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ishare vs Flameshot: catalog facts
ishare	Flameshot
Free Free and open source under the GPL-3.0 licence.	Free Free and open source; no paid version.
macOS	Windows, macOS, Linux, Command line
Captures a custom region or a single window Installs with a single Homebrew command	In-place editing: arrows, highlight, blur or pixelate, text, shapes and counters on the selection itself Customisable interface colour, button selection, shortcuts and save behaviour
macOS only No versioned releases published on GitHub	On Wayland it needs the right portal or compositor support, which varies by desktop No built-in video or GIF recording
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 20, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.