I've been a long time user of Network Cell Info Lite, and today it popped up a notification that the full version was free. Really useful app for looking at the your network signal strengh. First bargain post, be gentle!
Network Cell Info is an extensive mobile network and Wi-Fi monitoring app with measurement and diagnostic tools (5G, LTE+, LTE, CDMA, WCDMA, GSM). Network Cell Info can help troubleshoot your reception and connectivity problems while keeping you in the know about your local cell carrier radio frequency landscape.
Nice one, thanks OP. This might actually be handy for me and my partner who recently moved and have been testing our mobile carriers and data tests.