App is a bit buggy. Almost all the time the app seems to lose its “place”. The most often issue is that after leaving the app for a while, I come back to the app and the count down timer has only advanced 1-2 minutes, when in reality 20 minutes have passed. I have resorted to setting an iPhone timer in the background to accurately track time. The second most seen issue is that when I come back to the app, it has two different timers going, only seconds apart. As a request, I would like the option to disable the tone the contacts emit.

Using the app is great! The wireless approach is the best after years of wires and more wires. The app is logical and easy to experiment with. You can stop and start over. Try every variation and see what suits your needs as an individual. Not many tens units use apps yet so given I had few choices of tens units using apps this is just fine.Wish I had control over the time feature. My last tens unit defaulted to 45 minutes. This one defaults to 30 minutes. It’s very arbitrary. At least give me access to as many variables as possible! Lock out at the highest point of time before it gets dangerous but give me some leeway.Overall, I’m happy with the unit. I’ll use the app but I understand why the extra handheld unit exists. Probably won’t use it, however.

I had an issue with iPhone 13.. but seems to have smoothed out now. You have uninstall and then reinstall. I had an issue upgrading to an iPhone 13 Pro Max, but it seems to work now. By the way, you still have problems with no fix in sight, hang on to that remote that came with it, you'll be using that a lot for the foreseeable future. 🤷‍♂️ To add, host's website is no longer maintained, nor does it work. So this is all WYSIWYG at this point kids. The developer seems to have flown the coop. 😑

I need to be able to use 2 devices at once. One for the T-8 and T-9 area and one for the L-5 area on my lower back. You would think the app would be compatible with using multiple devices for chronic pain treatment. Carting around 2 remotes defeats the purpose of getting the wireless devices with the app control. It was supposed to make it less obvious when I have to use them at work when the pain is too much. You really should fix this issue.