Yesterday, I was reviewing
Network Apps in iTunes and decided to try a new one called
Network Toolbox, shown below on iTunes - a universal app priced at $8.99 and developed in Germany by
Marcus Roskosch. Marcus has written a nice manual which can be viewed
HERE, and also downloaded as a PDF - I perused the manual and made a purchase, despite the cost.
The number of features is astounding (see the second image below) - many I will not use, but some may be crucial to others? The reviews in iTunes and on his website are virtually all highly positive - instead of spending smaller amounts of money of several similar but more limited app,s
Network Toolbox is worth a look and may be the 'Swiss Army Knife' of networking on an iOS device?
I also exchanged several emails w/ Marcus - first, this is a universal app and looks great on my iPad Air 2; second, a new version is about to be released; and third, the current version runs in iOS 10 beta, although several features may be problematic, in part related to Apple's change in the operating system w/ more restrictions on developers.
P.S. I have MUCH more to explore w/ this app, and have no personal or financial relationship to the developer - just posted FIY - Dave

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