Bitrix24 Bitriks24 is a system of enterprise management from 1C-Bitrix company. At the moment, this is the best solution for small businesses in terms of price / quality. There is everything you need: tasks, execution control, accounts, contracts, documents, and even IP-telephony! You can also write your own extensions for Bitriks24 without limiting the functionality provided. You can find more information here, as well as on the developer's site
Compare prices