The best replacement for timecode is genlock.

The best alternatives to timecode are rated as following:
★★★★★  genlock
★★★★  midi
★★  timecode

Your alternative for timecode is not listed? Suggest!
Speaking about timecode, one probably shouldn't forget about traktor pro.

Other search terms related to timecode and their ratings are:
★★★★★ traktor pro
★★★★★ traktor pro 2
★★★ final cut pro
You have in mind a companion for timecode and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of timecode in all years. Click on graph for more.
timecode
genlock
midi