Do you need to be careful about how much data you use with your iPhone or iPad, either via cellular or Wi-Fi?

Do you need to be careful about how much data you use with your iPhone or iPad, either via cellular or Wi-Fi?
Slow or unreliable Internet connection? It could be your ISP—read on to find out how to test your connection and evaluate the results.
Wi-Fi and Ethernet are sufficient for most networking needs, but if you can’t extend a network to a particular spot, consider powerline networking, which runs over electrical cables, or MoCA, which runs on cable TV coax. Details here:
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I have tried all of them and still unable to send pictures messages to android users. Help please
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