Dual space / app hider with security validation. Preferably to have someone with existing dual space app for customisation. Developer will have to prove he/she has the existing dualspace application.
For mobile app (only need apk)
1) Password validation against excel in web site prior opening dual space
2) App will be cloned and remain after original app deleted
3) Password used will mark password in excel as 1.
For web page (hosting will be provided)
1) To build a simple page to generate button to generate password in excel with default 0.
2) another "block" button to mark all password with value 1 become 0.