The best alternatives to Introduce are Life on Twitter, Bunch, and Fabric Kits. If these 3 options don't work for you, we've listed a few more alternatives below.
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Lampo is a mutual interests networking app. Like Tinder, but instead of faces, swipe discussion topics and chat with people you're interested in. Business partners, new friends and soulmates - Lampo is suitable for different acquaintances and situations.
With accountanalysis you can evaluate Twitter accounts faster. Reasearchers and journalists use it determine how automated and fitting an accounts behaviour is, when it's active, which apps it uses and what URLs it shares.
Spivay is a Twitter extension, which allows you to write music like in old Nokia's phones - by texting. There are several instruments - like piano, strings, drums and a couple more. And one more feature - collaboration. Tweet in reply to merge your melodies!
Joenly is a new social network where you can't post by yourself. 1. Record a video or take a photo 2. Send to a friend 3. He replies 4. Post is published on both your profiles Only available on iPhone for now.