Evernote = Evernote is a fantastic, innovative app that can be used to improve and expand your personal productivity. Evernote allows you to take notes in a variety of formats - PDF, audio, sketch, typed. It also helps your searching ability by including pictures in a search. For example if you search 'job' it will load pictures of a job sign you have taken a photo of, etc.

Google Calendar = While it might seem a little basic, Google Calendar is a popular app that allows you to input events, dates and appointments. You can also share these inputs with friends/colleagues and invite them to the event. You can colour code your events in order of importance and you can also sync your calendar to multiple devices. Google Calendar also has a feature which allows you to receive email notifications a day, a week or even a month in advance - meaning you'll never miss an occasion!

Todoist - One of the most popular apps on the market at the moment, Todoist really is a brilliant productivity resource. With Todoist, you can use its native language feature, and assign tasks to other people. If you upgrade to a paid service, you can add comments to tasks, get reminders and also use labels and filters. Todoist also has a Business feature which allows you to use it in the office, if you wish.