If you’re not on Twitter yet, you really should jump on the bandwagon. Even if you never post anything, you can get a lot of useful info by following the right people or companies on Twitter. Actually, I get better customer service from companies by posting on Twitter than by calling or emailing nowadays.
Even if you work for yourself, you should have a profile on LinkedIn. It’s the best social networking site for professionals. Companies use LinkedIn like crazy for finding good talent, so keep tabs on your connections via the app.
Hangouts is great for anyone who uses Gmail and other Google services. It lets you chat with your buddies and do video calls with groups of people. Not a very great chatting app if you really think about it, but since it’s Google, it’s useful.
You can use stickers, make free calls, record voice messages and send free text messages. Messenger is a pretty useful app for keeping in touch with people. Also, it’s Facebook, so everyone you know in the world will be on it.
The flickr app lets you browse your Flickr photos and also lets you upload everything from your iPhone up to their free 1 TB storage account. If you take a lot of photos, this is a great option. It’s also got filters and editing tools, so you can fix up your photos before uploading to flickr, Twitter or Facebook.
The above-mentioned apps are mostly related to photo viewing and storage, but Snapseed is good for photo effects. You can transform and adjust photos with the many options and tools this app includes all for free.
Another free app, but this one has in-app purchases if you want more effects than just the basic ones. The free version has a lot of features and more than enough to create some pretty cool edited photos.