“Insha’Allah” means “if Allah wills.” It is not a way to avoid commitment — the Qur'an actually instructs us to say it whenever we speak of the future, because no plan of ours unfolds without His will.
“And never say of anything, "Indeed, I will do that tomorrow," Except [when adding], "If Allah wills."”— 18:23-24 (Saheeh International)
Ask Noor can explain the adab of speaking about the future and the other phrases tied to it.
Ask Noor — free on the App Store