Yes! 

ContractorTools is a native iOS and Mac application that is completely self contained in your iPhone, iPad, or Mac computer, and does not need to be connected to the internet in order to fully function. 

All of the data that ContractorTools uses is stored in the local device (iPhone, iPad, or Mac computer), and only uses the internet to synchronize data between devices.

If your iPhone, iPad, or Mac computer is disconnected from the internet, ContractorTools will continue to function properly. When an internet connection is resumed, ContractorTools will automatically resume syncing data with the cloud.
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