Pricing

Choose how to review your car deal

See the price first. Start with a free payment estimate or continue to a buyer’s-order review.

Free Basic Loan Calculator
Estimate a fixed-rate auto loan payment from your numbers.
Free

What’s included

  • Enter vehicle price, down payment, trade value and payoff
  • Adjust APR and loan term
  • See estimated amount financed, monthly payment and scheduled total
Quick Deal Check
One-time
One buyer’s-order review: upload one photo or PDF, correct extracted fields, and review payment details, a loan estimate, and neutral questions for flagged charges.
$9.99one-time

What’s included

  • Upload one buyer’s order photo or PDF
  • Extract deal information and correct any fields
  • See estimated monthly payment and basic loan calculations
  • Identify potentially questionable or unclear fees and charges
  • Get neutral questions to ask the dealer
  • Receive a short Quick Deal Summary

Refund policy

One-time purchases of digital reports or tools are generally non-refundable once access to the purchased digital report or tool is provided, except for duplicate charges, a technical failure that prevents access, or refunds required by law.

See Terms & Disclaimer.

Full Deal Review
One buyer’s-order review: upload one photo or PDF, correct extracted fields, and review payment details, a loan estimate, and neutral questions for flagged charges.
$19.99one-time

What’s included

Everything in Quick Deal Check, plus:

  • Detailed fee-by-fee breakdown
  • APR, term, amount financed, estimated total interest, and estimated financing cost
  • Identify discernible optional products and dealer add-ons
  • Trade-in and equity analysis when trade information is provided
  • Compare selling price, taxes, fees, down payment, trade allowance and payoff, and amount financed
  • Neutral flags for items that may need clarification
  • Detailed Full Deal Summary with specific questions to ask before signing

Refund policy

One-time purchases of digital reports or tools are generally non-refundable once access to the purchased digital report or tool is provided, except for duplicate charges, a technical failure that prevents access, or refunds required by law.

See Terms & Disclaimer.

DealCheck Plus
Monthly access to PistonPaper’s current buyer’s-order review flow.
$29.99/month

What’s included

  • Current buyer’s-order review flow
  • Recurring monthly checkout
  • Plus-only benefits and subscriber access are not yet defined

Cancellation and refund policy

You may cancel a monthly subscription at any time. Cancellation stops future renewals, and access continues through the end of the current paid billing period. Payments already made are generally non-refundable, except for duplicate charges, technical issues that prevent access, or refunds required by law.

To request cancellation, email pistonpaper@polsia.app.

See Terms & Disclaimer.

The app does not yet provide subscription self-service or Plus-only access.

  • PistonPaper is not a lender
  • Estimates use the inputs you provide
  • No account is required to use the calculator

DealCheck Plus has no subscriber-only benefits or self-service management yet. The calculator is informational; taxes, fees and other unentered charges are excluded. Prices are in USD.