There is no support for Afrikaans.
http://www.nuance.com/ucmprod/groups/dragon/@web-enus/documents/collateral/nc_017505.pdf :
Dragon Naturally Speaking is available in a number of languages and supports multiple accents as well:
Languages
- English
- French
- German
- Spanish
- Italian
- Dutch
Accents
- Standard
- Australian accented English
- British accented English
- Indian accented English
- Inland Northern US (Great Lakes area)
- Southern Asian accented English
- Southern US
- Spanish accented English
Dragon Dictate for Mac is available in a number of languages and supports multiple accents as well:
Languages
- English
- French
- German
- Italian
Accents
- American
- American – Inland Northern
- American – Southern
- American – Teens
- Australian
- British
- Indian
- Latino
- Southeast Asian
Note that OS X Yosemite ships with 24 new dictation languages:
Arabic - Saudi Arabia Catalan - Spain Croatian - Croatia Czech - Czech Republic Danish - Denmark Dutch - Netherlands Finnish - Finland Greek - Greece Hebrew - Israel Hungarian - Hungary Indonesian - Indonesia Malay - Malaysia Norwegian Bokmal - Norway Polish - Poland Portuguese - Brazil - Portugal Romanian - Romania Russian - Russia Slovak - Slovakia Swedish - Sweden Thai - Thailand Turkish - Turkey Ukrainian - Ukraine Vietnamese - Vietnam