Accounting is something that is required for most businesses. In larger companies, there are full departments tracking the expenses for a company but for a smaller company, there are several options. One of the more popular options is to do some of the major accounting with a software from Intuit like Quickbooks and then consult an accountant for more detailed work. However, Quickbooks is also complicated and so there have been companies out there that enable the company to do their own accounting on the cloud for low or no cost.
Freshbooks: Do all your accounting in the cloud. The big advantage is that there is no software to track, install or update and you can do your accounting anywhere. They have several options including the ability to do it with a mobile phone. Look up the link below for more options.
Outright.com: Outright is also in the cloud with the additional advantage that they have a free version that includes almost all features including the ability to import the data from your various bank accounts and credit cards. This enables most companies to do their accounting easily and cheaply.
Check out the software.