Russia Tourist Visa issued to foreigners who enter Russia temporarily for tourism, sightseeing, visit family/friend or other private purposes. Tourist visas are issued for a duration of stay up to 30 days. Single entry, double entry tourist visas are available, multiple-entry visas are available for tourist visa. A double entry tourist visa cannot be issued for two separate trips to Russia with a return travel to the home country in between. Total period of validity of a double entry tourist visa cannot extend 30 days.
If you stay in Russia more than 3 days. Your visa must be registered with PVU within three business days of your arrival in Russia, and again each time you move city.

Russia Business Visa issued to foreigners who enter Russia for business visit, take part in negotiations, possess signed business contracts or visit companies or make commercial contacts. Single entry, double entry and multiple-entry visa are available for business visa.
Your visa must be registered with PVU within three business days of your arrival in Russia, and again each time you move city.

Russia Homestay Visa also know as Visitor visa. Issued to foreigners who have relatives or friends in Russia, and after enter Russia staying with them, rather than staying at a hotel. For Homestay visa, the period of validity is from one to three months, and the visas have only one entry. Your host in Russia will need to apply for an official invitation (IZVESHCHENIE) on your behalf from Russian local authorities (OVIR).