What are great apps/tools under $10?

I'd pick Evernote. It is the first ever app that I have paid for. Love the fact that it serves as a place for me to make notes, to-do lists, and save links. It syncs well with my Android and iOS devices, my Kindle Fire and my PC.

I really like NoteLedge - it's one of the few apps I pay for and don't mind paying for. I use it fairly often (at least several timer per week), for taking notes, organizing my web and digital content, brainstorming and creating to-do lsits for the week. The app is quite intuitive, so it's not difficult to learn how to use. It's also possible to sketch/draw - if you have a tablet or a surface suitable for working with a stylus. I recommend this app for students who want to take good notes and to people who want to keep their digital content organized and well-managed.

Their adds are an extreme nuance when working out or sprinting to finish a project, well worth the money for spotify premium.