A flagship app by Built it Simple
Simply Business
Create and track professional estimates and invoices right from your phone. Simply Business gives small businesses and contractors everything they need to get paid faster—no spreadsheets, no complexity.
Simple software for real work
Built it Simple is dedicated to building intuitive, no-nonsense tools that help people run their businesses with less friction. We believe powerful software doesn't have to be complicated—it should just work. Simply Business is our flagship app, purpose-built for the way small businesses actually operate.
Estimates and invoices, made simple
From the first quote to the final payment, Simply Business keeps your whole workflow in one place.
Business Dashboard
See revenue, customers, and outstanding work at a glance.
Build Estimates
Add customers, line items, materials, and tax in seconds.
Track Invoices
Send, share, and mark invoices paid to get paid faster.
Everything you need to run the money side
Simply Business combines estimating, invoicing, and customer management into one streamlined app.
Create Estimates
Build detailed, professional estimates with line items, materials, and tax—then turn them into invoices.
Send & Track Invoices
Generate invoices and track their status from Draft to Sent, Paid, or Overdue.
Customer Management
Keep all your customers and their history organized in one convenient place.
Materials & Line Items
Save reusable materials and add them to any estimate or invoice with a tap.
Share PDF & Print
Export polished PDFs, print, or share estimates and invoices directly from your phone.
Payment Reminders
Send friendly payment nudges by email or text so you get paid on time.
Revenue Dashboard
Track total revenue, pending estimates, and unpaid invoices at a glance.
Private by Design
Your business data stays on your device—no accounts required and nothing stored on our servers.
Built with privacy at its core
Simply Business stores all of your customers, estimates, and invoices locally on your iPhone. We don't collect your business data, and there's no account to create. Read exactly how we handle your information in our privacy policy.
Read Privacy Policy100% On-Device
No servers. No tracking. No accounts.
Simply Business is coming soon
Be the first to create and track estimates and invoices with the simplest business app for iOS.
Get in touch with Built it Simple
Have questions about Simply Business? We'd love to hear from you.