Each year, thousands of companies launch with the hopes of creating the next great product. While some of them will end up making it big, the majority won’t be so lucky. Here are 10 of the most innovative apps in 2015 so far. Some have just launched while others have already established themselves in the marketplace.

Line

Have you ever wondered how the use of emojis became so popular? There is a good chance that it was because of the app Line. Founded in 2011, Line now has over 170 million active users worldwide. This mobile messaging app lets users send and receive messages with friends, make voice and video calls and exchange thousands of different emotion stickers.

In 2014, the company reported revenue of $656 million, mostly from games, digital stickers, marketing deals and merchandise. It is believed that the company is close to announcing plans for an IPO.

Timehop

Founded in 2011 at the first ever Foursquare Hackathon, Timehop allows its users to see what they were posting on social media on a specific day in years past. The app is opened over 3 million times per day, which proves that people love to look at their lives. The company went through a $10 million Series B round of funding in 2014, bringing its total investment up to $14.1 million.

Venmo

Venmo has been around since 2009, but it is changing the way people pay others back. No longer is there a need to write someone a check for covering your part of a bill. You can now simply log into the Venmo app and transfer the money without incurring any fees. If you want to use a credit card instead of a checking account, there is a 3% surcharge added to the transaction.

One of the best parts of the service is that there is no wait to get your money. Instead of the three to four day wait with eBay’s (EBAY) Paypal, you will receive your money in your checking account one business day after cashing out.

Storyful

The Internet is full of information, and, at times, it can be tough to filter out the truth amid so many fabricated stories. Storyful uses not only technology but also its staff to sort out the worthwhile news. 21st Century Fox (FOXA), formerly known as News Corp, acquired Storyful in 2013 for $25 million. In 2014, Storyful partnered with Facebook (FB) to launch FB Newswire, a service that digs through user-generated Facebook content and posts credible items.

Hopper

Released earlier this year, Hopper is an app that hopes to help consumers find the cheapest flights possible. The app analyzes data from billions of flights to determine the best time for purchasing a ticket and flying. According to the company, the lowest possible price will only be visible one-third of the time; during the remaining two-thirds, it’s possible to actually get a lower price than what is stated.

Hopper doesn’t want to just be an app that provides available flights and price information. It wants to be a data-driven company that leaves individuals comfortable with their purchases.

Lose It!

Lose It! is a must have app for people looking to hold themselves accountable for their dietary habits. The app lets user tracks the food they eat on a daily basis as well as their weekly calorie intake. Lose It! also monitors users’ carbohydrate to protein to fat ratio. Furthermore, whereas most weight loss apps can’t help users track their meals at restaurants, Lose It! actually integrates menus for many major chain establishments.

Since launching in 2008, Lose It! has signed up over 24 million members and currently has over 3 million active users. Investors seem to love the app as well because it has received $7 million in funding, including an investment from UnitedHealthcare (UNH).

Hop

Hop will automatically turn your new and old emails into natural chat conversations without the subject lines, signatures and the other formalities of email. Messages that you receive from friends, family or colleagues will take priority over anything else.  Hop is essentially iMessage for your email.

8fit

8fit is a fitness app that brings the gym to your home. The app provides workouts and fitness plans that can be done in a living room. The company raised $200,000 in seed money the month after it launched, and it is currently pursuing a Series A round of funding. Since its launch in 2014, the app has been downloaded over 250,000 times on both iOS and Android.

Photomath

If you have ever had trouble solving a math problem, there is now an app that can help you. Photomath will take a photo of a math equation and then solve it in a matter of seconds.  The app was developed in 2014 by microblink, a mobile vision software company.

In January, Photomath was used to solve 8 million different math problems. As of February, the app had been downloaded over 11 million times on iOS and Android.

Twenty20

What originally started as a photo printing service for Instagram photos has now turned into a photo-licensing service that allows individuals to get paid for all the time they spend on Instagram. InstaCanvas rebranded itself in 2013 to become Twenty20. The company now has around 250,000 photographers and over 45 million photographs.

Photographers can sync up their Instagram account, and when someone wants to purchase a photo, they get paid. Photographers will keep 80% from an ala carte purchase or 20% from any subscription. Companies can also hold contests if they are in need of a specific photo. The contest winner will receive 100% of the winning prize.

The Bottom Line

There are thousands of new apps developed every month. Only a handful of them will actually make a lasting impression in our lives. These are 10 apps that will most likely be around for a long time to come.