Small construction company seeks craftsman software

We are looking for craftsman software for our small, modern construction company for the trades of tiling, flooring, and painting (wallpapering).

The software should meet the following requirements:

• Order processing
• Scheduler
• Measurements
• Invoicing
• Financial accounting interface (DATEV)
• Export of suppliers' purchase prices
• Mobile version
• iCloud or web-based, so that we can access the central computer from different locations
• The software should be expandable (functions, interfaces)
• Rental or hire purchase preferred

The software is planned for two users.