CCC ONE is the industry standard for writing estimates. Supplement Tool is the fastest way to turn those estimates into approved supplement letters.
CCC ONE doesn't write supplement letters — it writes estimates
CCC ONE creates line-item estimates that go to the carrier. When the adjuster cuts your estimate, you still need a professional narrative letter to fight back. That's what Supplement Tool does — and it costs $71/month vs. CCC ONE's $1,750–$2,750/month.
60-second letters
vs. hours writing by hand
Voice input
Describe damage hands-free
Photo AI analysis
Auto-fills description
New: Supplement Line Builder — exclusive to Supplement Tool
Enter each disputed line item and the AI formats a structured, adjuster-ready addendum with professional justification for every line. CCC ONE creates estimates — it doesn't build the supplement addendum that fights for them.
Pricing
Monthly price
CCC ONE bundles estimating + management
Free trial
Cancel anytime
Setup / onboarding fee
What It Does
Line-item damage estimate
CCC ONE is an estimating platform — we are not
AI supplement letter writing
CCC ONE creates estimates, not persuasive letters
Adjuster denial rebuttal letter
Restoration supplement letters
OEM language & I-CAR citations in letter
Supplement Line Builder — format & justify disputed line items
Unique to Supplement Tool — enter each disputed item, AI formats a structured addendum with justification
Insurance company supplement request (digital)
CCC Estimate Share sends to carrier directly
Mobile & Usability
Mobile-first design
CCC ONE requires a desktop workstation
Works on iPhone & Android
Voice input — speak damage description
AI photo analysis — auto-fills description
No software install required
Output & Export
Professional narrative letter output
Copy to clipboard
Print / PDF export
Word (.docx) export
Email to adjuster directly from the app
Tools & Extras
OEM part number lookup
Labor time lookup
Live disputed amount calculator
35+ insurance companies pre-loaded
Letter history
They're not competing — they're complementary
Most shops already use CCC ONE. Supplement Tool works alongside it — you write your estimate in CCC ONE, then use Supplement Tool to write the letter that gets it approved.
One approved supplement recovers $500–$3,000. Supplement Tool costs $71/month. The math is obvious.
7-day free trial. No charge until day 8. Cancel anytime.
Already using CCC ONE? Try the tool first — no signup needed.