2FA Authenticator (2FAS) vs Decibel Meter Sound Detector
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
2FA Authenticator (2FAS)
Securely log in to your online accounts with two-factor authentication. This app protects your personal data and passwords from cyber threats with a simple, private, and open-source solution. It offers easy token restoration, app protection, and offline functionality.
- Two-factor authentication
- Token backup and restore
- App protection with passcode/biometrics
- Open-source and transparent
- Offline functionality
- Cross-device sync
- One-tap authentication with browser extensions
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2FAS is the easiest way to enable two-factor authentication (or multi-factor authentication) to verify your identity and securely log in to accounts to keep your personal data and passwords protected from cyber threats — all from one app, 100% free! The world’s most secure, private, and simple 2FA app. Secure: • Easily restore your tokens with backups. • Add app protection with your passcode or biometrics. • 2FAS is open-source, transparent, and community-driven. Simple: • 2FAS syncs across your mobile devices. • An interface designed for simplicity. • One-tap authentication with 2FAS Browser Extensions. • Multi-language support. • Quick guides for setup and support. Private: • 2FAS works offline. • 2FAS doesn't store any passwords or metadata. • 100% anonymous use, no account required. It’s not too late to protect your data, so what are you waiting for? Protect your online accounts and services now with TOTP and HOTP algorithms. Start using the 2FAS authenticator app today! If you have any questions, talk with us on our Discord server: https://discord.gg/q4cP6qh2g5 Learn more about 2FAS: • Check our GitHub repository: https://github.com/twofas • Visit our website at: https://2fas.com/ • Follow us on X: https://x.com/2FAS_com • Subscribe on YouTube: https://www.youtube.com/@2FAS
Decibel Meter Sound Detector
Monitor your surroundings with this decibel meter app. It measures sound levels in real-time, providing clear visual analysis and advanced filtering options. Easily share your readings for documentation or further analysis.
- Real-time decibel (dB) readings
- Frequency weighting (A, B, C, Z)
- Share measurements via various apps
- 1/3 octave band frequency analysis
- Display current, average, and max values
- Advanced filter range settings
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Track Environmental Noise with Ease Monitor your surroundings with this professional-grade decibel meter app, featuring clear visual noise analysis. The Decibel Meter app uses your device’s built-in microphone to measure sound levels in decibels (dB), offering real-time audio frequency (AF) and dB readings. It supports advanced filtering for frequency and dB ranges. You can easily share your measurements via Messages, Email, WhatsApp, Notes, and more for further analysis or documentation. Note: The app’s accuracy is limited by your device’s microphone capabilities and is not intended to replace professional-grade sound meters. The audible frequency range is from 20 Hz to 20,000 Hz. For additional information and comments, please contact info@ashiers.com. FEATURES: - Accurate measurements - Frequency Weighting: A, B, C, Z - Share readings via Email, Message, Notes, WhatsApp, and more - 1/3 octave band frequency analysis - 20 to 130 dB - Audible frequency range: 20 Hz to 20,000 Hz - Intuitive design - Advanced filter range with time-in/time-out settings - Display current, average, and maximum values - Display peak frequency
Screenshots
Verdict
The clearest difference is in-app purchases: 2FA Authenticator (2FAS) at none against Decibel Meter Sound Detector's 6. Decibel Meter Sound Detector's advantage is iOS requirement (14.0 vs 18.6). On price, rating, review sentiment and ratings volume 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
Both are free to download. Decibel Meter Sound Detector sells 6 one-off in-app purchases. 2FA Authenticator (2FAS) asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for 2FA Authenticator (2FAS) against 4.7 for Decibel Meter Sound Detector. Both are backed by a comparable volume of ratings — 36K and 56K respectively. Written reviews are what separate them: 77% of 2FA Authenticator (2FAS)'s written reviews are positive against 79% of Decibel Meter Sound Detector's.
2FA Authenticator (2FAS) ships an update monthly, Decibel Meter Sound Detector every 5 weeks. Both last shipped on October 26, 2026.
| Parameter | 2FA Authenticator (2FAS) | Decibel Meter Sound Detector |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (36K ratings) — better | 4.7 (56K ratings) |
| Positive reviews | 77.3% of reviews | 78.7% of reviews — better |
| Number of ratings | 36K | 56K — better |
| Update frequency | Monthly — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 18.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 81 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Two Factor Authentication Service Inc. | Ashraf Thoppukadavil |
Customer experience
2FA Authenticator (2FAS)
Decibel Meter Sound Detector
User reviews
2FA Authenticator (2FAS)
From 36K App Store ratingsWhat we love
- 🚀 Efficient and fast
- 🔒 Secure and private
- 👍 Simple and intuitive UI
- 💡 Customizable icons and folders
- 🔒 iCloud backup and sync
Room to improve
- 🐛 Occasional bugs and crashes
- 🔒 Lack of password/PIN protection
- 🕰 No Apple Watch app
- 🐛 Issues with push notifications
- 🕰 Missing desktop/web app
Decibel Meter Sound Detector
From 56K App Store ratingsWhat we love
- 👍 No bloatware
- 👍 Quite useful
- 👍 Excellent and useful app
- 👍 Easy to use
- 👍 Simple, clear and accurate
Room to improve
- 🐛 Ads block settings
- 🐛 Inaccurate readings
- 🐛 Not sensitive at all
- 🐛 Dangerously inaccurate
- 🐛 Unable to record continuously
Bugs and requests
2FA Authenticator (2FAS)
Reported bugs
3 issues- Tokens disappearing after device changes
- Push notification failures
- Incompatibility with older devices
Requested features
5 requests- Alphanumeric passcode option
- Custom icon uploads
- Apple Watch app
- Desktop/web app
- Improved support and communication
Decibel Meter Sound Detector
Reported bugs
4 issues- Analyze feature is broken
- Analyze feature has backwards time axis
- Repeatedly prompts to paste from clipboard
- Freezes after a few seconds of use
Requested features
7 requests- Ability to name or add notes to recordings
- Option to specify microphone to use
- Ability to stop and start new recordings without closing app
- Landscape mode
- Calibration against professional equipment
Show 2 moreShow fewer
- Audible alarm for reaching set decibel level
- Display full date and time on recordings
In-app purchases
2FA Authenticator (2FAS)
No in-app purchases
Decibel Meter Sound Detector
- Decibel Meter$1.99
- Decibel Meter Premium$4.99
- Decibel Meter$4.99
Show 3 moreShow fewer
- Decibel Meter$9.99
- Decibel Meter$19.99
- Decibel Meter$29.99
Questions
Is 2FA Authenticator (2FAS) free?
Is Decibel Meter Sound Detector free?
Which has better reviews, 2FA Authenticator (2FAS) or Decibel Meter Sound Detector?
Do 2FA Authenticator (2FAS) or Decibel Meter Sound Detector have ads?
Which is updated more often, 2FA Authenticator (2FAS) or Decibel Meter Sound Detector?
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