
About
This construction calculator simplifies measurements with a unified keypad for imperial and metric units. It offers five specialized tools for concrete volume, stair layout, rafter calculations, and spacing, with a history of recent calculations.
What's New in Bangon 345
1.1
October 12, 2026
Stairs and Rafter now live under a single Framing tab, joined by two new tools — Rake for raking-wall stud layout, and Radius for curves between two walls.
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FAQ
What is Bangon 345?
Bangon 345 is a construction calculator designed for on-site measurements. It allows users to input measurements in feet, inches, and sixteenths, or switch to metric units for various construction tasks.
What tools are included in Bangon 345?
Bangon 345 includes five tools: Calc for basic arithmetic in imperial or metric, Volume for concrete calculations, Stairs for riser and tread layout, Rafter for roof pitch calculations, and Spacing for even distribution of elements.
Does Bangon 345 have ads?
No, Bangon 345 is ad-free. The app is a one-time purchase with no subscriptions, in-app purchases, or advertisements.
What is the price of Bangon 345?
Bangon 345 costs $3.99 and is a one-time purchase. There are no additional costs, subscriptions, or in-app purchases.
What devices is Bangon 345 compatible with?
Bangon 345 requires iOS 17 or later and is supported on iPhone.
How often is Bangon 345 updated?
The latest version of Bangon 345 is 1.1, which was last updated on October 12, 2026. This indicates regular maintenance and potential feature additions.
Is Bangon 345 private?
Yes, Bangon 345 is designed for privacy. It does not connect to the internet, requires no accounts, and does not track user data. Your calculation history remains on your iPhone.
What is the age rating for Bangon 345?
Bangon 345 has an age rating of 17+. This is likely due to the complexity of the calculations and the target audience in the construction industry.







