AddressZen
7.9#2 in address verification software$49 one-timeFree planAndroidiOSWebAPI
VisitAddressZen vs PostNL Address Validation API
PostNL Address Validation API
6.5#12 in address verification software€0.02 one-timeFree planWebAPI
VisitWhat both publish
| Fact | AddressZen | PostNL Address Validation API |
|---|---|---|
| Coverage | The service advertises coverage of more than 240 countries and 60 languages. | The API documentation says the service supports over 250 countries, regions, and island groups. |
| Integrations | Listed integrations include Zapier, Adobe Commerce, WooCommerce, Contact Form 7, Gravity Forms, Gutenberg, Ninja Forms, FormAssembly, Formidable Forms, Formstack, JetFormBuilder and Elementor Pro. | PostNL lists plugins for Magento, WooCommerce, ShopWare, and Opencart for Dutch address validation. |
AddressZen plans
- FreeFree
- Free for 1 yearFree
- 1,400 verified addresses$49, paid once
- 5,000 verified addresses$149, paid once
- 14,000 verified addresses$349, paid once
- 55,000 verified addresses$1,000, paid once
PostNL Address Validation API plans
- Address check for Benelux addressesFree
- International address validation€0.02, paid once
Pick AddressZen if…
AddressZen suits businesses and developers that need to validate, standardize, or suggest US and international addresses. Its API and integrations may fit websites and forms that collect address details.
Pick PostNL Address Validation API if…
The API suits webshops and CRM users seeking address checks for checkout and address-data accuracy. Its free Benelux option is specifically for PostNL parcel-contract customers.