To see what our customers and clients have to say about GPSy, please see our Customer Testimonials Page. The GPSy Screenshots Page gives a good sense of GPSy in operational use while our Compatibility Page lets you know which GPS units we work with (practically any). To download a free demo copy of GPSy, please visit our Download Page. You can purchase GPSy online over the internet or via more traditional means through our Purchase Page.

If you are a boater and want support for BSB (NOAA/NDI) nautical charts, or you work with very large or complex map images, you may be interested in GPSy Pro, the big-sister version of GPSy.

If you are new to GPS technology, you may want to browse our GPS Resource Library which contains FAQs and tutorials on the GPS. If you haven't yet bought a GPS unit, check out our GPS Unit Recommendations in our FAQ.

• Compatible with any NMEA-0183, NMEA-0182, Rockwell NavCore V, Rockwell Zodiac Binary, Sony IPS, or Trimble (TSIP) compliant GPS/Loran-C/etc. navigational unit
• Unique AppleEvent polling of GPS latitude/longitude/speed/track/UTC-time using AppleScript and GPSyLink
• Support for Rockwell NavCore V-based GPS units (DeLorme TrackNGo (TM) and Rockwell NavCard among others) as well as Rockwell Zodiac Binary Protocol (DeLorme Tripmate, among others)
• Computer-command control of programmable/bi-directional GPS units such as the Ashtec SCA-12/12S; DeLorme Tripmate^TM; Starlink Differential GPS units; Garmin GPS 20/20SL/30/31/35/36; and remotely configured GPS units.
• Mac System Time Synchronization to GPS/atomic time
• Static Position Calculation / SA-cancellation
• Text-to-speech of locational and navigational information
• World-map locater
• SI/Metric and Imperial conversion
• GPS Satellite Data; extensive almanac data
• Available maritime data
• Realtime data logging and playback
• PowerPC Native "Fat" binaries
• Support for all CTB compliant serial ports, including PowerBook serials; USB-to-Serial Adaptors (Keyspan; etc.); PortShare; PortJuggler; and PC Card GPS units and serial devices.
• Secure on-line registration

GPSy^TM is a full-featured Macintosh GPS communications software program. GPSy^TM connects your Macintosh to virtually any data-output capable GPS unit on the market, collects the GPS system data, and displays your location, speed, heading, bearing, and other information in real-time.

Precision Positional Information: GPSy^TM presents positional information in Degrees:Minutes:Seconds (41:18'56"N), decimal degrees (eg. 41.315550N), Degree: Decimal Minutes (41:18.933N); Universal Transverse Mercator (UTM); Universal Polar System (UPS); Maidenhead Grid; U.S. Military Grid Reference System (MGRS); Australian Map Grid (AMG); British National Grid (BNG); Dutch Grid (RK); German Grid (GK); Irish Transverse Mercator; New Zealand Map Grid (NZMG); Swedish Grid; Swiss Grid; and ECEF X, Y, Z systems. You can choose a primary and secondary coordinate system and can select from a list of 127 geodetic datums for automatic translation.

Automapping: GPSyLink^TM connects GPSy^TM to USGS topographic maps on CD-ROM. GPSy also includes links to most popular online Internet Map Servers such as GoogleMaps. You can set a continuous update (1, 3, 5, 10, 15, 30, 60 seconds) rate or single location. GPSyLink^TM can display your current waypoint using these map databases as well as your current bearing, heading, distance to go, and speed. This provides a sophisticated auto-mapping solution that rivals some of the more expensive ($3000~) built-in car GPS systems while also giving you the convenience of a hand-held GPS unit.

Clients have also made extensive use of our MapBlast support. MapBlast.COM is an internet map server that also provides door-to-door routing. With GPSy, you can easily upload these map routes to your handheld GPS units, most of which cannot door-to-door route themselves. This is a perfect companion for planning road trips. Just upload your daily route each morning before you head out for the day.

To create a $200-$400 GPS car navigation solution:

• Download and purchase GPSy^TM on-line.
• Obtain digital maps from any of of many digital map vendors or use an internet mapping server
• Purchase a compatible GPS unit. The Garmin GPS III+ (~$370), II+ ($250), and 12 ($175) are all highly ranked on our GPS unit recommendations page. We have a list of GPS resellers and instructions on how to make your own Mac GPS data cable.

With GPSy and a Ricochet radio-internet modem strapped to your PowerBook, not only can you get real-time Internet DGPS-IP data corrections removing SA and giving a real-time <10 meter accuracy; view your location using multiple GPSyLinked Internet Map Servers; but you can also export your current location to a HTML web file. Using Personal Web Sharing, anyone can view your current location. Ideal for vehicle tracking or remote position monitoring.

Selective Availability Cancellation:

GPSy support Internet DGPS-IP data corrections from free DGPS-IP servers for meter-accurate real-time solutions. In addition, if the navigational unit is in a stable location, GPSy^TM can calculate the average static position over time. This will cancel the cumulative effects of the government-induced Selective Availability (SA). You will need at least an hour of calculating the average in order to cancel out the effects. You can reach about a 10-meter (30 foot) static solution using this option or meter-accurate combined with DGPS-IP. The length of the data sample; sample size n; standard deviation; and the average dilution of precision (DOP) are also calculated, thus giving you an index into the sample accuracy.

For screenshots of display panels, menus, and so forth, please see our screenshots page.