WhatsApp is our pick for best app for messaging! An app that allows you to exchange messages without having to pay for SMS!

It’s true; it’s called WhatsApp and it can be downloaded right here! WhatsApp is extremely seamless and pragmatic to use because it automatically imports all of your contacts, which allows you to easily invite your friends. The app works just like BBM (BlackBerry Messenger), and is perfect for keeping in touch when you’re abroad as their are no additional charges. It features “Group Chat”, “Push Notifications” and a cool “Custom Status” option which lets you tell everyone what’s going on with you.

In addition to unlimited text messages, the app will enable you to send unlimited “images, video and audio messages.” WhatsApp is available not only for the iPhone, but also for your Blackberry, Android and Nokia devices.

Check out our awesome series; “30 Daily Tips and Tricks for iPhone 4 and iPad 2”.

We always love to hear feedback from our readers, so drop us a line in the comments below and feel free to suggest cool apps we could add into the series!

See Best App # 30: Siri– Personal Assitance

See Best App # 29: HeyTell– Walkie-Talkie-ing

See Best App # 28: ESPN ScoreCenter– Sports

See Best App # 27: The Weather Channel– Weather

See Best App # 26: iFirstAid– First Aid

See Best App # 25: CraigsPro +– Deal Hunting

See Best App # 24: Evernote– Notes

See Best App # 23: CarbonTrack– Environmentalism

See Best App # 22: foursquare– Socializing

See Best App # 21: djay– DJing

See Best App # 20: Monkey Preschool Lunchbox– Toddlers

See Best App # 19: Weber’s On the Grill– Grilling

See Best App # 18: Print n Share– Printing

See Best App # 17: Gist– Contacts

See Best App # 16: Skype Mobile– International Calling

See Best App # 15: Square– Payment

See Best App # 14: Mixology– Drinking

See Best App # 13: Bloomberg Mobile– Finance

See Best App # 12: Optimum– Television

See Best App # 11: TeamViewer– Remote Access

See Best App # 10: Hipstamatic– Photography

See Best App # 9: Dictionary.com– Reference

See Best App # 8: Babelingo– Travel

See Best App # 7: Pandora– Music

See Best App # 6: EasySign– Documents

See Best App # 5: Amazon Mobile– Shopping

See Best App # 4: Bump – Networking

See Best App # 3: Cut the Rope– Gaming

See Best App # 2: Seamless– Dining