Here are three app name suggestions based on the provided description and keywords:

1. **Nullify** - A sleek and modern app name that conveys the idea of eliminating or voiding unnecessary elements.

2. **VoidSpace** - This name suggests an open, unexplored area, perfect for an app that focuses on the concept of 'null' or absence.

3. **Nullect** - A creative blend of "null" and "collect," implying a focus on gathering or managing non-existent or abstract elements.

If you would like more targeted suggestions or specific themes, feel free to provide additional details!