# Hydro Test Pressure — Hydro-Test Pressure Calculator

> Hydro-Test Pressure Calculator (iPhone/iPad app by Imran Pinjara.)

- Source: https://appshunter.io/ios/app/hydro-test-pressure/id1491873084 (this page in markdown: same URL + `.md`)
- Developer: [Imran Pinjara](https://appshunter.io/developer/1484488781)
- Category: Utilities, Productivity
- Price: $1.99
- Age rating: 4+
- Requires: iOS 18.5 · 1 MB
- Languages: American English
- Released: 2019-12-17
- Data updated: 2026-06-05
- User reviews in markdown: https://appshunter.io/ios/app/hydro-test-pressure/id1491873084/reviews.md

## What is Hydro Test Pressure?

Hydro-Test Pressure Calculator is a simple, fast, and offline tool designed for engineers, inspectors, and professionals working in the piping, pressure vessel, and process equipment industries.

This app helps you quickly calculate Pressure Vessel Hydro-test Pressure and Piping Hydro-test Pressure based on industry-standard formulas.


Available Calculators

1. Pressure Vessel Hydro-Test Pressure Calculator

Calculate hydro-test pressure for pressure vessels using MAWP/Design Pressure and stress-ratio-based adjustments.

2. Piping Hydro-Test Pressure Calculator

Compute hydro-test pressure for piping systems with appropriate multiplying factors and optional stress-based calculations.


Key Features

Fully Offline — Works without internet.

No Ads — Clean, distraction-free experience.

Fast & User Friendly — Simple interface with instant results.

High Performance — Optimized for quick engineering calculations.

Stress Ratio Support — Option to apply stress-at-test-temperature / stress-at-design-temperature ratio when required.


What You Can Calculate

The app lets you compute hydro-test pressure using:

MAWP (Maximum Allowable Working Pressure) or Design Pressure

Material Stress at Test Temperature

Material Stress at Design Temperature

Automatic ratio-based adjustment when stress at design temperature is lower than at room temperature.


Who Should Use This App

Ideal for professionals working in:

Piping fabrication

Pressure vessel manufacturing

EPC companies

Process plants

Mechanical maintenance & inspection teams

Quality control (QC / NDT) departments


Perfect For

Engineers who need a quick, reliable, and accurate hydro-test pressure calculator—anytime, anywhere, even without internet.


## Version history (last 2 releases)

### 2.0 — 2025-12-02

Upgraded to Higher SDK levels.
Dark Light Theme Supported.
Changes in App UI/UX.
Changes in App Theme.
Changes in App Layout.
Fix Minor Bugs.
Improved Pereformance.

### 1.0 — 2019-12-17

No release notes.

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## More apps by Imran Pinjara

- [Screw Flight Pro](https://appshunter.io/ios/app/screw-flight-pro/id1484488782)
- [Miter Bend Pro](https://appshunter.io/ios/app/miter-bend-pro/id1484821889)
- [Flange Hole Marker Pro](https://appshunter.io/ios/app/flange-hole-marker-pro/id1486290745)
- [Pressure Vessel Heads Pro](https://appshunter.io/ios/app/pressure-vessel-heads-pro/id1486607999)
- [Petal Layout Pro](https://appshunter.io/ios/app/petal-layout-pro/id1486823832)
- [Pump Power Pro](https://appshunter.io/ios/app/pump-power-pro/id1487084383)

All apps by Imran Pinjara: https://appshunter.io/developer/1484488781

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-05.*