for easy to install app on your friend’s iOS device, you can share app from your iPhone, iPad or iPod Touch through different messaging apps and Mail. Popular messaging apps are Line, WhatsApp, Facebook, Mail, iMessage, Twitter and many other Third party apps running on your iOS device. in the case if you wanna install another device login with same apple ID then you can reinstall purchased app directly from app store without search all apps manually. here is the detailed steps on share iPhone app store app with friend directly from iPhone or share all installed app and games.
Steps for Share iPhone app store app with friend alternate easy ways
Step 1: Go to the app store app on your iPhone, iPad or iPod touch.
Step 2: Find the app that you want share with your friends or if already installed on device then Updates > Purchased > My Purchases > List of all apps. tap on app name.
Step 3: Once you open app in app store > Tap on share icon from top screen.
Step 4: Sharing popup will be appear at bottom, First copy URL in case if you want share it on WhatsApp, Facebook. Then Slide social app options. 
Step 5: here I gave example on Whatsapp share, Tap to add a Caption. Paste copied URL there. 
Also share WhatsApp message to multiple contacts.
Step 6: after that, you can send it. 
As an alternate option for share iPhone app store app with friend’s device, you can try mail app, iMessage, Facebook, Twitter, Sina Weibo, Tencent Webio, Or on AirDrop.
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