Best weight lifting and gym apps for iPhone: Fitocracy, Strong, GymBook, and more!

Looking to make the most of your time at the gym? From weights to workout challenges, these are the best gym apps for iPhone!

Are you looking for the best iPhone apps to help you track weights and monitor your activity at the gym? Whether you're training for a specific activity, trying to drop weight, or just tone up, there are lots of gym apps that can help you track your progress and add some variety to your workouts. No matter what your goals are, the App Store has something for everyone, and we think these are the very best:

Fitocracy

Fitocracy turns tracking your workouts into a competition with others. You can track things either as you do them at the gym or once you're done. Along with adding exercises you already know, Fitocracy is a great way to learn new ones. There are lots of premade workouts as well that can add a lot of variety into your workout. You can also build and save your own.

If you need some motivation to give your workout your all and need some help mixing it up, Fitocracy is a great choice.

• Free - Download Now

Strong

Strong is a workout tracking app that lets you quickly and easily enter information about your workout. Like Fitocracy, you'll unlock and collect achievements when you reach certain fitness milestones. Add routines and then easily add them to new workouts whenever you need to. One of my favorite features of Strong is the warmup calculator that helps you pick what weights you should use to get warmed up before each workout.

If you want a simple way to track your workouts and watch your progress, give Strong a try.

• Free - Download Now

30 Day Fitness Challenges

30 Day Fitness Challenges lets you choose a fitness challenge to commit to. You can then set up reminders and perform it and track your progress each day. When you start a challenge, 30 Day Fitness Challenge walks you through each part of the workout and doesn't move on until you've said you are done. Currently you can choose challenges that work arms, core, legs, and overall general strength.

If you want to mix up your gym workouts and need something new, get 30 Day Fitness Challenges.

• $2.99 - Download Now

GymBook

GymBook is another workout tracker but focuses more on strength training than anything else. You can easily create new routines and workouts, browse and see beautifully animated GIFs of each type of exercise, and more. If you're using weight resistance on any exercise, simply enter the amount in pounds or kilos and the amount of reps. One of my favorite features of GymBook is that you can see data next to a specific exercise containing the last few times you performed it and how many reps and for how long. This keeps you aware of your progress in just a single glance.

If strength training is your main goal and you want a flexible and powerful way to track things, you want GymBook.

• Free - Download Now

JEFIT Pro

JEFIT Pro may not have as nice of a design as some of the other apps in this list but it more than makes up for it with its huge catalog of exercises. JEFIT Pro is crammed with lots of useful stats and information from 1RM and total volume charts to cardio tracking. JEFIT Pro gives you a great overall picture of the state of your body and what you should be focusing on to improve it.

For the largest database of exercises and the best overall picture of your body, give JEFIT Pro a try.

• $4.99 - Download Now

Your favorite iPhone apps to take to the gym and while lifting weights?

If you frequent your local gym — or even work out at home — what apps do you depend on to track your progress, help you strength train, and make the most of your workout? Vote in our poll and we'll highlight your favorite picks later this week! If you use something different than what's listed, be sure to let us know in the comments!