A unique service that offers a number of projects on transactions for the purchase of investments, with low minimum threshold for the investor. Wishing to increase the capital available to invest on one's own account and manage their income, or transfer their shares in trust, securing a stable income. Technical features of the project: Realize a sophisticated business logic of management and trade assets (lots), which requires a high-quality and full test coverage. In the system there is a large amount of text information (news, wiki-article), for easy navigation and seo is written a full-text search module. Also, for each news and wiki-article is realized functionality of automatic links to other similar articles and news by their name founded in the text. Due to the complex business logic in the project presents the service to work with the data in the background (sidekiq), which handles the huge amount of data on trade and asset management of users. Uses API of different services to obtain financial information (moex API, cbr.ru API) and API of social networks. Crolio allows users to manage their money rationally, invest in a variety of higher-yielding assets, trust him manage of their finances. The result is a system that integrates its most convenient features for a user’s profit, saving him time.