Yes. The Axsy Mobile App uses a local database that is secured using standard AES-256 encryption.
The AES-256 bit key is randomly generated and is stored in the secure OS storage area of the mobile device (e.g., iOS keychain). The OS storage integrates with OS security, which means a user must unlock the mobile device (via biometric recognition or PIN entry) to access the Axsy mobile app and encrypted locally stored data.
Please see the following article for more information on how the Axsy Mobile App provides an offline-first experience: Offline-first User Experience