I just don't understand why developers underprice their apps so much. You're talking about an app that people are constantly raving about, and that people use for multiple hours per day. Charge $5/month, that's half the price of Netflix or Disney+.
$5 is not an insignificant amount to a lot of people all over the world, including Europe and maybe the US. Especially when every single app and service wants you to subscribe to them now, I've heard plenty of people saying they're going to cancel their Netflix subscription when password sharing stops working.
344 requests per day is not worth $5 per month for the average user.
Netflix has introduced ad-supported tiers where you pay less. That’s the same here, those users can use the website or first-party app.
According to the Apollo dev, the average user would cost $2.50/month in API fees. I imagine power users would be substantially more costly, so $5/month would not cover the API + apple tax for just themselves, let alone supporting the regular users.