Addressify vs USPS Addresses API

Addressify is a cloud API for Australian address verification and processing in websites, forms, apps, and business systems. It can correct incomplete or inaccurate entries, including misspellings and incorrect postcodes, and parse free-form text into fields such as building name, unit, street, suburb, state, and postcode. Its autocomplete supports address entry; geocoding can return latitude and longitude from an address or identify an address from coordinates. It can also provide a meshblock for use with ABS sociodemographic data. Addressify uses the Australian government's G-NAF dataset and says it refreshes data every three months when new government data is released. The API supports HTTPS and can integrate with software that makes HTTP GET calls and handles JSON, including CRM and ERP systems and Microsoft Excel, Access, and Word. Lite validates street-level fields but not whether unit, level, or street numbers exist; Pro provides complete validation. The 30-day Trial costs nothing and permits 1,000 daily API calls. Lite costs $2,000 a year and Pro costs $4,000 a year; both prices are GST exclusive.

USPS Addresses API has no write-up on Specifiction yet; its figures are above.