Hi. I am a Ham Radio operator and i have been using this great app for about a year to predict and work amateur satelites. The only frustrating part is that the app keeps closing while working the sats. Other than that it works great and it's my preferred app for the job. Working sats is a bit of a difficult task because you need both hands to hold the antenna and the radio. I suggest keeping it open while using to make it easier for the hams that use it. I hope you can do something about this situation and you will get 5stars.Thanks for your time.KN4NZB AlsoP41E

Filters are great to get a list of just what an amateur radio operator would want. Or for an ISS observer only interested in high striking passes. Or filter on the low to zero elevation passes if you like. Another source, or past experience, is needed to know which AMSATs are actually active. Lots of them are still on orbit but long since inactive. Once an Active list is made, a manageable list is produced.What is really nice is just the information an Amateur needs for field work. Details on the pass, ground track map, and the Modes, Uplink and Downlink frequencies come up with one click on the satellite of interest. More than that is far too much data unless already stationed at a ground base with computer tracking decoders...etc.Virtual reality will be interesting to test. I can see it being useful as a pointer. How to place the phone in an already equipment-busy setup is yet to be seen. As far as the screen closing, that is more of a Phone screen saver issue than the app. The phone will blank the screen on every app I’ve used unless you tap it every 30 seconds .

GoSatWatch is still my go-to app for satellite work on iOS devices. Primarily because it allows me to use customized Keplerian data and don’t charge for the ability to do so. Not only is the ham Kep data an extra charge, the feed is riddled with inactive satellites that should be purged from the list so I don’t have to be the one to filter everything out. There’s far better TLE resources available, but ISS Detector does a great job of ensuring you can’t use them. If that one change was made, I’d easily raise my review to at least a 4 star - possibly 5 stars. But as for now, ISS Detector is a secondary resource. I wish I had better things to say. I wish the developer was more open about the data they allowed us to use. I hope the extra money we pay is making them happy. It’s surely not being redirected into enhancing the product or adding new features. Just more of keeping the lights on. Take a look at what others are doing - especially GoSatWatch.

I’ve been using this app for some time and really like it. I bought the amateur radio extension. I use it on a iPhone 12. I do have 2 concerns and would love a response from the development team…1. There isn’t a “refresh” button on the iPhone version or a way to tell when the Kep data was last updated. How do I force an update or tell when it was last updated?2. I’m finding that if I record (write down) satellite pass parameters from this app more than 24 hrs in advance they are grossly in error. For example, if I record the parameters for any satellite that will be passing over 2 days from now then wait 2 days and check ISS Detector again on that same pass, the parameters are all changed, and by a lot. Why can’t the app predict reasonably accurate passes a few days in advance?Great app otherwise! 5 stars.