# Pipe Trades Pro Calculator

> Solve rolling offsets, pipe fitting & weld math in seconds. Built for the field.

Canonical page: [https://chrome-stats.com/d/com.calculated.josephine](https://chrome-stats.com/d/com.calculated.josephine)

## Overview

- **ID:** `com.calculated.josephine`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Calculated Industries
- **Category:** TOOLS
- **Downloads:** 63,141
- **Rating:** 4.79 / 5 (1,588 ratings)
- **Version:** 10.8.7
- **Last updated:** 2026-09-15
- **First published:** 2012-05-24
- **Publisher country:** US
- **Size:** 26 MB
- **Data as of:** 2026-09-19
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.calculated.josephine)
- **Website:** [http://www.calculated.com/productsupport.asp](http://www.calculated.com/productsupport.asp)
- **Privacy policy:** [http://www.calculated.com/calc-apps/privacy.asp](http://www.calculated.com/calc-apps/privacy.asp)

## Description

**Pipe Trades Pro** is a professional field calculator for pipefitters, steamfitters, sprinkler fitters, welders, journeymen, and apprentices. Quickly solve rolling offsets, odd-angle fittings, cut lengths, NPT thread engagement, weld cutbacks, drain slope, pipe runs, and fitting layouts without decimal conversion or internet access.

The app includes fluid dynamics and pressure calculations for water, steam, compressed air, and hydraulic fluids, plus pipe data for steel, stainless steel, brass, copper, and aluminum in sizes up to 42 inches. Built-in imperial and metric support, pipe schedules, material references, flow rates, pressure loss, and feet-inch-fraction input make it useful for commercial and industrial jobsites.

## Rankings

- #272,156 — Overall
- #14 — plumbers

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.INTERNET`
- `android.permission.READ_EXTERNAL_STORAGE`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `android.permission.WRITE_EXTERNAL_STORAGE`
- `com.android.vending.BILLING`
- `com.android.vending.CHECK_LICENSE`
- `com.calculated.josephine.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`

## Review summary

The Pipe Trades Pro Calculator app is highly valued by experienced users for its specialized functions and convenience on job sites. Long-time users praise its instructional features and accurate calculations. However, the forced switch from a one-time purchase to a costly $40/year subscription has sparked significant backlash, with many citing affordability issues and preferring the physical calculator. Users also report frustrating difficulties transferring app access to new devices and some technical problems with subscription validation. Despite the app's utility, the new pricing and access challenges have led to widespread user dissatisfaction and loss of recommendations.

### Pros

- Highly useful and accurate calculator specifically designed for pipefitting and plumbing trades.
- Convenient to use on smartphones, allowing quick access on job sites without carrying the physical calculator.
- Well-regarded by long-time users who purchased the app before subscription model changes.
- Helpful functionality such as detailed calculation reports and instructional features (e.g. long press for manual and YouTube tutorials).
- Good customer support experienced by some users when transferring app to new phones.

### Cons

- Recent change to a $40 yearly subscription model is widely disliked and considered expensive relative to physical calculator cost.
- Difficulties and inconvenience when transferring purchased app access to new phones, causing frustration.
- Subscription model perceived as a greedy business decision, leading to loss of recommendations and purchases from new users.
- Technical issues with subscription verification causing access problems despite purchase, adding to user dissatisfaction.
- Lack of notifications or clear communications about subscription changes and updates.

## Similar extensions and apps

- [Pipe Fitter Calculator](https://chrome-stats.com/d/com.pipe.fittings.kevin) — 19,940 users, 4.44 / 5
- [easy Pipe fitter Pro](https://chrome-stats.com/d/com.phs.easypipefitterpro) — 3,983 users
- [Pipefitter Tools](https://chrome-stats.com/d/com.odesk.calculator) — 294,256 users, 3.88 / 5
- [Pipe Support Calculator](https://chrome-stats.com/d/pipe.support.calculator) — 9,627 users, 3.83 / 5
- [Mitered Pipe](https://chrome-stats.com/d/pipe.calculator.miter) — 7,582 users, 4.38 / 5
- [Pipe Craftsmen](https://chrome-stats.com/d/com.pipe_craftsmen) — 4 users
- [Socket Pipe Calculator](https://chrome-stats.com/d/socket.pipe.calculator) — 3,301 users, 5.00 / 5
- [Pipefitter](https://chrome-stats.com/d/com.tomaszymanski.pipefitter_flutter) — 15,676 users
- [Pipe Guide Calculator](https://chrome-stats.com/d/se.itwelding.pipeguidecalculator) — 180,536 users, 3.64 / 5
- [easy Pipe fitter](https://chrome-stats.com/d/com.phs.easypipefitter) — 301,670 users, 3.84 / 5
- [Pipe Master Pro](https://chrome-stats.com/d/com.pipemasterlogic.twa) — 155 users
- [Pipe Welding Calculator](https://chrome-stats.com/d/com.se.weldingpipe) — 69,275 users

---

Source: [Chrome-Stats](https://chrome-stats.com/d/com.calculated.josephine)