You still can use iSafeBox if you forgot your master password. But you will not be able to view any of your files, photos, passwords, and personal information which were protected using the master password. To be able to log in, please follow the steps below:
1. Delete the existing iSafeBox app from your device. Warning: if you have not synced your data before, all your existing data will be lost.
2. Re-install iSafeBox and create the new master password.