hmm, well it’s unfortunately usually a “you pay for what you get”. If you’re not paying then you’re gonna end up as the product. I only have experience with “text now” which I’ve used in a pinch before and it has some limitations on the calls which you’ll usually end up running into on any app. I wouldn’t be surprised if there was some better ones out there. If you’re worried about what kind of App you’re downloading you might try the !privacy@lemmy.ml community as someone there might have a better source that isn’t constructed to mine your data.