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# Comparing Open Source and Closed Source Operating Systems ## iOS (Closed Source) * Developers only have access to APIs, which are calls to the OS * Apps must be tested and approved before being sold in the app store. * Better assurance of high quality apps. * Centralized app purchasing ## Andro...
# Comparing Open Source and Closed Source Operating Systems ## iOS (Closed Source) * Developers only have access to APIs, which are calls to the OS * Apps must be tested and approved before being sold in the app store. * Better assurance of high quality apps. * Centralized app purchasing ## Android (Open Source) * Android apps can be obtained from many sources. * No assurance of quality. * Market is not always convenient for developers. * Many variations of Android exist, creating incompatibilities.