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OTP Auth VS Sentinel Authenticator

Compare OTP Auth VS Sentinel Authenticator and see what are their differences

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OTP Auth logo OTP Auth

The app for calculating one-time-passwords on iPhone and iPad.

Sentinel Authenticator logo Sentinel Authenticator

Sentinel is an Authenticator app to help users make 2-Factor Authentication easier.
  • OTP Auth Landing page
    Landing page //
    2022-06-23
  • Sentinel Authenticator Landing page
    Landing page //
    2023-09-12

OTP Auth features and specs

  • Security
    OTP Auth provides an additional layer of security by requiring a one-time password that changes periodically, making it harder for unauthorized users to gain access.
  • Open Source
    The project is open-source, allowing for transparency in its security implementation and enabling community contributions to its development and improvement.
  • Standards Compliance
    OTP Auth supports industry standards such as TOTP (Time-based One-Time Password) and HOTP (HMAC-based One-Time Password), ensuring compatibility with various services and systems.
  • Cross-Platform
    The application supports multiple platforms, making it versatile and accessible on different devices, whether you're using iOS, Android, or other operating systems.
  • User-Friendly
    OTP Auth features an intuitive user interface, which makes it easier for users to set up and manage their OTP tokens.

Possible disadvantages of OTP Auth

  • Dependency on Device
    Since OTP Auth relies on the availability of the user's device to generate the one-time passwords, losing the device or having it malfunction can impede access to services.
  • Initial Setup Complexity
    The initial setup process can be daunting for non-technical users, especially those who are unfamiliar with two-factor authentication systems.
  • No Cloud Backup
    Without built-in cloud backup functionality, users must manually backup and transfer their OTP secrets when switching devices, which can be cumbersome.
  • Limited Customer Support
    As an open-source project, OTP Auth may not offer the same level of customer support and troubleshooting assistance as some proprietary solutions.
  • Dependence on Time Sync
    TOTP-based systems require accurate time synchronization between the server and the client device; any significant discrepancy can result in invalid passwords.

Sentinel Authenticator features and specs

No features have been listed yet.

OTP Auth videos

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Why most providers have nasty 2FA implementations and how to setup OTP Auth on iOS

Sentinel Authenticator videos

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Category Popularity

0-100% (relative to OTP Auth and Sentinel Authenticator)

OTP Auth

Sentinel Authenticator

Identity And Access Management
94 94%
Identity And Access Management
6% 6
Password Management
93 93%
Password Management
7% 7
Two Factor Authentication
87 87%
Two Factor Authentication
13% 13
Security & Privacy
100 100%
Security & Privacy
0% 0

User comments

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Social recommendations and mentions

Based on our record, OTP Auth should be more popular than Sentinel Authenticator. It has been mentiond 11 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

OTP Auth mentions (11)

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Sentinel Authenticator mentions (6)

  • I've made this 2FA Authenticator app to never lose your tokens, based on iCloud Keychain
    Sure, I’ve just made this comparison table in the website: https://getsentinel.io. Source: about 2 years ago
  • I'm an indie developer and I've made an open-source app to try to simplify the management/storage of seed phrases, mostly for "low-technical" people, to help boost the adoption of non-custodial wallets
    The app is open source and can be found on GitHub. This is also the official website with some more details. Source: about 2 years ago
  • The stats on 2FA on Twitter is worrying and with removal of SMS as an option for non-twitter blue users is even worrying 😟
    Some names? getsentinel.io, authy.com, google authenticator, etc. Source: about 2 years ago
  • I don’t understand losing the two factor authentication ?
    Try the like of https://getsentinel.io. Source: about 2 years ago
  • I'm an Indie Developer and I've created a secure Authenticator app for iOS, macOS & watchOS to make 2-Factor Authentication a little bit easier to manage. It's name is Sentinel.
    Today I present to you Sentinel Authenticator, an app I personally developed with the goal of making 2-Factor Authentication easier to manage. Source: over 2 years ago
View more

What are some alternatives?

When comparing OTP Auth and Sentinel Authenticator, you can also consider the following products

Aegis Authenticator - Aegis Authenticator is a free, secure and open source app to manage your 2-step verification tokens...

Authy - Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.

andOTP - andOTP is a two-factor authentication App for Android 4.4+

Authenticator Plus - Authenticator Plus generates 2-step verification codes and lets you synchronize your accounts.

Authenticator - Authenticator is a simple, free, and open source two-factor authentication app.

TOTP Authenticator - TOTP Authenticator app makes it easier to setup and manage your 2-factor authentication accounts and tokens. The app allows you to add extra security to your accounts and protects them from hijacking. Available for iOS and Android.

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