July 19, 2016
Freefall Data Systems LLC is founded by Casey Mongoven (D-33972) in Lompoc, California.
Our primary focus has always been the improvement of a skydiver's altitude awareness.
Freefall Data Systems LLC was founded in 2016 by CEO Casey Mongoven (D‑33972) in Lompoc, California, and relocated to Lutz, Florida in 2025. Casey designs all hardware and software for FDS products.
The majority of his 6,000 jumps have come as a USPA Coach Examiner, Tandem Instructor, and AFF Instructor, and he currently jumps camera for the 4‑way team Z‑Hills Door Blockerz.
FDS is an American company—every product is manufactured and thoroughly tested at the production facility in Lutz, Florida.
Our timeline
December 18, 2017
The world's first Bluetooth® skydiving altimeters, ColorAlti® and SonoAlti®, are released.
September 10, 2018
ColorAlti becomes the first skydiving altimeter with visor-mounted lights (StickyLights).
February 6, 2019
ColorAlti wins the first STAR Award in the category of Jumper Experience at the Parachute Industry Symposium in Dallas, Texas.
April 23, 2019
ColorAlti technology is officially patented (US Patent No. 10,267,630 B2).
March 6, 2020
FDS Logbook is released, the first skydiving logbook to feature social media capabilities such as tagging friends on jumps.
October 6, 2020
DigiAlti is released, a novel wrist-mounted altimeter combining ColorAlti technology with a numeric digital display that redefined the wrist-mounted altimeter as a signaling device as opposed to just an indicator.
December 25, 2020
SonoAlti 2V is released, becoming the first speaking altimeter to allow custom notifications (e.g. “breakoff” or “downwind leg”) in addition to altitude announcements.
August 28, 2021
RigidLight becomes the first LED-indicator light that screws into the visor.
June 22, 2023
FDS Logbook is deemed by the USPA to be in compliance with the requirements for digital logging outlined in the SIM Section 3-1.
February 6, 2025
Freefall Data Systems LLC relocates to Lutz, Florida.
February 26, 2026
VoxAlti™ is introduced—a synthesis of three previous generations of speaking audible altimeters.
June 19, 2026
A complete rewrite of FDS Logbook is released with richer statistics, enhanced social media features, and more intuitive navigation.
August 14, 2026
MetaAlti is introduced—the first skydiving altimeter to integrate three separate methods of altitude indication into a single device: speaking, synthesized audible tones, and peripheral-vision LEDs.