Is there an image version of this app?

You might be able to use a cloudron whiteboard application, or one in Nextcloud, to edit images. Claude AI suggests that:

There's no direct equivalent to Clapshot specifically for image editing and commenting. However, there are a few options for achieving similar functionality:

Use an image annotation tool: There are various online and offline tools for annotating images, like Labelbox, SuperAnnotate, RectLabel, etc. These allow you to draw boxes, semantic segments, transcribe text, and add comments or labels directly on images. The data is then exportable for analysis.

Adapt Clapshot: While clapshot is focused on video, it may be possible to modify it or build on top of it to also support images. Some possibilities:

Enable uploading images and add drawing/text boxes for annotations over them

Extract keyframes from video as images and allow annotations - this already captures the commenting functionality

Output annotated frames from video as annotated images

Build custom integration: You could integrate an existing image editor and tie it together with a commenting tool. For example, use Photopea for image editing and Commento for comments. Then link images to their comment threads in your app.

Leverage collaborative drawing tools: Some whiteboard type apps allow collaborative annotation which could replicate clapshot for images. For example, Miro, MURAL, Conceptboard, etc. Upload an image and have team members annotate regions and add comments.

The open-source nature of clapshot makes it very customizable, so extending it or integrating it into an image-based workflow seems quite feasible.