Vastu shastra (vāstu śāstra) is a traditional Hindu system of architecture. which literally translates to "science of architecture." These are texts found on the Indian subcontinent that describe principles of design, layout, measurements, ground preparation, space arrangement and spatial geometry. Vastu Shastras incorporate traditional Hindu and in some cases Buddhist beliefs. The designs are intended to integrate architecture with nature, the relative functions of various parts of the structure, and ancient beliefs utilizing geometric patterns (yantra), symmetry and directional alignments.

Decoration of the house is equally important as house construction. A house is meant not merely for occupying, it must be charming enough to bring the occupant back to it. It must be sweet enough so as one must be eager to return to his home. Fulfillment of the expectations, orderliness and pleasing arrangements are the beauty of a house. Interior decoration helps a lot in attaining these targets. Interior decoration is the arrangements of the inner space for maximum benefit of the users for a pleasant and peaceful stay at home. There are several factors to be considered while decorating a home.
1. Rasas (emotional feelings) in the rooms.
2. Displays
3. Furnishings
4. Furniture
5. Lighting the rooms
6. Painting works
7. Adjusting the sounds.

this app give important instructions to adjust your house settings according to vastu.