Comparison

Bitwarden Authenticator vs NagMon

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

Head to head
About

Bitwarden Authenticator

Generate time-based one-time passwords for two-factor authentication on any website or application. This tool provides an extra layer of security for your accounts, ensuring your identity is verified and sensitive data remains protected from unauthorized access.

Highlights
  • Generates 2FA verification codes
  • Supports TOTP for universal compatibility
  • Simple and intuitive interface
  • Adds an extra layer of protection
  • Backed by a trusted company
Features
Read full description

New from Bitwarden, provider of the password manager trusted by millions, Bitwarden Authenticator generates verification codes for two-factor authentication, ensuring your identity is verified when you log into accounts. Using industry-standards, Bitwarden Authenticator supports any website or application that uses TOTP. ADD AN EXTRA LAYER OF PROTECTION Generate verification codes to ensure your identity is verified, keeping your sensitive data out of reach of imposters. UNIVERSAL COMPATIBILITY Bitwarden Authenticator uses industry standard methods for verification code generation, so it will work with any website or application that utilizes time-based one-time passwords. EASY TO USE A simple, intuitive design and straightforward interface makes it easy to start incorporating authentication into your digital life Bitwarden empowers organizations to secure passwords, developer secrets, and passkeys. Visit Bitwarden.com to learn more about Bitwarden Password Manager, Bitwarden Secrets Manager and Bitwarden Passwordless.dev!

About

NagMon

This app provides real-time monitoring of your IT infrastructure via Nagios. It offers instant alerts, intuitive filtering, and a mobile-optimized dashboard for quick issue resolution on the go. Designed for speed, security, and privacy, it keeps you informed about your network's health.

Highlights
  • Real-time Nagios data
  • Instant alerts
  • Intuitive filtering
  • Mobile-optimized dashboard
  • Host and service monitoring
  • Privacy-focused design
Features
Read full description

NagMon is the fast, secure, and privacy-focused Nagios client built for system administrators and IT professionals who need to keep a constant eye on their infrastructure—wherever they are. Whether you’re managing a small lab environment or overseeing a global network, NagMon delivers your Nagios data in real time, with instant alerts and intuitive filtering tools that help you quickly spot and resolve issues. Designed for speed, security, and usability, NagMon puts powerful monitoring right in your pocket. With a clean, mobile-optimized dashboard, you can see the health of your entire environment at a glance, drill down into specific hosts or services, and act on issues before they escalate—all without compromising your privacy. No ads. No tracking. Just efficient, reliable monitoring on the go.

Screenshots

Bitwarden Authenticator4 screens
NagMon4 screens

Verdict

The call

The clearest difference is rating: NagMon at 4.1 against Bitwarden Authenticator's 3.5. NagMon also leads on review sentiment (50% vs 41%). Bitwarden Authenticator's advantage is ratings volume (97 vs 7) and update cadence (fortnightly vs every 5 weeks). On price, ads, in-app purchases and monetization model 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.

ReceptionRating · Positive reviews · Number of ratings

NagMon holds the better App Store score, 4.1 against 3.5. That said, the two scores are not equally well evidenced: Bitwarden Authenticator has 97 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 41% of Bitwarden Authenticator's written reviews are positive against 50% of NagMon's.

UpkeepUpdate frequency

Bitwarden Authenticator ships an update fortnightly, NagMon every 5 weeks. The most recent releases landed on November 12, 2026 and November 5, 2026 respectively.

Scorecard5 real differences · 5 level
Bitwarden Authenticator versus NagMon: the parameters behind the verdict, then further details
ParameterBitwarden AuthenticatorNagMon
PriceFreeFree
Rating3.5 (97 ratings)4.1 (7 ratings) — better
Positive reviews40.8% of reviews50.0% of reviews — better
Number of ratings97 — better7
Update frequencyFortnightly — betterEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.5
Further details — not scored
Size76 MB5 MB
Age rating4+4+
DeveloperBitwarden IncRichard Vetter

Customer experience

Bitwarden Authenticator

All ratings95 ratings
Positive56.8%
Neutral11.6%
Negative31.6%
Written reviews157 reviews
Positive40.8%
Neutral22.3%
Negative36.9%

NagMon

All ratings7 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Bugs and requests

Bitwarden Authenticator

Reported bugs

3 issues
  • Search results showing placeholder codes
  • Backup not restoring codes after device restore
  • Crashes after app updates

Requested features

5 requests
  • Add icons for services
  • Allow rearranging of entries
  • Implement iCloud/cloud sync
  • Add Apple Watch support
  • Require biometric authentication on each app open

NagMon

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Bitwarden Authenticator

No in-app purchases

None

NagMon

No in-app purchases

Questions

Is Bitwarden Authenticator free?
Bitwarden Authenticator is free to download, with no in-app purchases.
Is NagMon free?
NagMon is free to download, with no in-app purchases.
Which has better reviews, Bitwarden Authenticator or NagMon?
NagMon is rated higher. Bitwarden Authenticator averages 3.5 out of 5 from 97 ratings, while NagMon averages 4.1 from 7 ratings.
Do Bitwarden Authenticator or NagMon have ads?
Neither Bitwarden Authenticator nor NagMon shows ads.
Which is updated more often, Bitwarden Authenticator or NagMon?
Bitwarden Authenticator ships an update fortnightly, and NagMon every 5 weeks. Most recently, Bitwarden Authenticator was updated on November 12, 2026 and NagMon on November 5, 2026.

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