Free as Free/Libre Open Source Software.The TicTacSync device is a low cost GPS based hardware/software combo (less than 45 USD per devices) replacement for SMPTE LTC. It automatically syncs audio and video you're shooting and should interest scientists who need to timestamp data recordings within sub-millisecond precision and multicam /dual-system sound videographers who don't want to fork 200 CAD for a syncing program, neither 270 CAD for each recording device to sync (cams, audio recorders); and those who have encountered some limitations of their editing software "waveform analysis syncing". Purchase of pre-flashed kits on [tindie is currently possible](https://www.tindie.com/stores/proflutz/). A FLOSS GUI application is considered for non-dev users (a lot of videographers DONT have a running python installation). Multi-cam synced projects are imported into NLEs with OpenTimeLineIO or synced with metadata timecode. See [project home](http://tictacsync.org) for more details