The best replacement for appsync is installous.

The best alternatives to appsync are rated as following:
★★★★★  installous
★★★★  replication manager
★★★  appcake
  vshare

Your alternative for appsync is not listed? Suggest!
Speaking about appsync, one probably shouldn't forget about installous.

Other search terms related to appsync and their ratings are:
★★★★★ installous
★★ appcake
★ ifunbox
vshare
You have in mind a companion for appsync and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of appsync in all years. Click on graph for more.
appsync
installous
replication manager