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SPECIFICTION
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Addressfinder vs PostalUp

Addressfinder

addressfinder.com

PostalUp

postalup.com

Side by side

FigureAddressfinderPostalUp
Price fromA$19/mo$1.58/mo
Free plan—Yes
Free trialYes—
Open source——
WebYesYes
APIYesYes
Plans published310
Spec score · Address Verification Software8.2 (#7)7.8 (#17)
IntegrationsListed integrations include BigCommerce, Drupal, Gravity Forms, HubSpot, Magento/Adobe Commerce, Microsoft Dynamics 365, Salesforce, Shopify Plus, WooCommerce and Zapier.The developer page provides a Postman collection and an OpenAPI specification for working with the API.
SupportThe site says local support is available by phone and email, and Enterprise plans include dedicated technical support.The developer page says technical support from its engineering team responds within 24 hours.

Plans

Addressfinder

  • AgileA$19 a month
  • BusinessA$55 a month
  • EnterprisePriced on request

Addressfinder pricing →

PostalUp

  • Free to TryFree
  • ZIP Code Database Basic$19 a year
  • Starter$29 a month
  • ZIP Code Database Standard$39 a year
  • ZIP Code Database Deluxe$79 a year
  • Professional$99 a month
  • ZIP Code Database Business$129 a year
  • Scale$299 a month
  • ZIP+4 Database Standard$299 a year
  • EnterprisePriced on request

PostalUp pricing →

In their own words

Addressfinder

Addressfinder has no write-up on Specifiction yet; its figures are above.

Visit addressfinder.com

PostalUp

PostalUp provides ZIP code databases and an address validation API for U.S. address data. The API supports standardization, verification, geocoding, and bulk processing; PostalUp says its address API uses USPS data refreshed monthly. Submitted addresses are processed in real time and are not permanently stored except as needed to provide the service or as permitted by the Privacy Policy. Developers can use API documentation, code examples, a playground, webhooks, and a Postman collection, with examples or options for JavaScript, Python, PHP, Ruby, cURL, Go, and Java. An OpenAPI specification is also available. Database downloads vary by product and include CSV, JSON, Parquet, GeoJSON, and Shapefile formats; listed data sources include USPS, Census, OMB, HUD, and TIGER. Use cases include e-commerce, real estate, logistics, marketing, insurance, and healthcare. The free API plan includes 1,000 requests and basic validation. Paid API plans start at $29 a month; separate database plans are annual, starting at $19 a year for ZIP Code Database Basic. Internal commercial use is included with downloads, but redistribution to customers requires a redistribution license.

Visit postalup.com