Hi friends, i have a very nice app to tell you about which may be very helpful if you are looking for free calls and sms. The app is called "textPlus". This app is available free for Android, iPhone, iPad, iPod Touch, Kindle Fire, Windows Phone and Nokia. You can do free calling and texting to those users who have this app installed in their devices. For other calls, this app provide calls at very cheap rate. It works over WiFi, 3G and 4G devices. This app provide group sms also and you can send pictures also using this app.
SCREENSHOTS:
Why use textPlus GOLD?

• Only textPlus GOLD gives you AD-FREE UNLIMITED CALLING + TEXTING FOR LIFE to anyone in the textPlus Network.
• Send free SMS to any  US or CANADIAN 10 digit mobile number - even friends without the app!
• Free group messaging and picture sending.
• WALKIE-TALKIE IT -- Send Voice Notes FREE to anyone in the world.
• PEOPLE TAB - easily find friends in your device contacts or on Facebook already on textPlus or invite friends to join
• PUSH NOTIFICATIONS - Turn them on so you know right away if someone texts or calls!
• INTEGRATED INBOX - view regular text messages inside textPlus.
• QUICK RESPONSE POP UP - respond quickly to any message, even if you’re outside the app.
• NEVER MISS A MESSAGE OR CALL - Battery died? On a flight? You’ll still see all your texts in your inbox and missed calls in your history when you turn your device back on.
• NOTIFICATIONS when new friends join textPlus!
• MEET NEW PEOPLE - Search any topic in the People Tab to find users with similar interests.
• FEATURED COMMUNITIES – Chat with other textPlus users on tons of topics.
• PERSONALIZED SIGNATURES.
• TABLET & CROSS PLATFORM SUPPORT - Login from any Android device to make and receive calls or send messages to friends on any device- even those without the app!
• EARN FREE MINUTES or BUY MINUTES AT AMAZINGLY LOW RATES to call any US* mobile or landline outside of the textPlus Network.
• Start calling with your FREE TRIAL MINUTES.
• SAVE UP to $1100/year by using textPlus exclusively for FREE TEXTING + CALLING. No more text or phone plans!
• YOU GET A PHONE NUMBER - Turn your Android tablet into a phone. Have an Android phone? Reduce your current phone+text plans and share your textPlus number with friends to save money.
• Works on WiFi or 3G/4G.
• For Android Phones & Tablets.