I *think* I've used snapseed a few times on mobile? I don't think I recall much about it. I just googled images of the user interface, and it looks superficially similar. Hard to say, really. What i use on Polarr most are...
- Radial filters, which give you exposure, lows, highs, clarity, saturation, vibrance, warmth, and a few others.
- Graduated filters, offering the same controls.
- Dehazing, RBG curves, denoising, sharpening, and other common global edits
- individual color controls, allowing you to saturate / tint / brighten-darken 8 individual colors
- Exporting directly to Box etc
And then I can create and save presets, which saves TON of time. Once I get into a batch from one place, I figure out the basic edits and save/name them. Then each new pic starts off 90% of the way to done, sometimes 100%. It's pretty robust, and I paid $20 once to have access forever.