Your pricing is a bit weird though. For a $9 subscription a year, I might as well upgrade my gmail storage to 100gb.
The pay-as-you-go is $0.01 per email, but I don't know how many emails with attachment I have in there. Gmail only tells me of "many". Could be tens of thousands... I have no idea...
I have 250 emails with attachment since June, so a bit less than 100 per month, and I 've had that inbox since 2004 ish. So conservatively, I have 1200 emails a year, so about 25k emails to clean up. So that would be a one time fee of $24. But perhaps much less because attachments were rarer back then.
But I could also pay a one year subscription. Only use it once to clean up the whole thing, and then cancel and come back the next time I need it, like in 5 years. But yeah, I don't really want to do that, cause I don't want to forget that it's a subscription...
What I would like is a usage-based price, that's based off the inbox size in gb and that's quite cheaper than upgrading my gmail.
So maybe cleaning 15gb for $15 would be great. Or maybe $2 for each gb that's freed (I wouldn't know how much exactly that would cost, but I know it'd less that $30).