"Zeetle" is an amazing application to easily share and transfer photos and contacts from your iPhone to your friends smartphone.Its extremely simple. You just select the data and hear the "Zee" sound on your smartphone! Photos & Contacts transfer- Bulk photos transfer up to 10 by selecting multiple data.- Select ALL contacts and transfer them all at once, which works especially when you change your smartphone.- Just hear the sound on iPhone, you don't need to copy from your back up PC.- Using 4G and WiFi network, you can send the data at very high speed.- You can share with multiple people at once who can listen to the sound.- Also you can securely select the receiver(s) you want to send before you send the data. Volume adjustmentPlease adjust your iPhone's volume with the volume buttons. If the sound is too big, you may fail with cracked sound. It's fine with moderate level of volume.