One of my best friends is South African and he helped me pick out the best of the Cape Town apps.
Capetown City Guide
A free travel guide for Cape Town including activities and sites, tours, food and drink, nightlife, shopping, and things to know before you travel there. Has transportation and city maps and it all works offline. Recommend.
Cape Town Photos
Beautiful, colorful photos of the city of Cape Town, South Africa.
Offline Map Cape Town, SA
This app costs ~US$3.68 and is just what it says it is – an offline map of Cape Town, South Africa. It’s also got an index for easy searching of hotels, restaurants, museums, sites, shopping, etc. It is searchable and also has an alphabetical street index.
Africa’s Natural Beauty and Hi
Beautiful photos of Africa with a focus on Cape Town.
Cape Town NOMADA Maps
This offline collection of maps and sites for Cape Town costs ~US$2.94 and has some neat features like favorites and sharing via SMS, social networks and email. You can d/l points of interest and maps for offline viewing.