Yes, both SlashDreamer and ShortPixel offer a Free Trial.
SlashDreamer is designed for Large Enterprises, Medium Business and Small Business.
ShortPixel is designed for Large Enterprises, Medium Business and Small Business.
Pricing for SlashDreamer Starts at $4.99/Month whereas for ShortPixel Starts at $3.99/Month when Billed Yearly.
Some top alternatives to SlashDreamer includes Imagekit.io, ShortPixel, imgix, image4io, EWWW Image, TinyIMG, VanceAI, TwicPics and Upscale.media.
Some top alternatives to ShortPixel includes OptiMole, Cloudimage.io, Imagify, imgix, ImageOptim API, EWWW Image, ShortPixel Google Drive Optimizer, OptimizeImages, ImageBoss, IPS.Photos and LibPixel.