Read this first. If you grab a screenshot, draw a box or an arrow on it, and send it — Greenshot does that well, costs nothing, and there is no reason to change. Close this page. Nobody should pay for software that solves a problem they do not have.
The three places people hit a wall
The complaints that bring people looking for something else are consistent, and they are all about what happens after the capture.
1. The annotations stop being editable. You drew six arrows and a box, exported the PNG, and next week the button moved. The arrows are now part of the picture, so the fix is redoing all six. This is not a Greenshot flaw so much as a design choice — it draws into the image — but it is the wall people hit first when they produce documentation regularly.
2. There is no scrolling capture. A long settings page, a chat thread, a tall invoice: Greenshot captures what fits on screen. For web pages your browser already solves this by itself (here is how, no software needed). For a desktop application it does not.
3. Numbered steps are manual. A step-by-step guide needs markers 1 to 7, consistently sized, and renumbered when you insert a step in the middle. Assembling those out of circles and text boxes works exactly once, and then you change the order.
What paying adds
Screen Slinger is our tool, and it addresses those three specifically:
- Every annotation stays an object. The undo history is saved with the file, so reopening it next month means dragging the arrow rather than redrawing it.
- Scrolling capture for anything, browser or not.
- Auto-numbered step markers that renumber themselves when you delete one from the middle, plus speech-bubble callouts.
- Saved tool presets, which is what keeps image 14 of a guide looking like image 1.
- A Hebrew interface with full right-to-left layout as part of the product. Greenshot does have a Hebrew translation among its 30-plus community languages, so this is a difference of kind rather than of existence.
And what Greenshot has that we do not
- It is free. That is not a small thing and we are not going to pretend otherwise.
- Open source, so you can read it, audit it and keep it running forever.
- OCR, through a plugin — Screen Slinger has none at all.
- A tiny footprint. Greenshot is a few megabytes; our self-contained build is about 69.
The honest way to decide
Not by comparing feature lists. Ask instead: how much of last month did you spend redoing annotations you had already made once? If the answer is "none", stay where you are. If the answer made you wince, the trial is 30 days with everything unlocked, no account and no card — and the fair test is to rebuild one guide you have already made in Greenshot and see how long it takes the second time.
Greenshot is the trademark of its owners and is free, open-source software; the name is used here solely to identify the product being compared. Screen Slinger is not affiliated with it. The wider comparison — Snagit, ShareX, Lightshot, PicPick — is here, and if the subscription question is what brought you, the Snagit page is more relevant.