Brace. It's one syllable, easy to hear once and spell, and it carries weight without belonging to any single trade. Everyone on a job site knows what bracing is, and it also suggests steadiness and being ready for what's next, which fits the "what's next" screen. It avoids every pitfall in the brief: no compound, no -ly/-io ending, not cute, not generic software language. Do the App Store check for "Brace contractor" and "Brace estimate" before you submit. If it turns up a direct competitor, switch to Footing.