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Stop overpaying your vendors

Appendix automatically catches billing errors, detects fraud, and identifies anomalies in your vendor spending before you overpay.

See how much you're losing in minutes
app.appendix.tech
Appendix Dashboard
$2,400 recovered
Duplicate invoice caught
Rate hike detected
HVAC vendor +12%

On Average, Businesses Are Overpaying Vendors by Up to 5% Per Year

Across utilities, waste management, HVAC, pest control, and more. That's tens of thousands of dollars walking out the door every year.

⚡Utilities
🗑️Waste & Recycling
❄️HVAC Services
🐭Pest Control
🧹Cleaning Services
🌿Landscaping

Billing Errors

The Institute of Finance and Management found that 39% of invoices contain errors.

Duplicate Bills

Duplicate invoice payments are as high as 2% with nearly 10% of invoices being duplicates in some industries.

Silent Rate Increases

Vendors often sneak in rate hikes without you noticing, which add up over months or years.

Fraud

Over 20% of businesses have reported losses due to fraudulent invoices with an average of $30,000 per incident.

THE SOLUTION

We Don't Just Find Problems. We Help You Fix Them.

Appendix isn't another analytics dashboard. We're your automated watchdog for every recurring vendor, catching errors, flagging fraud, and helping you take action before you overpay.

Detect

Automatically catch overcharges, duplicates, and suspicious invoices across all your vendors

Investigate

Get clear explanations on what's wrong and what it costs you.

Act

Take action with your team to address issues before they cost you money

Everything you need to stop overpaying

One platform for all your recurring vendor costs.

Automated Bill Processing

Forward invoices from any vendor: utilities, trash, HVAC, pest control, cleaning, etc. We handle the rest.

Cross-Vendor Error Detection

Catch overcharges before you pay them. Wrong rates, unexpected fees, and service discrepancies are all flagged automatically.

Fraud & Duplicate Prevention

Suspicious invoices get flagged before you pay. Duplicate bills and phantom charges surfaced immediately.

Rate Hike Alerts

Vendors quietly raise rates. We detect increases within days so you can negotiate or switch before it adds up.

Issue Tracking Workflow

Track and manage billing issues to resolution. Assign tasks, log notes, and ensure nothing falls through the cracks.

Location Benchmarking

Compare costs across locations to spot outliers. See which sites are overpaying vs. their peers.

Simple, transparent pricing

One plan. All vendor categories. Everything included.

$40
per location / month

Covers all vendor categories: utilities, trash, HVAC, pest control, cleaning, and more.

Most customers see ROI in the first month

Everything included:

  • Unlimited bill uploads across all vendor types
  • Automatic error and fraud detection
  • Team workflow and task assignment
  • Realized savings tracking dashboard
  • Email forwarding ingestion
  • Cross-location benchmarking
  • Portfolio-level reporting

Stop Overpaying Your Vendors

Your vendor bills may be hiding costly errors. Find out how much you could be saving.