I’ve been using the CarFAX Car Care app/website for a long time but I’m looking for something better.
It would be nice to have something I can enter my car make/model into and have it suggest maintenance but also keep track of repairs. I like uploading PDF scans of receipts too; one thing that always bothered me about Car Care is the horrible, weird compression it does on those files.
for receipts and such paperless ngx is good. that won’t track your repairs or inform of you of likely maintenance problems, but that and a spread sheet sounds like a good start.