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It might someday. In musing.io's introduceyourself post on steemit.com it states,

"We plan to open-source the platform once there is clear developer interest. Open-source is the future of blockchain tech and is critical to true decentralization."

Even if musing.io doesn't create an official app someone else might once it is open source.

Source:
https://steemit.com/introduceyourself/@musing/introducing-musing-io-a-decentralized-question-and-answer-platform-on-steem