How does your company manage to use Stripe and Paypal for microtransactions with their fees? Do you get a special discount? 25 cents - minus fees means there's barely any left.
PayPal's micropayments price is 5% + $.05 and is designed for merchants who process low-value transactions (typically under $10 in value). The micropayments rate is available to all merchants and in all countries where Business accounts are available. If you sign up for micropayments, you will be charged the micropayments rate on all transactions regardless of payment size.
From PayPal: https://www.paypal.com/us/selfhelp/article/what-are-micropay...
The first four pages are $1, which I'm assuming is partly to cover that issue of their charge getting eaten up by payment fees.
The top payment processors all have a fixed component to their fees - we just absorb it into our pricing structure.