Guinea has introduced an electronic visa, also called e-visa to facilitate entry into its territory. The new service enables people to apply for a visa to Guinea from the comfort of their own home or office. Please refer to the Visa Application guidelines here
Note: The online application of eVisa does not entitle the visa. Your request can be accepted or rejected by the Authority and there will be no refund. The administrative costs incurred for the processing of your application. The amount paid is kept by the administration, even in cases where visas are denied.
Information Source: https://www.paf.gov.gn/