It's not that bad. With Perfect Memory AI I see ~9GB a month. That's 108 GB/year. HDD/SSDs are getting bigger than that every year. The storage also varies by what you do, your workflow and display resolution. Here's an article I wrote on my finding of storage requirements. https://www.perfectmemory.ai/support/storage-resources/stora...
And if you want to use the data for LLM only, then you don't need to store the screenshots at all. Then it's ~ 15MB a month
The funny thing is Apple even have a support article on how to do this (and actually say in it "may improve your performance") I literally followed it step by step and it was very easy and had no issues.
Shipped to the UK for me added a bit to the overall price with shipping and import duty but it was still better value for money and hugely reliable brand than anything I could have bought domestically.
Except that Rewind uses chatGPT whereas this runs entirely locally. I would like to note though that Anonymous Analytics are enabled as well as auto-updates, both of which I disabled for privacy reasons. Encryption is also disabled by default. I just blocked everything with my firewall for peace of mind :)
Most screenshots are of the application window in the foreground, so unless your application spans all monitors, there is no significant overhead with multiple monitors. DPI on the other hand has a significant impact. The text is finer, taking more pixels...
I’m not sure if the above product does this, but you could use a multimodal model to extract descriptions of the screenshots and store those in a vector database with embeddings.
And if you want to use the data for LLM only, then you don't need to store the screenshots at all. Then it's ~ 15MB a month