RSA Authenticator (SecurID) vs Saybolt Viscosity
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RSA Authenticator (SecurID)
This app provides multi-factor authentication for enterprises, offering passwordless security through device-bound passkeys. It supports various authentication methods like OTP, biometrics, and push notifications to secure digital access.
- Multi-Factor Authentication (MFA)
- Passwordless Security with Passkeys
- One-Time Passcodes (OTP)
- Push Notifications
- Biometric Authentication
- QR Code Authentication
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RSA Authenticator App Secure your digital life and streamline access with the RSA Authenticator App. Designed for enterprises and highly regulated industries, RSA offers a trusted way to secure authentication regardless of your environment. Multi-Factor Authentication (MFA) Made Easy Protect your accounts with RSA's diverse multi-factor authentication (MFA) options, including one-time passcodes (OTP), QR codes, code matching, push notifications, biometrics, and hardware authenticators for an extra layer of security. RSA provides device-bound passkeys that are seamless and phishing-resistant, ensuring a smooth experience across your apps and services. Passwordless Security, Simplified Forget passwords; use passkeys. Use your device-bound passkey for fast, secure, and frictionless authentication—perfect for organizations looking to reduce risks and boost workforce productivity. Note: Your company must be an RSA customer to use this app. Contact your help desk administrator if you did not receive the information required to register your device. The RSA Authenticator app is an update to the existing SecurID 4.X app and a replacement for SecurID Authenticate 3.9.x app. Please refer to the “What’s New” section on macOS and iOS App Store for further details.
Saybolt Viscosity
This application serves as a calculator for converting viscosity and temperature values for petroleum fuels. It allows users to convert Kinematic Viscosity in Centistokes to desired target values across different temperature scales. In landscape mode, it transforms into a slider for visual comparison of viscosity units.
- Viscosity/Temperature conversion calculator
- Converts Kinematic Viscosity (cSt)
- Supports Fahrenheit and Celsius
- Landscape slider for unit comparison
- Compares Centistokes to Saybolt Universal Seconds and Furol
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Welcome to the Viscosity/Temperature conversion app developed by Saybolt. This App is a handy Viscosity/Temperature conversion calculator for petroleum fuels. The calculator converts the Kinematic Viscosity in Centistokes (cSt) at a reference Temperature in Fahrenheit or Celcius to the desired target value. The App changes into a traditional Viscosity/Temperature slider when the mobile device is held in landscape position. By reading the slider scale under the hairline Kinematic Viscosity units can be compared, such as the Saybolt Universal Seconds or Saybolt Seconds Furol, with the nowadays more widely used Centistokes. Temperature and viscosity conversions with the slider are indicative.
Screenshots
Verdict
The clearest difference is ratings volume: RSA Authenticator (SecurID) at 335 against Saybolt Viscosity's 2. RSA Authenticator (SecurID) also leads on update cadence (every 3 months vs every 14 months) and chart position (#161 vs unranked). Saybolt Viscosity's advantage is rating (3.0 vs 2.7) and iOS requirement (9.3 vs 16.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Saybolt Viscosity holds the better App Store score, 3.0 against 2.7. That said, the two scores are not equally well evidenced: RSA Authenticator (SecurID) has 335 ratings behind it against 2, so its average is the more settled of the two.
RSA Authenticator (SecurID) ships an update every 3 months, Saybolt Viscosity every 14 months. The most recent releases landed on November 10, 2026 and November 1, 2026 respectively.
| Parameter | RSA Authenticator (SecurID) | Saybolt Viscosity |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (335 ratings) | 3.0 (2 ratings) — better |
| Positive reviews | 26.6% of reviews | — |
| Number of ratings | 335 — better | 2 |
| Update frequency | Every 3 months — better | Every 14 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | #161 — better | — |
| Devices | iPhone, Mac | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 9.3 — better |
| Further details — not scored | ||
| Size | 64 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | RSA Security | Saybolt International B.V. |
Customer experience
RSA Authenticator (SecurID)
Saybolt Viscosity
Bugs and requests
RSA Authenticator (SecurID)
Reported bugs
4 issues- App crashes on launch
- Token import/sync issues
- Incompatibility with newer iOS versions
- Incorrect token generation on wrong PIN entry
Requested features
5 requests- Add Apple Watch support
- Implement Face ID/Touch ID authentication
- Allow copying/pasting of token
- Provide option to customize notification sounds
- Add widget for quick token access
Saybolt Viscosity
Not enough reviews yet to summarise bugs or requests.
In-app purchases
RSA Authenticator (SecurID)
No in-app purchases
Saybolt Viscosity
No in-app purchases
Questions
Is RSA Authenticator (SecurID) free?
Is Saybolt Viscosity free?
Which has better reviews, RSA Authenticator (SecurID) or Saybolt Viscosity?
Do RSA Authenticator (SecurID) or Saybolt Viscosity have ads?
Which is updated more often, RSA Authenticator (SecurID) or Saybolt Viscosity?
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