You can build your own custom authenticator app using the new SecurID SDK 3.1 for iOS and Android with Transaction Signing. Offer your users a way to authenticate with convenient Multifactor (MFA) options and SecurID software token, while seamlessly maintaining a similar look and feel across your existing applications for a better overall user experience. Version 3.1 includes all of the features provided in 2.x and 3.0.

Two types of authentication are available for custom apps:

• With cloud-based MFA functionality, you can incorporate One-Time Password (OTP) authentication and challenge methods such as push notification or a biometric to confirm a user’s identity. These methods are available to users who are in identity sources that are configured for the Cloud Authentication Service.
  
  
• SecurID software token employs a one-time, randomly generated tokencode generated on a software token that resides on a user’s mobile device. The tokencode or passcode (PIN + tokencode) is verified by the on-premise SecurID Authentication Manager server. 

You can also build Transaction Signing into your apps to protect the integrity of business transactions.

For more information, see SecurID SDK 3.1 for iOS Developer's Guide and Release Notes and SecurID SDK 3.1 for Android Developer's Guide and Release Notes.