmotif
Echo (closed alpha)

NOTE: For more up-to-date list, see the iOS section on this post from [email protected]