A vs CalcEngineer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
A
This app simplifies structural analysis for engineers and architects. It uses Direct Stiffness Analysis to calculate shear forces, bending moments, and deflections for beams, trusses, and frames. Get instant results and detailed reports for documentation and learning.
- Direct Stiffness Analysis
- Beam, truss, and frame analysis
- Shear force, bending moment, deflection calculations
- User-friendly interface
- Detailed analysis reports
- Educational resource
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A-Projects: Structural Analysis Simplified Unlock the power of structural analysis with A-Projects, your ultimate companion for engineers and architecture enthusiasts! Whether you’re designing beams, trusses, or frames, our app utilizes Direct Stiffness Analysis to deliver accurate solutions for shear forces, bending moments, and deflections. Key Features: User-Friendly Interface: Intuitive navigation that allows you to easily input data and visualize results. Comprehensive Design Tools: Analyze various structures including beams, trusses, and frames with precision. Instant Results: Get quick calculations for shear forces, bending moments, and deflections at your fingertips. Detailed Reports: Generate in-depth analysis reports to help in documentation and presentations. Educational Resource: Ideal for students and professionals alike, enhancing learning and reinforcing concepts in structural engineering. Transform your approach to structural design with smart analysis tools that fit in your pocket. Download A-Projects today and step confidently into the world of structural engineering!
CalcEngineer
This app provides professional engineering calculations for compressed air systems. It helps engineers and technicians determine CFM requirements, size compressors and tanks, and analyze pressure drops for optimized pneumatic systems.
- CFM Calculator
- Compressor & Tank Sizing
- Pressure Drop Analysis
- Flow Velocity & Pipe Sizing
- Multiple CFM Entries
- General Engineering Calculator Suite
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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.
Screenshots
Verdict
The clearest difference is review sentiment: CalcEngineer at 100% against A's 38%. CalcEngineer also leads on price (Free vs $8.99) and rating (5.0 vs 3.0). On ratings volume, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
CalcEngineer is free to download; A costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.
CalcEngineer holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 38% of A's written reviews are positive against 100% of CalcEngineer's.
A ships an update every 3 weeks, CalcEngineer every 2 days. The most recent releases landed on September 23, 2026 and September 12, 2026 respectively.
| Parameter | A | CalcEngineer |
|---|---|---|
| Price | $8.99 | Free — better |
| Rating | 3.0 (2 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 38.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 2 |
| Update frequency | Every 3 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 17 — better |
| Further details — not scored | ||
| Size | 59 MB | 10 MB |
| Age rating | 4+ | 9+ |
| Developer | Jutarus Ratanasethakul | Justin Bush |
Customer experience
A
CalcEngineer
In-app purchases
A
No in-app purchases
CalcEngineer
No in-app purchases
