Synology Secure SignIn

4.5
24.7K reviews
500K+
Downloads
Content rating
Everyone
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About this app

**Synology NAS and a Synology account are required for this Application.**

**DiskStation Manager 7.0 or above version with Synology Secure SignIn service enabled is required.**

Synology Secure SignIn increases account security and offers two verification methods: Approve sign-in and verification code (OTP). Approve sign-in can be used to replace DSM password. For enhanced protection, use either method as the second sign-in step of 2-factor authentication.
Updated on
Jul 31, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Device or other IDs
This app may collect these data types
Location, Personal info and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.6
24.3K reviews
Brandon Hill (MeshuggaDevlar)
December 2, 2025
This app is alright. It randomly signs out for no reason and changing devices is a pain. My favorite is when you're trying to sign into a phone app, like Synology Photos, and the approval window appears over the number you need to match it with. so if you can't remember that number you have to back out and look at it again. A minor annoyance.
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Ade Strudwick
December 20, 2025
Incredibly difficult to add a new account, going round in circles and in a chicken-and-egg situation. Had to request an emergency code via email. Even now that my account for my NAS has been added, it just says that I've approved a login successfully but then doesn't log me into the device. been trying for over an hour now to log into my NAS that I can see and touch but can't log into. Thinking of going back to a QNAP...
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OneSpeed
January 7, 2026
The Synology server asks me to confirm a number on this app, but the app never shows the number. I asked for an emergency string of numerals, it came via email but the numerals entered (via copy/paste) did not work. I'm going back to a password.
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What’s new

What's New:
1. Users no longer need to re-authenticate for Auto Backup and Sync while signed in to the browser.

Fixed Issue:
1. Fixed an issue where Approve sign-in setup displayed misleading messages when using a QuickConnect connection.
2. Fixed an issue where Approve sign-in displayed a misleading error message when a user's login session had expired.

Compatibility and Installation:
1. Improved app stability when 16 KB mode is enabled in developer options.