Download Synology Secure SignIn APK
com.synology.securesignin · by Synology Inc.
• Updated: Mar 23, 2026
About Synology Secure SignIn
**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.
All Synology Secure SignIn APK versions
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Frequently Asked Questions
Yes. Every Synology Secure SignIn APK on APK.now is automatically scanned and the cryptographic signature is verified against the original publisher's certificate (Synology Inc.). Files that fail verification are removed before they ever reach the catalog.
Enable 'Install from unknown sources' for your browser (or the file manager you use to open the APK) under Settings → Apps → Special access. Tap the downloaded Synology Secure SignIn APK, confirm the prompts, and Android installs it just like any app from the Play Store.
The latest Synology Secure SignIn version available on APK.now is the latest version. We track new releases from Synology Inc. continuously and add them to the catalog as soon as they pass verification.
Yes — every Synology Secure SignIn APK and every version on APK.now is free to download. We never gate downloads behind sign-up, surveys, or paywalls.
APK.now keeps a full archive of every Synology Secure SignIn release, including older versions that the Play Store has already replaced. The APKs work on devices without Google Play Services (Huawei, GrapheneOS, Amazon Fire) and are signature-verified so you can be confident the file is genuine.