PostCheck for Address Book

Purchase PostCheck

Payments are made securely through PayPal, but no account is required. eChecks may take a few days to clear.

An email will be sent to the address you enter during checkout with the link to download PostCheck.

Already Purchased?

Returning purchasers of PostCheck, please fill in the email address you used when you purchased PostCheck and click the download button.

Registered email:

Version History

  • 1.8.2 (5/15/08)
    • Made a mistake in the last release. For multiple locations, it might not add a ZIP Code at all. This has been fixed.
  • 1.8.1 (5/14/08)
    • Will no longer add a ZIP+4 Code to addresses with "multiple locations found". Usually the default ZIP+4 was fine, but in certain situations units may have different ZIP+4 Codes and applying the default ZIP+4 would not be correct.
  • 1.8 (4/21/08)
    • Added options for abbreviating Cities, Street Names, Unit Names and Common Street Suffixes. All options are available in the PostCheck Options window.
    • City abbreviations are now disabled by default.
  • 1.7.1 (2/25/08)
    • Fixed a bug with symbols and accented characters in addresses.
  • 1.7 (2/8/08)
    • Added the option to not lookup +4 portion of ZIP Codes. Found that many +4 codes did not fit nicely on the iPhone, I didn't like how they looked.
  • 1.6 (9/2/07)
    • A recommended update for all PostCheck users.
    • Fixes a potential serious conflict with sync services that could lead to an empty Address Book database. All batch Address Book database updates are now done on the main thread to prevent such conflicts from occurring.
    • PostCheck will now try flipping your apartment/suite number and street address lines, if they're not in the order that the USPS prefers.
    • Correctly encodes characters for XML, such as ampersands and quotes.
  • 1.5.1 (8/13/07)
    • Fix problem where abbreviations would be capitalized inside of another word.
    • Fix a capitalization problem with numbered streets (i.e. 4th St)
    • Should fix hanging hyphens where no ZIP+4 exists.
  • 1.5 (3/13/2007)
    • Added batch lookup option (hold Shift key while clicking on address label).
    • Improved capitalization of directional abbreviations (NW, NE, SW, SE).
  • 1.0 (2/12/2007)
    • Initial release.