Perfect Plank by Exer 4+

Interactive AI Fitness Coach

Exer Labs, Inc.

    • 4.7 • 64 Ratings
    • Free



Perfect your plank form, challenge your friends, or join a team to get your core strong. Our AI motion coach will give you real-time interactive feedback and track your time every step of the way. It’s not as good as a real coach in your house, but how could it ever be? See you on the leaderboards!

Exer is a transformative fitness platform connecting you to the best coaches and trainers on the planet, along with the support of first-of-its-kind artificial intelligence using just your phone. Apart from our Perfect Plank app, we are in the midst of launching other apps. See more on

More about Exer:

REAL-TIME FEEDBACK USING OUR AI. We use on the edge AI (on your phone) to track your movement in real-time, and provide you audio feedback for a more immersive coaching experience. If anything, we’re only augmenting (not replacing!) the existing coaching experience, and we’re here to empower people to move, train and play better!

HELP FEED AMERICA. 1 min of plank time = 1 meal donated to Feeding America. Up to 10k meals this month. Everyone automatically joins this team and is part of this challenge!

ALWAYS FREE TO USE. The Perfect Plank is completely free -- there are no hidden costs in our app. We will add additional paid features down the line, but you’ll never have to pay for what you use today.

PRIVACY BUILT IN. We take your privacy seriously. While we use the front camera to recognize movement, none of your video is ever sent to us / the cloud. The AI runs purely on your phone, and only your 3 recent planks are stored on your device for you to review. Nothing gets sent back to us unless you have an error and want to help us troubleshoot.

CHOOSE FROM DIFFERENT COACHES. Use one of our two coaches to motivate you and give you audio guidance during your plank. More coaches to join the platform soon.

NO HARDWARE NEEDED. All you need is your phone and an empty space to plank. No fancy equipment required.

INTERACTIVE AND FUN. With leaderboards and teams, invite your friends, family, followers and challenge them to a plank.

COACHES/TRAINERS. If you’re interested in creating a team for your clients or adding your voice to the platform so you can give your clients personal coaching, please drop us an email at!

PHONE/IPAD TYPES. We only use the camera on your iPhone or iPad, but require iOS 13.0 or newer. Will work on iPhone SE, 6s, 6s Plus, 7, 7 Plus, 8, 8 Plus, X, XR, XS, XS Max, 11, 11 Pro, 11 Pro Max. iPad Air 2, Air (3rd generation), mini 4, mini (5th generation), iPad (5th generation), iPad (6th generation), iPad (7th generation), Pro 9.7-inch, Pro 10.5-inch, Pro 11-inch, Pro 12.9-inch


Terms of Service:
Privacy Policy:

If you have any questions or feedback, reach out to us at and we'd love to hear from you.

Follow @movewithexer on FB, Instagram, and Twitter.

What’s New

Version 1.4.0

This build announces that we have made the decision to shut down Perfect Plank. We thank you for trusting the Exer platform to measure your plank form and progress and wish you endless success as you tackle your current and future wellness goals.

Ratings and Reviews

4.7 out of 5
64 Ratings

64 Ratings

Ezekiel Padilla ,

This app is amazing(just some things I wanna see)

I just got done doing my plank today, been going for like 3 days, but I got 17 minutes😁. I’m super stoked and I’m aiming for #1, I have ZERO complaints about this app. The tracking is pretty good(my friends have had some issues with the tracking or it tells them they aren’t in frame when they are)(I did have one issue with my plank when it just stopped when I was going for a drink), and the coach support feature is awesome.
Recently though with the team feature, I think it would be awesome to see a team chat, at least in the personal teams. It would be great to cheer on your friends in the app or comment on their times.
Or maybe even a team leaderboard. Thank you for the amazing app!

Developer Response ,

Hi Ezekiel, thanks so much for the support and it's great that you've been enjoying the app. 💪 We appreciate your feedback and will look into implementing them as new features in future. We're cheering you on to hit #1 on the leaderboard!

celcelw ,


Such a fun and great new app! After downloading this I’ve been planking consistently and improving my form! I’ve never felt this strong and fit. The app shows a leaderboard so it inspires you to plank more each day, and it’s exciting to take on this daily challenge.

Trust me, you won’t regret downloading this app!! Definitely a game changer in the fitness app realm.

Developer Response ,

Hi! Thank you so much for your support and positive review, and we're glad to hear that you're feeling stronger and fitter with the app! 🙌

Matrixd1993 ,

Needs serious work for a better review

I’ve been working on planking better for months. All too often, the AI will say, “your hips are too low.” I’ve looked at the video….my hips didn’t move for a solid 90 seconds after that.

For the AI to say, “we can’t see you.” Yeah that’s a big problem to say when I can clearly see on the screen that I am in clear view. The software needs to adapt to me better. I can be easily seen on the screen. So that to me is a programming failure. It’s a big problem that, unless I’m wearing boxer briefs, it’s unable to connect a straight line from my head to my hips. Surely there’s some way that I don’t have to be nearly naked for the software to see me? I have the camera 8 feet away and there’s still issues

App Privacy

The developer, Exer Labs, Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info
  • Identifiers
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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