Drag a band across a screenshot and that strip disappears — the two halves slide together with no visible edit. Then circle things, point at them, and add notes that are actually readable.
Works offline. Nothing is uploaded — every pixel stays on your phone.
Options
Cutting
1 finger drag = draw the band · 2 fingers = pan & zoom · drag a band edge to fine-tune ·
arrows nudge 1 px · Cut out removes it. Repeat as often as you like.
Marking up
Pick Box, Circle or Arrow and drag to draw it. Pick Text and tap where the note goes.
Tap any mark to select it, then drag it to move, drag its corner to resize, or use the
colour dots. On a text note the corner changes the font size and the box re-fits itself —
padding, corners and all. Nothing is baked in until you Save, so you can move and
recolour marks for as long as you like.