PainChek® stores some data on your device (a local cache). This is not the main copy of the data (which is securely stored and backed up on PainChek servers) and so it doesn't matter if your device fails or is lost.
However, in order to completely secure that local data, it's necessary to encrypt your device. Fortunately with modern versions of iOS and Android, that is very easy. Encryption is enabled when you set up a device passcode (that is a passcode that you need to enter to unlock the device).
A strong passcode (6 or more random characters/numbers) is recommended.
Encrypting your device is considered industry best practice and it is beneficial not just for PainChek® data, but for all data on your iOS or Android device.
Once your device is secured (encrypted), the PainChek® App can be downloaded through the Apple App Store or Google Play Store. Users need to have their own Store account in order to download the PainChek® App.
Search for "PainChek" to find the PainChek® App in the store. You can then download the PainChek® App onto your device.
To download the PainChek® App, the device needs to be connected to the Internet.