I bought this lamp because of this app however you should be able to adjust profiles with the lamp off number one number two sometimes i will open the app and it will just randomly cycle through modes like a ghost, most importantly though it forgets your profile settings!! When you launch the app and it's open for a little while it will show you totally different values for your settings in your lamp you must re-close that app and reopen it again it'll show you correct profiles however updating your lamp profiles is a crapshoot whether it will upload the correct values or not or the random values that it just sometimes sets a big disapointmen!

Dependable and powerful lighting as promoted. Too many times have I purchased an outdoors product with expectations from advertisement capability, just to be let down. Cost is affordable for quality of purchase. Thought had problem with battery, contacted customer service, same day reply and with just a couple communications the rep had me back up and running. Was simple human error(mine). Am an outdoors recreation and hunting guide. Clearly lighting is of UTMOST necessity. Recommend PETZL to all fellow colleagues. In my circle of ppl in same industry are almost all using PETZL with satisfaction on professional level. CANNOT operate without lighting. No room for error/malfunction in real time operations in deep country. Therefore PETZL is my go-to equipment of choice. Confidently recommend to all, for personal and professional use. Good luck, God Bless and God Speed to all. Get outdoors and enjoy the fresh air! V/r, state of Maine.

The petzl headlamp is amazing. The app is just okay. Definitely good features. Organization feels like it could be different or more intuitive. That’s not really an issue. However, the fact that when in Bluetooth mode the app doesn’t just stay connected to the headlamp is frustrating. When turning the headlamp on it connects without any issues. But when I put my phone in my pocket and come back to the app to make an adjustment then it no longer sees the headlamp and I have to turn the headlamp off and on again. Minor issue. But could be major if I were to get injured and needed to quickly and easily use the SOS feature. Not sure if there is a fix to this or if it’s a limitation of Bluetooth technology. But it if there was it would be a game changer in regards to ease of use.

It’s the first time I have ever encountered an iOS app where you can’t close or get past the “on-boarding” or initial tutorial screens. The last screen has a very small “X” in the top right corner - right under the battery level indicator - that no matter how hard you try, it cannot be accessed. My suggestion would be to Q/A this app on an iPhone X and re-submit to the App Store. As for the rest of the app, well I have no idea. Can’t get to it. C’mon Petzl ! You can do better.