What are the visa & residency requirements in South Africa?

"In order to visit South Africa, visitors must obtain a visa prior to their arrival. The process of applying for a visa involves submitting an application form, providing a valid passport, and paying the applicable visa fee. Depending on the purpose of the visit, additional documents may be required. In order to obtain residency in South Africa, applicants must submit an application form, provide a valid passport, and pay the applicable fee. Depending on the purpose of the residency, additional documents may be required. Additionally, applicants may be required to provide proof of financial means, a medical certificate, and a police clearance certificate. Once the application is approved, the applicant will be issued a residence permit," remarked another expat in South Africa.