Since the reason so many people moved because of the third-party app changes, wouldn’t it make sense for a Lemmy app to be made. Obviously not yet since the developers are already under a lot of stress with the amount of new users Lemmy is gaining.
Still, it would make me 100% swap full-time to Lemmy. Keep up the good work though.
Since others have mentioned jerboa and Mlem already, you can also install your instances webpage as a PWA. Navigate to the page in Firefox or chrome on mobile (idk about safari) and click the install option within the browser settings. Then click to add to homescreen.