Synology Secure SignIn

Synology Secure SignIn

By Synology

Synology Secure SignIn is a proprietary authentication utility for Synology NAS hardware, providing push-based approval and OTP codes on iOS and Android.

The App DNA

What makes this app unique?

The tool removes the need for DSM passwords, but its current notification failures create a circular dependency that blocks access to network storage.

For Synology NAS administrators and users seeking secure, password-less access to their network-attached storage devices.

What does it look like?

Key features

Approve Sign-inedge

Replaces DSM passwords with push notification approval, serving as a primary retention loop for Synology hardware.

Verification Code (OTP)standard

Generates time-based one-time passwords for secondary authentication, acting as a standard security fallback.

How much does it cost?

freeFree application requiring compatible Synology NAS hardware

The app functions as a free utility to support the primary hardware business, requiring DSM 7.0 or above.

Velocity

Maintenance developmentperformanceShow more...

The app is currently in a maintenance phase, with only one release shipped in the last 124 days. Development activity is limited to stability and performance improvements rather than new feature delivery. Given the current cadence, the app remains in a state of low-frequency updates focused on technical debt rather than user-facing expansion.

See all version history

Who built it?

Synology

13+ apps tracked · Utilities

Synology DriveSynology DriveDS fileDS fileC2 PasswordC2 PasswordBeePhotosBeePhotosSynology MomentsSynology MomentsDS finderDS finderSynology MailPlusSynology MailPlusSynology Active InsightSynology Active InsightDS videoDS videoDS camDS camDS cloudDS cloudDS audioDS audio
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User Sentiment

What do users think recently?

Fresh user feedback skews frustrated. Users appreciate enterprise-grade security features like single sign-on and one-time password generation provide reliable authentication for business systems and the three-number confirmation method provides a secure and efficient way to verify identity during login attempts.

How are ratings & reviews evolving?

App Store
4.83 · 9k

What users say, by theme

What Users Love
  • Enterprise-grade security features like single sign-on and one-time password generation provide reliable authentication for business systems
  • The three-number confirmation method provides a secure and efficient way to verify identity during login attempts
What Frustrates Users
  • Sign-in requests fail to trigger notifications on mobile devices, preventing users from accessing their network storage hardware
+ 2 more themes
What Users Want 2 requests inside

49 of 49 recent reviews analyzed · high confidence · Frustrated overall

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Unlock 2 more frustration themes and 2 user requests, each backed by review evidence.

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Competition

Competitive landscape for Synology Secure SignIn

How's the Utilities market?

Synology Secure SignIn holds a niche position as a hardware-locked utility, with a 4.83 rating across 8,611 total ratings. The lack of recent feature updates and the reliance on proprietary authentication creates friction compared to standard third-party tools.

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The rivals identified

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The Analyst's Read

Key takeaways for Synology Secure SignIn

Where is it heading?

The market for authentication tools is shifting toward standardized, cross-platform solutions, leaving Synology Secure SignIn exposed due to its hardware-locked, proprietary design. Without a fix for the core notification failures, the app will continue to drive users toward third-party alternatives, undermining the security experience Synology intends to provide.

  • Notification failures block hardware access, which erodes trust in the security tool and drives users toward third-party alternatives.
  • The maintenance-only release cadence suggests that the current authentication tool is not a priority for active feature expansion.

The SWOT

Core Strengths
  • Proprietary approval mechanism replaces DSM passwords
Critical Frictions 2 weaknesses inside
Growth Levers
  • Apple Watch integration would reduce access friction
Market Threats 1 threat identified

Next best moves

1 Invest · 1 Maintain

Rebuild notification trigger logic because notification failures block hardware access → restore access reliability

+ 1 more prioritized move

The counter-intuitive read

The proprietary nature of Synology Secure SignIn is a liability…

Read the full take

Since the last report: Synology Secure SignIn has undergone no functional changes, remaining in a maintenance-only state for over four months. The analysis now more explicitly frames the app's proprietary design as a liability that actively drives users toward third-party alternatives due to persistent notification and login failures.

Bottom line

Reliable notification delivery is the core requirement for hardware access, and the current failure rate creates a critical barrier for administrators. Addressing the authentication loop would stabilize the user base, as the current friction drives requests for third-party alternatives.

Unlock 2 critical frictions, 1 market threat, 1 more prioritized move and the analyst’s take.

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FAQ

Is Synology Secure SignIn compatible with other NAS brands?
No, the application is strictly designed for Synology NAS hardware and requires DiskStation Manager 7.0 or above to function.
Can I use Google Authenticator instead of Synology Secure SignIn?
Users frequently request support for third-party authenticators, but the current implementation requires the proprietary Synology tool for the Approve Sign-in method.
Is Synology Secure SignIn safe to use for business systems?
While it offers enterprise-grade security features, users report reliability issues with notification delivery that can block access to business-critical systems.
What is the best alternative if notifications fail?
Users often suggest switching to standard third-party authentication applications, though this may require changing the security configuration on your Synology NAS.

Sources

  1. [1] App Store

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Synology Secure SignIn, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

What's new

Synology Secure SignIn has undergone no functional changes, remaining in a maintenance-only state for over four months. The analysis now more explicitly frames the app's proprietary design as a liability that actively drives users toward third-party alternatives due to persistent notification and login failures.

shifted

Proprietary design re-framed as a liability

added

Explicit threat of third-party migration

added

Expanded troubleshooting and compatibility guidance

Cite this report

Marlvel.ai. “Synology Secure SignIn Intelligence Report.” Updated Sep 7, 2026. https://marlvel.ai/apps/synology-secure-signin

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