Whether you're an entrepreneur or not, we all have the same 24 hours in a day. How we spend those hours can mean the difference between a profitable or productive day versus one where we're wondering where the time went.

Mobile apps are trying to tackle this issue and research shows they've changed the way we work and communicate. The more we find satisfaction with their use and they become a habit, the more we use them and find them indispensable in our daily lives.

Being organized and focused can be helpful and while this isn't an exhaustive list, these 19 apps have been instrumental in keeping me organized, teaching me new things, staying focused, and even saving me money and time.

1. Slack. Saves my email inbox from unnecessary emails while also keeping my projects organized.

2. Toggl. As a consultant, I have to keep tabs on how much time I work on projects. Even when I don't need to track my time, this app helps me get a better handle on how much projects or writing assignments take so I can provide more accurate estimates during proposal time.

3. RescueTime. It wasn't until I installed this app on my phone and desktop that I realized how much time I was wasting on social media. Use this if you want to have an idea of where your time is being spent while on your devices.

4. Headspace. Without fail, this has to be one of my favorite new apps of the year. As someone who couldn't sit still to meditate for half an hour or an hour, this gave me permission to meditate for as short as 10 minutes and it still be effective. And since it's on my phone, I can do it anywhere and anytime. After using it for two months straight, I can say with absolute certainty that it has changed my outlook for the better.

5. Podcasts. Find ones you love and tune in.

6. Trello. A great way to manage projects.

7. Wave. Several friends swear by this app because it helps them quickly invoice and keep track of their finances.

8. MasterClass. For those of us who wish we could continue to take classes year-round, MasterClass allows you to learn from the best in their respective industry on your time.

9. Freedcamp. Great for keeping a to-do list.

10. Unroll.me. Unsubscribe from email subscriptions you don't want and just clutter your in-box. While it's not available as an app, SaneBox is another great option.

11. Hatch. If you believe an egg timer can help you stay focused, try Hatch. Set a timer from as short as 5 minutes to as long as 120 minutes.

12.  Audible. Catch up on some of the latest tomes while commuting or waiting in line.

13. Your Public Library. Most local libraries now offer an app where you can place books on hold, read magazines on your devices or download audiobooks. For free. As a proud card-carrying member of the Chicago Public Library, this is one of my favorite apps because it's so easy to use and saves me hundreds of dollars annually.

14. Pocket. Find an article you want to read but don't have the time? Save it in Pocket and come back to it when you have a few minutes.

15. Dropbox. An easy-to-use app that helps you keep it all organized and easy to access in the cloud.

16. Evernote. A great way to save files, documents, emails and more.

17. Grammarly. Never send an email with a typo again.

18. Skype. Makes it easy to connect with anyone around the world.

19. Canva. Need an infographic or flyer? Canva helps non-designers develop great-looking products for everything from social media and presentations to invitations.