Alternatives
Products that do what SynoSync does
Modern Synology / WebDAV sync tool for iOS
- 1BD
Hi HN, Today we’re launching PowerSync, a Postgres<>SQLite bi-directional sync engine that enables an offline-first app architecture. It currently supports Flutter, React Native and web (JavaScript) using Wasm SQLite in the browser, with more client SDKs on the way. Conrad and I (Ralf) have been working on our sync engine since 2009, originally as part of a full-stack app platform. That version of the system is still used in production worldwide and we’ve learnt a lot from its use cases and scaling. About a year ago we started on spinning off PowerSync as a standalone product that is…
2023 · powersync.com
- 2

- 3OS
https://github.com/acheong08/obsidian-sync Hello HN, I'm a recent high school graduate and can't afford $8 per month for the official sync service, so I tried my hand at replicating the server. It's still missing a few features, such as file recovery and history, but the basic sync is working. To the creators of Obsidian.md: I'm probably violating the TOS, and I'm sorry. I'll take down the repository if asked. It's not ready for production and is highly inefficient; Not competition, so I hope you'll be lenient.
2023
- 4
- 5

- 6RC
2018 · relicabackup.com
- 7SS
i made sink. it's a simple little tool that continuously syncs folders between 2 devices. no cloud, no email, flash drives, no bs. it just uses your local wifi. run it on your machines, tell them to trust each other, and you're set. and if you manage to edit the same file at once, it handles the conflict and saves both copies. for anyone who just wants to get files from point a to b without the headache. hope it makes your life a bit less annoying. github: https://github.com/sirbread/sink binary:…
2025 · github.com
- 8A1
I wrote a minimal iOS app called PocketServer (~1MB in download size) that creates persistent local HTTP/WebDAV servers which can actually run in the background. Functionalities: - Serve a folder via WebDAV — browse/add/delete files from others devices on the same network. - Host a static website or directory listing, accessible locally. - Share files cross-platform on the same network, no app needed on the receiving side. https://apps.apple.com/us/app/pocketserver-local-server/id67...
2025
- 9MR
Greetings, I started using Obsidian and the brilliant Obsidian Tasks plugin to manage Tasks in my notes however it didn't quite work for me as I would lose track of Tasks when away from my laptop, and there are no reminders for Tasks so it's not easy to stay on top of things. I wrote my first macOS App to solve the problem; Reminder Sync for Obsidian. It periodically scans your Obsidian Vault for Tasks and creates Reminders for them in Reminders.app! Once your Tasks are created as Reminders they are synced through iCloud so they are also visible on iOS; this solves the main problem I had…
2024 · turquoisehexagon.co.uk
- 10
- 11

Link all your storage and expose it via WebDAV on your phone
Nov 2025
- 12

- 13WL
Hey all, Just wanted to show off this app I built, its a LAN based WebRTC baby monitor that connects any apple devices together over WIFI so you can turn an old iPad or iPhone into a baby monitor! I got a bit sick of all the sketchy products that require you to buy another device and may or may not connect to Chinese servers and store all your information somewhere. So I figured what if there were no servers and we could just use our existing devices! I would love any feedback! You will need two apple devices to test it, but simulators do work.
Sep 2025 · apps.apple.com
- 14

- 15

- 16SO
Nov 2025 · github.com
- 17M2
Hey HN, I want to share with you something I and my four colleagues have been working on for the last several years. It’s a whiteboarding and notes tool called Muse[1]. We just released a 2.0 version which includes local-first sync. A little backstory: I’m one of the authors of the 2019 essay Local-first software[2]. (Past HN discussions[3][4].) The thesis is to reclaim some of the ownership over our data that we’ve lost in the transition from filesystems to cloud/SaaS. So I’m excited to bring CRDT technology “out of the lab” and into a commercial product as a chance to prove the value…
2022 · museapp.com
- 18

- 19

- 20SR
2019 · github.com
- 21

- 22

- 23SA
2015 · github.com
- 24

Ranked by how close each launch is in meaning, then by votes. Refine with a description →