The best replacement for picsart is pixlr express.

The best alternatives to picsart are rated as following:
★★★★★  pixlr express
★★★★  snapseed
★★★★  aviary
★★★  pixlr
★★  camera 360
★★  picsay
★  pixlr o matic
★  cymera
  picsplay

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

Other search terms related to picsart and their ratings are:
★★★★★ overlays
You have in mind a companion for picsart and it is not yet here? Propose!



Google Trends

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picsart
pixlr express
snapseed