One of the App Store Foundation's goal is to make AppCoins available for everyone, and that's why users that don't own APPC can make payments with credit cards.

Below you can see a live log of express conversion exchange transactions. Every time a user makes an in-app purchase with a credit card, we will convert the fiat currency into APPC via (Conversion). Those APPC will then be transferred to the BDS account (Withdrawal). You can see all of these transactions in this page.

Time APPC Bought ETH Cost Exchange Rate
2018-Dec-12 06:59pm 26 0.011193 0.000431
2018-Dec-12 06:57pm 26 0.011206 0.000431
2018-Dec-12 04:32pm 512 0.2205263 0.000431
2018-Dec-12 09:06am 27 0.0114966 0.000426
2018-Dec-12 09:02am 197 0.0835779 0.000424
2018-Dec-12 07:00am 264 0.11247 0.000426
2018-Dec-12 05:30am 51 0.0217923 0.000427
2018-Dec-11 04:18pm 2648 1.1338032 0.000428
2018-Dec-11 04:08pm 1324 0.5655284 0.000427
2018-Dec-11 08:52am 26 0.0111826 0.00043

From October 1st, the App Store Foundation has an Incentives Program available for developers that integrate APPC billing system. With a 10,000 APPC reward at the moment of integrating and a weekly reward of 125,000 APPC, it’s a great opportunity for developers to see the advantages of distributing and monetizing apps through blockchain technology.