I searched quite a bit and wasn't able to find a conclusive list of available third party apps that can sync with Nextcloud. So I thought I'd start one for folks who might be interested. Feel free to chime in with any you've used!
Notes
macOS:
- Nextcloud Notes Client - looks exactly like Apple Notes, but syncs with NC and supports Markdown.
Linux:
- Iotas - minimalist markdown notes app in the same vein as IA Writer.
Android:
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Quillpad - Google Keep clone that supports Markdown. Fork of Quillnotes. There are some quirks with this one. For example, if you create a task list from NC WebUI version of Notes, the checkboxes will show up in Quillnotes, but you cannot check them off as complete. Has a promising roadmap.
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Carnet - another Google Keep clone. This one has an app in the NC app store, so it has a web based counterpart unlike Quillpad. The Android app is weirdly slow to open. I'll need to test this one more.
Tasks/ToDo
Android:
- Tasks.org - excellent Task app. Supports subtasks, categories, reminders, recurring events. It can also sync with Google but ewwww.
Handwritten Notes:
All:
- Saber - Cross platform notes app. Akin to Samsung notes. This one is rough in my experience so far. But it has potential and I will be following to watch how it updates.
2FA:
Android:
- Aegis - excellent 2FA app. I just recently migrated out of Google and Microsoft's versions and am very happy. To be honest though, I'm not exactly sure how the NC integration works on this one, but it is mentioned on their site:
If your cloud provider supports the Storage Access Framework of Android (like Nextcloud does), it can even create automatic backups to the cloud.
There are others I've tested, but not long enough to make any comments on. Les Pas being one of them. I'm happy with Immich, so didn't give this one a fair shake.
Joplin syncs with Nextcloud - Orgzly does too. Agreed, Jtxboard does - via davx5.
I'm currently using obsidian synced via syncthing. I know it's not Nextcloud, but it works well and has a nice interface and lots of plug-ins - even on Android. It might be able to sync - not bothered trying to yet - if anyone has, please comment.
Good luck with your search.
I tried syncthing with Obsidian and kept getting collisions and conflicts. So I ended up paying for a year of their Sync. It's been flawless. But now that I know a bit more about selfhosting, I will try again with this scenario. $8/mo is too much.
You could sync it with NC in sort of a janky way. Using Rclone to connect to NC via Webdav. Then rclone mount that remote and put your vault in it. Or maybe just symlink it? I'm not sure if Rclone can do a persistent mount that would stick through reboots though.
I am using Autosync to sync Obsidian between my mobile, a laptop and a tablet with the central point being Nextcloud. Running without any problems for ca. 3 months.
Oh very nice. Hadn't heard of that one. I'm running an instance of seafile that does a bang up job syncing and I could just leverage that for Obsidian. It stores data on the server in git-like chunks, which some folks don't like. But it's also what makes it stupid fast and has revising history. I personally love it.
There's also a self-hosted LiveSync plugin in obsidian, uses CouchDB IIRC