help

I personally use ibispaint x. It's free and has minimal ads. Watching a 30-second ad gets you 18 hours of free use for any would-be-paid brushes, which should be plenty for a single drawing.
some bits are a bit confusing, but that's 80% because I ignored the tutorial, and 20% me never really needing those features. Overall, good app, it's what I'm used to, and I suck at using just about everything else.

others also told me to check ibis out, so yeah when i get home i'll download it (if i don't forget)

Kleki

how good is it? like, what features are available and etc

-Lock Alpha
-Layers
-Sharpen, Triangle Blur, To Alpha, Grid, Noise, Hue / Saturation, Bright / Contrast, Distort, Invert, Curves, Tilt Shift, Pattern, Vanish Point
-Color Picker
-Bucket, Gradient, Brush (7 types), Shapes, Text
-Stabilizer
-Flip, Perspective, Crop / Extend, Rotate, Transform, Resize
-1 x 1 - 2048 x 2048 Canvas

- alpha as in "a fancy way of saying transparency", right???
- nice
- sharpen is cool, triangle blur??? to alpha??? vanish point??? the rest are essentials that even dumb me knows
- color picker is a required thing or i'm never using it, so all good
- stabilizer? wot
- all W features
- decent canvas size
so, ik most of the essential/basic stuff, but what about the rest?
this might be my choice unless something gets in the way (the super goofy sounding name might just be the only (minor) thing tbh)

The good ol' Ibis paint.

is it available for free for both ios and w10?

Yes it is. Plus you can sync your drawings

wdym by that?

Connect to the same social network account on PC and mobile, activate sync, and you can continue the drawings of mobile on PC and the PC drawings on mobile.

hmm
cool feature, but no thanks, sorry
i'll just send it over via good old email

ibis paint

Media bang paint

clipstudio

peak

I use FlipaClip
If you know how to use it well you can make almost anything. Minimal ads too