# A vs CalcEngineer

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.

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.

## The numbers

| Metric | A | CalcEngineer |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/a-projects/id1469182938/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/calcengineer/id6748969344/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 38.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Paid | **Free** |
| Size | 59 MB | 10 MB |
| Requires iOS | 18.0 | **17** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Jutarus Ratanasethakul](https://appshunter.io/developer/1454380236) | [Justin Bush](https://appshunter.io/developer/1828308327) |

## What reviewers say

### A

[App page](https://appshunter.io/ios/app/a-projects/id1469182938)

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.

**Highlights:** Direct Stiffness Analysis, Beam, truss, and frame analysis, Shear force, bending moment, deflection calculations, User-friendly interface, Detailed analysis reports, Educational resource

**In-app purchases:** none


### CalcEngineer

[App page](https://appshunter.io/ios/app/calcengineer/id6748969344)

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.

**Highlights:** CFM Calculator, Compressor & Tank Sizing, Pressure Drop Analysis, Flow Velocity & Pipe Sizing, Multiple CFM Entries, General Engineering Calculator Suite

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is A free?

A costs $8.99, with no in-app purchases.

### Is CalcEngineer free?

CalcEngineer is free to download, with no in-app purchases.

### Which has better reviews, A or CalcEngineer?

CalcEngineer is rated higher. A averages 3.0 out of 5 from 2 ratings, while CalcEngineer averages 5.0 from 2 ratings.

### Do A or CalcEngineer have ads?

Neither A nor CalcEngineer shows ads.

### Which is updated more often, A or CalcEngineer?

A ships an update every 3 weeks, and CalcEngineer every 2 days. Most recently, A was updated on September 23, 2026 and CalcEngineer on September 12, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*