The actual device works fine, I guess, but the app is next to worthless. We have two of the hardware pieces for our Peloton bike and they sync up with that consistently but when I want to go out for a run 9 times out of 10* it won’t sync up. I’ve even had both devices on both arms beeping away, synced to my iPhone, restarted the app, restarted the phone, looked in vain for an update, all to no avail. IT’S THE COMPANY’S OWN APP! Not some third party! C’mon guys! *I never know if it’s going to work, sometimes it will catch and start and then drop off. Aaarghh!!!

What a disgrace. It lets you "save" workouts to the app, but the saved file disappears when the monitor is not connected to the phone. That's useless. Also, the app won't open the file so you can't see what's in it, and it connects to precious few apps that supposedly do open the file, and so far nothing works. I've "connected" the app to the Apple HealthKit, but the workout I recorded does not transfer over so I can't read it there. I cannot find any iPhone apps that will open it. I exported the workout, and it saves as a "*.fit" file that no programs on my Mac can open. The documentation is useless and says nothing about this. It does not connect to My FItness Pal which is one of the best most universal fitness and diet apps out there. I tried connecting to something called "Today's Plan," which shows up as an option in the Scosche app, but that software is, if anything, even more useless and poorly coded than the software for this device. Nice device. Junk software. And without good software the device is junk too.

I bought my Rhythm+ June of 2017.Ok, there are a ton of negative reviews on here, which I believe are a tad unfair. I sync the strap with my watch (presently a TomTom Runner), and it just plain works. Occasionally the HR will measure low, but during the course of my runs, it is rock solid. As for the app, I only use it to make sure that my firmware is current (which has only needed an update 1 time - I’ll get to that in a minute), and to check the battery level to see if it needs charging. I basically charge the unit once per week.I am actually now on my second Scosche HRM.The first one (purchased in 2017) needed a firmware update, but (on the ORIGINAL app, not this one) following all of the guidance from the app and from tech support, it simply would not update. The tech support team advised me that it wasn’t really a necessary update, but if desired, they would replace my unit with a new one that had been updated. I opted to swap it out and have had no issues since. (This was in July/August 2019).Do I wish we could do more in the App? Sure, but my main focus as a distance runner is knowing what my HR is doing during my training and long distance runs. Anything more than that is just a bonus.

The rhythm 24 heart rate monitor seems to be a very accurate and decent product with good functionality. This app however, is extremely basic. I don’t think this app was actually intended to be used for more than its basic features. Which are to show you your heart rate, heart rate zones, battery level, software updates, basic settings. You definitely need a different app to enjoy all the functionality and features of your heart rate monitor. If you set your expectations for these basic features, the app is functional. If you expect anything more like what an exercise program is going to give you that is not what this app does.