is an Emergency Notification System for delivering alerts by email and SMS message to the masses.  Unlike other systems, Lassie doesn't stop there.  We enable two-way communication between notification recipients and responders and help you responders locate those in need of assistance.

We built to be a more approachable mass communication system suitable for all sizes of populations for one-time unplanned emergency events as well as on-going planned campaigns. is a product of AppTree Software Inc. located in Portland Oregon.

Our mailing address is:


AppTree Software

422 NW 13th Ave, Suite 102
Portland OR 97209-2930


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