Engineering Magic®

Apple Approved
Bad Elf's accessories meet the requirements of  Apple's MFi program.  Our engineering team tests extensively with each new product release of the iPhone, iPad, and iPod touch.
Apps Galore
Developers with deep domain expertise and great design acumen combine Bad Elf and Apple devices to create the ultimate user experience.  See the list.
No Cellular Required
Our products provide rock-solid GPS to iPhone, iPad, and iPod Touch to allow you to see your GPS position in any app on the App Store.


ALERT: Issue prevents Bluetooth connectivity with more than two iOS 10 devices

October 13, 2016

Summary: If you need to connect more than two iOS devices simultaneously to your Bad Elf GPS receiver, avoid upgrading to iOS 10 if you have not already done so. After several customer reports we've verified that there is an issue preventing more than two devices running iOS 10 from connecting simultaneously to a single Bad Elf GPS receiver. This affects all of our Bluetooth GPS receivers, as well as those from other manufacturers. Some additional notes: The Bluetooth status screen on our LCD will show "(MAX)" when this situation is encountered. Devices running iOS 7, iOS 8, and iOS 9 are not affected. Devices running Windows or Android are not affected. We've submitted a bug report to Apple and are working with...

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Announcement: New Bad Elf App and Firmware for the GNSS Surveyor Accessory (Post-Processing and DGPS Support)

September 13, 2016

We designed and built the Bad Elf GNSS Surveyor to provide affordable mapping-grade accuracy of about 1 meter when used with SBAS and PPP. The Surveyor has reliably achieved accuracy better than traditional external GNSS accessories. After careful research and rigorous testing, we have enhanced the GNSS Surveyor to expose some of the additional capabilities of this very capable accessory.Last week we released two major new features: high-accuracy raw data collection for post-processing and support for real-time Differential Global Positioning System (DGPS) corrections via our app’s built-in NTRIP client. To access these additional capabilities, download the latest app from iTunes and then follow the in-app instructions to upgrade the firmware on your GNSS Surveyor. Post-processing - Getting Accuracy Below 1...

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