Key Collector Comics Mobile App VS HalftonePro

I feel like it's time to downsize the collection. For selection purposes, is looking up books in the https://keycollectorcomics.com/ and Comic Books Key Issues - GoCollect websites good enough for deciding what might be worth keeping? I have 5 long boxes of the titles I care about, and I figure the other 5 can go. Source: 11 months ago

If you're just starting out collecting, I recommend finding a couple on-going series that interest you and work on filling out the back catalog for those. As you read more comics you'll start identifying writers and artists that you like, which can send you down a rabbit hole, and you'll pick up references to older storylines that you can try and hunt down. If you're collecting for the sake of collecting rather... Source: about 1 year ago

Most of the notes are from keycollectorcomics.com. Source: over 1 year ago

I am by no means doing this with real hopes of getting rich, but keycollectorcomics.com has been my source lately. The subscriber additions sound helpful, but I havent signed up for that yet. Source: almost 3 years ago

You can do it easily on https://halftonepro.com but I think I payed a $10 one off fee for a log in - there might be a free trial. Source: almost 2 years ago