Totally agree that Reddit are being glorious ass-munching hentais here. I fucking hate all that Reddit has become as a company and as a product. But also, dude just raise your prices. I read the whole announcement and truly don't understand why Apollo can't be $20/year. I don't know anybody who attributes a meaningful difference to $10/year and $20/year. I'm not a user but if I was faced with that type of price chang…
You forgot to factor in other things.
Base API cost: $2.52/mo (0.00024/call @ 345req/day)
App Store Taxes / Fees: $1.08/mo (I doubt he qualifies for the reduced fees at this point)
Just adding the appstore tax makes this $43.20 a year. That doesn't factor in any servers he has to pay for (push notifications). The app dev fee $99 per year, not a huge amount but small parts add up. Add in the cost to pay his server engineer, or any profit for him to live off (likely less users, so has to be more $ per user) of while making the app and it probably goes to something like $60/yr.