What if you can't afford a spy kit??

What if you can't afford a spy kit, or want to try one for free,
Are there links to Adplexity or Anstrex? Even at a discount, I can't stand the price. I just started

I am currently making a pop promotion for human beings, of course, the mobile phone side and the computer side should be promoted.
So which of the Adplexity series Native, Desktop, Mobile, Push, YouTube, adult should you buy?