Here is the short answer

Pick Shottr when you work with still screenshots. It can read text, check colors, measure pixels, and add many kinds of marks.

Pick GifJot when you need to show motion. It records part of your screen as a GIF. Then you can paste it into a bug report, help doc, or chat.

What each app does

What you needShottrGifJot
A short GIF of your screenMakes simple before-and-after GIFsRecords real motion as a GIF
A long screenshotYesYes
Tools for text, color, and pixelsMany toolsNot built for this
Add notesMany tools for still imagesSimple tools for PNGs and GIFs
Share your fileSave it or send it to your own S3 storageSave it on your Mac or copy it

Try GifJot if you

  • Add short GIFs to bug reports.
  • Show one step in a help reply.
  • Need motion more than pixel tools.
  • Want a free app with no account or upload.

Stay with Shottr if you

Need to measure screens, copy colors, read text, or make still images look polished. Shottr is better at those jobs.

The simple choice is this: use Shottr to study a still image. Use GifJot to show what happened.

Sources