Best Contractor Invoice & Estimate App for iOS in 2025

The best contractor apps combine estimates and invoicing in one seamless workflow. Create the quote, win the job, convert to invoice, get paid—all from your iPhone. Here are the best iOS apps that do it right.

Why Estimates and Invoicing Belong Together

Using separate apps for estimates and invoices creates problems:

• Double data entry - Typing the same job details twice
• Version mismatches - Invoice doesn't match what you quoted
• Lost paperwork - Can't find original estimate when billing
• Slower payments - Delays between job completion and invoicing

The solution: One app that handles estimates AND invoices, with one-tap conversion between them.

Best Invoice & Estimate Apps for iPhone

#1: ContractorAI (Best Overall)

App Store Rating: 4.8 stars | Price: $34.99/month

Estimate Features:

• AI-powered estimates in 60 seconds
• Trade-specific calculators (roofing, electrical, plumbing, HVAC)
• Real-time material pricing
• Professional PDF proposals
• E-signatures for instant approval

Invoice Features:

• One-tap estimate-to-invoice conversion
• Progress billing for large jobs
• Payment tracking and reminders
• Multiple payment methods
• Automatic late payment notices

Why it's #1: ContractorAI is the only app that combines AI-powered estimating with complete invoicing. Convert a quote to an invoice in one tap—no retyping, no errors, no delays.

#2: Invoice Simple

App Store Rating: 4.6 stars | Price: Free-$9.99/month

Pros:

• Very simple interface
• Basic estimates and invoices
• Low price point

Cons:

• No contractor-specific features
• No AI estimating
• Limited customization
• No CRM or job management

Best for: Very basic invoicing needs only

#3: Joist

App Store Rating: 4.3 stars | Price: Free-$19.99/month

Pros:

• Designed for contractors
• Free tier available
• Basic estimate templates

Cons:

• Limited features on free plan
• No AI assistance
• Outdated interface

Best for: Very small contractors on tight budgets

#4: Jobber

App Store Rating: 4.5 stars | Price: $49-249/month

Pros:

• Full business management
• Scheduling included
• Client portal

Cons:

• Expensive
• Per-user pricing
• Basic estimating (no AI)

Best for: Larger service businesses needing scheduling

Feature Comparison Table

The Estimate-to-Invoice Workflow

Here's how the best apps handle the complete billing cycle:

Step 1: Create AI Estimate

Enter job details, AI calculates materials, labor, and profit margin. Generate professional PDF in 60 seconds.

Step 2: Send & Get Approval

Email or text the estimate to client. They review and e-sign on their phone.

Step 3: Do the Work

Job management features track progress, change orders, and notes.

Step 4: Convert to Invoice

One tap converts approved estimate to invoice. All line items transfer automatically.

Step 5: Get Paid

Client pays via link in invoice. Payment recorded automatically. Late reminders sent if needed.

Total administrative time: Under 5 minutes per job

Progress Billing for Large Jobs

For bigger projects, you need progress billing. ContractorAI handles this perfectly:

• Set milestones - 30% deposit, 40% at rough-in, 30% at completion
• Generate partial invoices - Bill for completed phases
• Track payments - See what's been paid vs. outstanding
• Adjust for changes - Handle change orders mid-project

Getting Paid Faster

Contractors using integrated estimate/invoice apps get paid 11 days faster on average. Here's why:

1. Invoice immediately - No delay between job completion and billing
2. Easy payment options - Clients pay via link in seconds
3. Automatic reminders - No awkward follow-up calls
4. Professional presentation - Clients take clean invoices more seriously

"I used to wait 30-45 days to get paid. Now I invoice from my truck right after finishing, and most clients pay within a week. ContractorAI changed my cash flow completely."

Tax Time Made Easy

All-in-one apps track everything for tax season:

• All estimates sent
• All invoices issued
• All payments received
• Revenue by month/quarter
• Outstanding receivables

Export reports in seconds. No more digging through email for old invoices.

Choosing the Right App

Choose ContractorAI if you:

• Want AI-powered estimates
• Need trade-specific calculations
• Value speed (60-second quotes)
• Want estimates + invoicing in one app
• Prefer flat pricing (no per-user fees)

Choose Invoice Simple if you:

• Only need basic invoicing
• Don't create complex estimates
• Want the cheapest option

Choose Jobber if you:

• Have a larger team needing scheduling
• Budget isn't a concern
• Need advanced routing features

Get Started Today

Stop using separate apps for estimates and invoices. Stop retyping data. Stop chasing payments manually.

Download ContractorAI and run your entire billing workflow from your iPhone:

1. Create AI estimates in 60 seconds
2. Get e-signatures on the spot
3. Convert to invoice in one tap
4. Get paid faster with online payments