Motion on the board, not behind a click
Out of the box the board is a wall of posters and only the card under your cursor plays, after a short pause, so nothing flares up while you sweep across. A dropdown in the toolbar changes that: off, hover, or four, eight or sixteen at once. Four and eight mean exactly that; choose all and you get the sixteen nearest the middle of your view. A card too small to read, under forty pixels wide on screen, does not start at all. There is no sound out here on the canvas.
Put it where it belongs, then straighten it
The canvas has no edges. Drag a card anywhere; drop it mostly on top of another and it slides itself out to the nearest clear space, so nothing ends up buried under anything. One handle in the bottom-right corner resizes a card, down to sixty pixels and no further; the zoom bar runs from five per cent to two hundred and fifty; and every board remembers its own pan and zoom, so switching back returns you where you were. Arrange packs the whole board into rows in one click and never touches a size you set by hand.
Full screen when the detail matters
Click a card and it fills the window. A clip saved on your Mac plays there with proper controls — it starts, it loops, and here you can scrub, which the board does not let you do. A YouTube card plays in YouTube's own player instead. Multi-image posts page with the arrow keys, three of eight. Underneath sit the title, the author linked to the original, the track, and the whole caption, which lives here and nowhere else. The board pauses while the player is open and picks up when you close it.
Say what a group is with a note
Two tools sit in the dock at the bottom left: select, and text. Pick T, click the canvas, type, and the note is there. A bar over it offers a font, a size and a colour from a palette or a picker of your own. Notes select together with cards, so a heading and the frames beneath it drag as one block — and notes travel with a board you publish, where a note above a group reads as that group's heading on a phone.
One price, and nothing after it
$30 once. Updates are free for good, there is no renewal date, and nothing here stops working. For macOS on Apple Silicon.
The whole of it, feature by feature, is in the manual — including what ReelPile does not do, which is worth reading before you buy rather than after.