# CalcEngineer — Pro Engineering Calculators

> Professional engineering calculator for compressed air systems and general engineering. (iPhone/iPad app by Justin Bush.)

- Source: https://appshunter.io/ios/app/calcengineer/id6748969344 (this page in markdown: same URL + `.md`)
- Developer: [Justin Bush](https://appshunter.io/developer/1828308327)
- Category: Productivity, Utilities
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 9+
- Requires: iOS 17 · 10 MB
- Languages: American English
- Released: 2025-08-19
- Data updated: 2026-06-27
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/calcengineer/id6748969344/reviews.md

## What is CalcEngineer?

CalcEngineer - Professional Engineering Calculators

The ultimate compressed air system calculator for engineers, technicians, and professionals. Calculate CFM requirements, size compressors and tanks, analyze pressure drops, and optimize your pneumatic systems with engineering-grade precision.

KEY FEATURES:
• CFM Calculator - Air actuator airflow calculations with real-time results
• Compressor Sizing - Size compressors for your specific air demands
• Tank Sizing - Calculate air receiver tank requirements and capacity
• Pressure Drop Analysis - Determine pressure loss in pipes and fittings
• Flow Velocity Calculator - Calculate fluid velocity for optimal system design
• Pipe Sizing - Optimize pipe diameter selection for efficiency
• Multiple CFM Entries - Add multiple air demands for complex systems
• Engineering Calculator Suite - Additional tools for mechanical, electrical, chemical, and thermal engineering

PROFESSIONAL TOOLS:
• Real-time calculations using industry-standard formulas
• Pre-filled values that transfer between calculators
• Imperial and metric unit support with automatic conversion
• Engineering-grade accuracy for professional applications
• Clean, intuitive interface designed for daily use

PERFECT FOR:
• Industrial engineers and maintenance teams
• System designers and consultants
• Engineering students and educators
• Manufacturing and facility managers
• HVAC professionals and technicians

Built by Justin Bush | JB CRE8IV - Professional engineering calculation solutions.

## Key features

- CFM Calculator
- Compressor & Tank Sizing
- Pressure Drop Analysis
- Flow Velocity & Pipe Sizing
- Multiple CFM Entries
- General Engineering Calculator Suite

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/calcengineer/id6748969344/reviews.md

### 5/5 — insane

*2025-08-21*

I’m not sure what I was expecting, but not anything this robust yet super user friendly. Thank you.

## Frequently asked questions about CalcEngineer

### What is CalcEngineer used for?

CalcEngineer is a professional engineering calculator designed for compressed air systems. It helps users calculate CFM requirements, size compressors and tanks, analyze pressure drops, and optimize pneumatic systems with engineering-grade precision.

### What types of engineering calculations does CalcEngineer offer?

Beyond compressed air systems, CalcEngineer includes an engineering calculator suite with tools for mechanical, electrical, chemical, and thermal engineering, providing real-time calculations using industry-standard formulas.

### Does CalcEngineer support different units of measurement?

Yes, CalcEngineer supports both Imperial and metric units and offers automatic conversion between them, making it versatile for global engineering applications.

### Is CalcEngineer suitable for students?

Yes, CalcEngineer is perfect for engineering students and educators, offering engineering-grade accuracy and an intuitive interface for daily use and learning.

### What devices is CalcEngineer available on?

CalcEngineer is available on iPhone and iPad, offering a clean and intuitive interface designed for daily professional use.

### How often is CalcEngineer updated?

The latest version of CalcEngineer is 1.1, which was last updated on August 21, 2025. Updates typically bring improvements and new features.

### What is the user sentiment for CalcEngineer?

Based on available data, CalcEngineer has a perfect rating of 5.0 stars from 2 ratings, indicating a highly positive user sentiment.

### Does CalcEngineer have ads?

No, CalcEngineer does not contain advertisements, providing an uninterrupted calculation experience for its users.

## Version history (last 2 releases)

### 1.1 — 2025-08-21

Fixes:

- If user didn’t have the Apple Mail app installed on their device when selecting submit in the Support submission form, the app would crash. The app will now use whatever the default mail app is set to on the device.

- Minor UI/UX adjustments and enhancements.

### 1.0 — 2025-08-19

No release notes.

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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 2026-06-27.*