Green Call app for iPhone and iPad

Tired of paying outrageous rates for international calls on your carrier? Look no further. GreenCall can offer you the cheapest rates with excellent quality, even on slow internet connections.

Features:
• Internet Calls via Wi-Fi, EDGE / 3G / UMTS / 4G
• SIP-based softphone with exceptional voice quality
• Proprietary compression technology makes it usable on any kind of internet connection
• Compatible with VOIP switches supporting standard SIP
• Flexible integration with your phone book contacts
• Screen display for your call history, call timer and balance