Comparison

Sentry Interactive vs ZeroAuth

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Sentry Interactive

This app allows you to access your office or building with your iPhone or Apple Watch. Share access with others easily and securely using bank-level encryption. Multiple convenient unlock methods are available for quick entry.

Highlights
  • Tap to unlock office access
  • Share access with email
  • Apple Watch integration
  • 2-factor bank-level encryption
  • Convenient unlock methods
  • Real-time insights
Features
Read full description

Never worry about losing or forgetting your physical keycard or fob again, with Sentry Interactive you can store all your digital keys for multiple buildings in one place and unlock doors faster and more securely than ever using the Sentry Interactive iOS app. Designed for reliability, speed, and ease of use whether unlocking a single door or accessing multiple sites. With a simple UI design, lightning fast launch speeds, and high security and stability levels, users can unlock doors in less than 0.5 seconds using NFC tap-to-unlock technology, QR code scan, or using our iOS Widget. Access the Sentry Interactive app instantly via background NFC by simply tapping the NFC Smart Access Tile next to the door you wish to unlock. This will take you directly to the app, where you can unlock the door. Mobile credentials stored in the Sentry Interactive app are encrypted at rest and adhere to NIST cybersecurity best practices. Don’t have the Sentry Interactive mobile access software integrated with the access control systems in your buildings yet? Get in touch or find out more at https://sentryinteractive.com

About

ZeroAuth

Features
Read full description

ZeroAuth is a privacy-first authenticator app designed to keep your accounts safe without compromising your data. Generate secure one-time passwords (OTP) for all your accounts in one place. ZeroAuth is built with a strong focus on local security, meaning your sensitive data never leaves your device. Security First 1. Biometric authentication 2. Secure PIN protection 3. Automatic app lock after inactivity 4. Screenshot protection to prevent data leaks 5. Sensitive actions are protected in real time Simple & Fast 1. Scan QR codes instantly to add accounts 2. Clean, distraction-free interface 3. Quick OTP copy to clipboard 4. Smooth and responsive experience Built for Privacy 1. No tracking 2. No ads 3. No unnecessary permissions 4. Data processed locally on your device 5. No cloud dependency by default Backup & Restore 1. Export accounts securely via QR 2. Restore easily when switching devices 3. Designed to keep you in control of your data Why ZeroAuth? Unlike many authenticator apps, ZeroAuth focuses on real-world security: Prevents screenshots of sensitive data Locks instantly when needed Uses device-level security wherever possible Your accounts deserve more than just codes; they deserve protection. Start securing your digital life with ZeroAuth - An Optional Labs Group Security Product.

Screenshots

Sentry Interactive4 screens
ZeroAuth4 screens

Verdict

The call

The clearest difference is iOS requirement: Sentry Interactive at 15.5 against ZeroAuth's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Sentry Interactive ships an update monthly, ZeroAuth every 5 weeks. The most recent releases landed on September 30, 2026 and September 13, 2026 respectively.

Scorecard1 real difference · 9 level
Sentry Interactive versus ZeroAuth: the parameters behind the verdict, then further details
ParameterSentry InteractiveZeroAuth
PriceFreeFree
Rating2.6 (14 ratings) — better—
Positive reviews13.3% of reviews—
Number of ratings14 — better—
Update frequencyMonthly — betterEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPod, Apple Watch — betteriPhone, iPad
Requires iOS15.5 — better18.0
Further details — not scored
Size44 MB80 MB
Age rating4+4+
DeveloperDoordeck LimitedChandan Kumar Dash

In-app purchases

None

Sentry Interactive

No in-app purchases

None

ZeroAuth

No in-app purchases

Questions

Is Sentry Interactive free?
Sentry Interactive is free to download, with no in-app purchases.
Is ZeroAuth free?
ZeroAuth is free to download, with no in-app purchases.
Do Sentry Interactive or ZeroAuth have ads?
Neither Sentry Interactive nor ZeroAuth shows ads.
Which is updated more often, Sentry Interactive or ZeroAuth?
Sentry Interactive ships an update monthly, and ZeroAuth every 5 weeks. Most recently, Sentry Interactive was updated on September 30, 2026 and ZeroAuth on September 13, 2026.

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