We’ve selected these apps based on their quality, user reviews, and overall reliability as a source of support for people who want to hone their triathlete skills. If you want to nominate an app for this list, email us at nominations@healthline.com.

A triathlon is a race consisting of three back-to-back stages of different sport disciplines. The most popular type of triathlon includes running, swimming, and cycling. While the actual lengths of triathlons may differ based on terrain, there are a few main categories. From shortest to longest, these include sprint, Olympic, half-Ironman, and Ironman.

Triathlon participation has grown over the past two decades. According to USA Triathlon (USAT), membership nearly quadrupled between 1999 and 2012. The number of USAT-sanctioned races has also increased, tripling between 2004 and 2014. The competition has becoming particularly more appealing to adults aged 35 to 44 and women.

Training for a triathlon can be time and money intensive. This is perhaps why the median participant income in 2009 was $126,000. However, some resources like blogs and apps can make the sport more affordable. App-based training aids often act as virtual coaches, but they’re much cheaper than hiring a real one. Many offer customized or preplanned workouts to help you achieve your peak performance. Some have built-in social components, offering peer support like that found in group training. And virtual training programs can help you beat the monotony of stationary settings like the gym. Why not give one a try for your next workout?

Here are our picks for the best triathlon apps of the year.

iPhone rating: ★★★★★

Android rating: ★★★★★

Price: Free

TrainingPeaks makes it simple to log runs, swims, and cycles. Easily track key info like speed and distance, and make notes for yourself or coaches. Then assess your performance on key metrics, like peak heart rate and pace, using charts and graphs. The app syncs across devices and is compatible with many fitness trackers and other apps. Of note: A premium subscription is available for in-app purchase. TrainingPeaks is a go-to app for the serious triathlete, whether amateur or pro.

iPhone rating: ★★★★★

Android rating: ★★★★★

Price: $4.99

Created by swim coach Kevin Koskella, Tri Swim Coach may be your virtual trainer. It boasts having everything you need to train for the swim leg of your race. The app offers 12-week swim programs, customizable workout sessions, and drills for success. It also provides special open-water training instruction. Master new techniques or improve your form by watching videos from the demonstration library. Jump in at any level and better your swim skills. You can even reach out to Koskella or the Tri Swim Coach team with lingering questions.

iPhone rating: ★★★★★

Android rating: ★★★★★

Price: Free

RunKeeper is a fantastic app for anyone seeking to track their runs and other activities. Casual joggers and marathon trainees alike can choose from pre-programmed plans or create their own. The simple interface lets you set training goals, measure your distance and pace using GPS, and more. Mid-workout audio status updates help you meet your goals. Integrating with music platforms, fitness trackers, and social media helps you customize your experience. Program reminders to never miss a workout. For added motivation and accountability, form a running group with friends and support one another. Of note: Premium features require a purchase.

iPhone rating: ★★★★★

Price: Free

Sometimes it’s just not possible to get out into the great outdoors for your ride. Now you can bring that experience anywhere you want to train. With virtual videos filmed on bikes in HD, the app transports you to iconic cycling courses. It works with many indoor trainers, adjusting video speed and resistance to match your effort. You can also log rides with other apps like Strava and TrainingPeaks. So go ahead and push yourself on hills that mimic the real road race experience.

iPhone rating: ★★★★★

Android rating: ★★★★★

Price: Free

Strava uses GPS to track your runs, walks, rides, and more. At a glance, view important metrics like heart rate (requires a companion device), distance, pace, and route. The app lets you add notes and photos to your training sessions. It will even highlight nearby clubs where you can train with others. For added inspiration, compete for a spot on the app’s segment leaderboards. Pair with your own fitness tracker. Premium features like real-time location tracking and personal coaching are available for purchase.

iPhone rating: ★★★★✩

Android rating: ★★★★✩

Price: Free

Active helps you discover and register for all kinds of events and activities, including races. Search by relevance, category, distance, or date. Review activities, complete with maps and driving directions. Save them to favorites or register on the go. Check out the athletic articles, fitness tips, and training guides to help you stay motivated.

iPhone rating: ★★★✩✩

Android rating: ★★★★✩

Price: Free

Garmin Connect aims to help you “beat yesterday, every day.” Garmin’s comprehensive tracking capabilities (when paired with a Garmin device) work for swimming, running, cycling, and more. Many athletes enjoy the community aspect of the app. Challenge friends to workouts, share your goals and progress, and even earn badges for achievements. The clean interface makes it easy to see how you stack up against the competition. Garmin Connect strives to continue improving the app, releasing new updates each month. Of note: While the all-time app store rating is about 3, the newest version is rated 4.5.

iPhone rating: ★★★★✩

Price: Free

The makers of Couch to Triathlon ask: “Why not tri?” The app promises to have you sprint-triathlon ready with the Couch to Triathlon program. In addition to tracking capabilities, the app provides guided exercise similar to a coach. Promising to help you achieve the best shape of your life, the app also has weight management tools. Train 4 to 6 days per week for 12 weeks in order to be a confident competitor. The level 1 plan is for the complete beginner, while the level 2 plan is for more seasoned athletes.

iPhone rating: ★★★★✩

Android rating: ★★★★✩

Price: Free

For tracking and logging your runs, rides and general fitness, Wahoo Fitness has you covered. Pair it with a variety of fitness sensors to collect your data. See your heart rate or other info, depending on which sensors you connect. Then receive customizable audio updates during your workout, such as distance or calories burned. Track your splits and analyze your history to see how you’ve improved. The summary page offers a motivational boost, displaying all your hard work at a glance.

iPhone rating: ★★★★★

Android rating: ★★★★★

Price: Free

TrainerRoad promises to make you a faster cycler. The app creates custom programs for new and veteran athletes alike. Their three-phased approach mimics an entire training season. The app guides you from building early fitness through refining peak performance right before race day. Pair your indoor trainer for a power-based training experience. Any problems with the app? User reviews seem to agree that they have an excellent customer support team. With a paid subscription, you’ll also get access to the TrainerRoad blog and a coaching podcast.


Catherine is a journalist who's passionate about health, public policy and women's rights. She writes on a range of non-fiction topics from entrepreneurship to women's issues, as well as fiction. Her work has appeared in Inc., Forbes, Huffington Post, and other publications. She is a mom, wife, writer, artist, travel enthusiast, and lifelong student.