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Tighten Pro is a code generator & verifier for Mac App Store receipt validation, codesigning & security.

Getting your Mac OS X App ready for the App Store is simple. Until you start thinking about verifying the store receipt, checking the certificate chain used to sign your application and checking the integrity of the application bundle. Implementing all of the WWDR recommendations for the App Store could take up to a month (that's the voice of experience speaking), even for experienced developers!

Tighten Pro changes all that. With a built-in code generator that reads directly from your codesign-ed app bundle, you more...

What's New

Version 1.0.11:
  • Secure, inline In-App purchase validation.
  • Sandbox security assessment and entitlements.
  • Gatekeeper/Developer ID certificate support & code generation.
  • MASReceipt inspector shows all receipt data including In-App purchases.
  • New receipt validation code with signing and trust certificate chain verification.
  • Generated code now clean of all deprecated function calls.


OS X 10.6.8 or later

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Current Version (1.x)


Downloads 806
Version Downloads 159
License Commercial
Date 15 Nov 2012
Platform Intel 64 / OS X / Intel 32
Price $299.99
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