Try Threema… Open source, Swiss based, audited. As you and your data are not the product of this company, it costs 5 bucks. Less than a Starbucks coffee, but I still have a hard time convincing my peers to switch. (Not affiliated with Threema, just a fan)
26 cantons (states, its a confederacy), four languages, many dialects. You could fit nearly 17 Switzerlands into Texas. (Not nearly as much if you press it flat first ;-) )
In Chemistry (where it originated) it is still called NMR. There is no image produced, but a spectrum (graph).
Years ago I consulted for a French company and analyzed their processes. Heavily depended on Excel. They all pronounced Excel Sheet as “Excel Shit”. All day long it was sentences like"…and then I make an Excel Shit here", “… then I give the Shit to my colleague”. It was glorious… (and technically they were right).
I heard from a gas guy that this is to ensure that only connectors made for gas usage are used and people don’t build crazy contraptions with plumber gear for flammable gases… Kinda makes sense.