Business Software/AI Tools/Creative Apps
Powerful Software
for Businesses and Creators.
Castellum builds software that helps you run, grow and protect your work — starting with Nexus, the command center for your business.
Now launching
Meet Nexus — the digital command center for your business.
Sales, expenses, clients, stock, staff and branches in one connected dashboard. No more scattered notebooks, spreadsheets and group chats.
Built for every kind of business
Shops, services, food businesses and growing teams with more than one branch.
Upcoming from Castellum
Creative and utility apps we’re getting ready to release. Get notified when each one launches.
Run your business from one place.
Nexus works on your phone, tablet and computer — nothing to install.
Upcoming Apps
Coming soon from Castellum
Creative, AI and utility apps in development. Tap “Notify me” and we’ll email you the day each one launches.