None
Does not include stud length
Budget
Ok
My opinion
It really helps
Fieldwork
I love this app it helps me a lot. Thank you
Fantastic
Great work. Easy to use.

Instantly access flange, pipe, and bolt data offline. Quickly find bolt sizes, torque patterns, flange dimensions, and pipe specifications. Ideal for pipefitters and steamfitters needing rapid access to piping information.
Reviews of Flange Bolt Size & Torque are mixed: the Reference app is rated 4.6/5 from 363 App Store ratings. What users like most: easy to use, huge time saver. Top complaints: now charges for features, used to be better. Summarized from real user reviews.
18.26
March 25, 2026
Performance improvements
Full access to all professional features
6 issues
App stopped working, requires resubscription
App will not open after latest update
7 requests
Add Code 61/62 flange information
Include machined bolt sizes
This app provides instant, offline access to a comprehensive database of flange, pipe, and bolt data. It allows users to quickly look up information such as the number and diameter of bolts, wrench size, torque patterns, flange dimensions, pipe specifications, and gasket data.
The app includes detailed data for flanges (number of bolts, bolt diameter, length, wrench size, torque pattern, target torque, outside diameter, thickness, bolt circle diameter, weight), pipes (outside diameter, wall thickness, schedule, weight), and gaskets (inside/outside diameter, spiral wound dimensions, ring dimensions). It covers various flange rating classes and sizes.
The app is free to download and use, offering offline access to its extensive data. Based on the provided information, it operates on a 'free with in-app purchases' model, suggesting that some features or expanded content might be available for purchase.
The primary benefits are its full offline capability, meaning no internet connection is required, and its instant data lookups, which are significantly faster and less error-prone than manually searching through PDF charts and tables. It also includes visual aids like torque sequence images.
The app is specifically designed for pipefitters, steamfitters, and other professionals working in the piping industry. It aims to simplify the process of looking up essential piping information, making their jobs more efficient.