[shadowgovt]

Google still doesn't make you pay s dollar to write an app on their architecture (only to have it hosted in their store).

[andrekandre]

you also don't need to pay apple for using xcode and building apps for ios either; the 99 dollars is for uploading to appstore or installing to devices for more than 7 days

[shadowgovt]

Using xcode does require paying Apple, unless you've gotten your hands on a free copy of the OS and/or free Apple hardware somehow.