I installed nextcloud at first because I was looking for a basic forms app. Not something very complex, just needed something simple. The best I found was Nextcloud Forms. So I ended up driving a nail not with a hammer, but a battering ram. But I knew that I might find other uses later.

Since then, I've discovered and used many apps.

• Files lets me easily share documents with others with a link.
• I started storing recipes in Cookbook, instead of links in a file.
• I started storing bookmarks across all my devices in Bookmarks and floccus.
• I got into podcasts by subscribing to RSS feeds with News.
• I started doing my todo lists digitally with Tasks. This one in particular has very much changed my daytoday along with the android app tasks from tasks.org.

I use Calendar, contacts, notes and cospend on a daily basis.

A relatively new addition for me is the Memories app. It does some object recognition on photos and makes it easier to search through your own photos. I think Immich might be better but memories is integrated in nextcloud.

When Nextcloud finally shipped a credible wiki (the somewhat absurdly-named "Collectives" app), this was finally enough to get me to install it for myself and my business partner. So, currently, Collectives plus the Sync feature ... other apps may draw me in later.

I use a lot of the apps. Most of them are "just good enough" to keep from installing alternate, standalone versions. However, having them all integrated into NC is a big plus over maintaining separate applications.

• Calendar app and sync it with my phone with DavX5
• Tasks -> DavX5 -> OpenTasks on my phone
• Deck, which is a Kanban/Trello type of task management.
• SnappyMail app to access my email
• The Nextcloud app on my phone handles automatically uploading my photos and videos.
• The Riotchat app keeps me connected on Matrix
• Passman to manage my passwords (also has a dedicated Android app)
• Music player to play my media (works great as a Chrome app)
• Cookbook app for my recipes (it is also good at scraping/importing from recipe sites if you paste the URL in)

I use news, gPodder sync app, TimeManager and Deck all with the corresponding android apps (AntennaPod for Podcasts). Also nextcloud office (collabora), The music player and obviously files, calendar, contacts. I'm sure I forgot some :)

Notes Bookmarks CookBook Calendar Tasks Deck

and obviously Files the most

• calendar (synced with ios and outlook)
• tasks (synced with ios and outlook so I can ask Siri to add a reminder and it appears automagically in my PC Outlook as a task)
• notes (with the notes ios app)
• bookmarks (synced with Floccus)
• phonetrack (using owntracks ios app)
• contacts (synced with ios and outlook)

Calendar and contacts for syncing.
I'm also a huge fan of Nextcloud Office with Onlyoffice, legitimately a better experience than Microsoft Online for editing documents in the browser and less syncing issues when collaborating with others.