Hi apk content rating is Everyone and can be downloaded and installed on android devices supporting 9 api and above.
"Get the most out of your smartphone with Hi, a free communication app that makes free WiFi calls/video calls with your friends. Send text, voice, image and video messages as well. Save time, save money; switch from phone calls to Hi free WiFi calls now!
WHY GET HI? ★ REAL FREE WIFI PHONE: You can call out to any mobile or land line for free! ★ ENCRYPTED SECURE CALLS: All Hi communications are encrypted with 256-bit AES and extremely secure! ★ NO HIDDEN COSTS AND COMPLETELY FREE: There is nothing to purchase and Hi will always be free. ★ NO SUBSCRIPTION NEEDED: Just enjoy the free WiFi calls and video calls without any subscription fee. ★ NO TIME LIMITED: There is not a time limitation for calls and you can talk whatever long you want with your friends and family. ★ AVAILABLE INTERNATIONALLY: You can make unlimited international voice/video calls between your Hi contacts for free with crystal clear audio quality. ★ NO ADS, NO PRIVACY CONCERN: Hi is completely free and financed by its sister game company. There are NO ADS so you can talk to you friends and family in this highly privacy protected app. ★ CAN BE USED WITH DATA: All Hi services are available with 4G/3G/EDGE. We charge you nothing. Carrier data charges may apply. ★ 720P HD VIDEO CALLS: The HD quality video call brings you and your family together wherever you are. ★ SWITCH FROM VOICE CALL TO VIDEO CALL: You can switch from voice call to HD Video call on the fly. ★ WORLD'S FIRST 10,000 GB FREE VIDEO CLOUD STORAGE: You'll never run out of space on your phone and miss out on capturing a moment with "Hi". With Thunderclap Technology, you can sync all your photos and videos on Hi and delete local copies to save your phone space. ★ INSTANT PHOTO/VIDEO SHARING: All your private cloud photo/video shares are instant and costs you no data traffic! ★ SAME AS SMS: All messages will be stored while your phone is shut off or without network. You can get them immediately when Hi launches next time. ★ AND MUCH MUCH MORE: Sent/Delivered/Read Status for Messages, Advanced Privacy Settings, Group Chats, Voice Messages, Tens of Thousands of Free Animated Stickers, Multi-Login, Web Chat, Free Custom Chat Bubbles, Share Locations, Free Custom Wallpapers and easily exchange contacts.