I have this app on my iPhone and Samsung, and it works seamlessly with all devices. You can create a group chat of up to 25 people, compared to a paltry 6 on Freetone, the app I switched from. This app is free for unlimited Wi-Fi calling and unlimited texting on Wi-Fi. I use it to text my friends and call them at home. The person you're calling or texting doesn't need to have TextNow. Call quality is awesome - I called my friend Ev yesterday and everything sounded perfect. Messages are awsome too - they send in 2 seconds. Also, you don't get your messages blocked at random times, like with Freetone. You can also block people. Also, you can set it as your default phone calling app, which is very useful. Voicemail is free. I can also transfer my (TextNow) number to a SIM card on Sprint's network. You can also use it for receiving verification codes (new Google account, Youtube account, Tiktok messaging, etc). You can use your TextNow number as your Google Duo number (Google Duo is Google's video call app, sorta like FaceTime for iPhones. You can download it for both Android and iOS). Overall, I'd say that this is the best. I daresay it's so good that I don't need Textnow's customer service :) This is THE BEST!