You can share posts directly from your Snowledge account to Facebook by linking your Facebook account.
There are a couple of ways to link your account.
You can link your Facebook account when you create your account, or later by going to either your profile page or the More page and tapping Find Friends.
Tap on the Facebook tab, and it will prompt you to connect to your account. Tap on Connect Now, then log into your Facebook account when redirected to the app.
You can also link your Facebook account when you post a photo or video. Tap on Share on Facebook on the same screen where you add a caption and location to your post. After tapping Share you'll be redirected to the Facebook app to enter your login information.