Enhance your account security with two-factor authentication. Approve sign-in requests or use verification codes to protect your Synology NAS and account. It can even replace your password for a more streamlined yet secure login experience.
Summarized from real user reviews of Synology Secure SignIn. Based on 8.4K reviews and a 4.8/5 average, it highlights the 4 positives and 4 negatives reviewers mention most about this Utilities app.
1.3.1
May 6, 2026
Fixed Issue: 1. Minor bug fixes. 2. Fixed an issue that could cause increased memory usage over time.
More4 issues
Approval requests not showing up
OTP codes not working as expected
4 requests
Add Face/Touch ID validation
Improve Apple Watch integration
Synology Secure SignIn is an application designed to enhance the security of your Synology account and NAS. It provides two verification methods: 'Approve sign-in' and 'verification code (OTP)', which can be used for two-factor authentication or to replace your DSM password entirely.
You need a Synology NAS and a Synology account to use this application. Additionally, your DiskStation Manager must be version 7.0 or above, with the Synology Secure SignIn service enabled.
The 'Approve sign-in' feature allows you to approve or deny sign-in requests directly from your mobile device. This can be used as a second step in your two-factor authentication process, providing a convenient and secure way to verify your identity.
No, a Synology NAS and a Synology account are strictly required to use Synology Secure SignIn. The application is designed to work in conjunction with Synology's ecosystem to protect your NAS and account access.
Yes, the application itself is free to download and use. There are no in-app purchases or advertisements mentioned, indicating it's a free utility provided by Synology.
