# R Analyst vs Duct Construction

The clearest difference is rating: R Analyst at 3.0 against Duct Construction's 1.0. R Analyst also leads on review sentiment (36% vs 0%) and ratings volume (11 vs 1). Duct Construction's advantage is price ($0.99 vs $4.99) and chart position (#194 vs unranked). On ads, in-app purchases, monetization model and device support there is nothing between them.

R Analyst costs $4.99 and Duct Construction $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

R Analyst holds the better App Store score, 3.0 against 1.0. That said, the two scores are not equally well evidenced: R Analyst has 11 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 36% of R Analyst's written reviews are positive against 0% of Duct Construction's.

R Analyst ships an update every 4 months, Duct Construction every 10 months. The most recent releases landed on July 7, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | R Analyst | Duct Construction |
| --- | --- | --- |
| Price | $4.99 | **$0.99** |
| Rating | **[3.0 (11 ratings)](https://appshunter.io/ios/app/r-analyst/id1173749340/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/duct-construction/id6443518338/reviews) |
| Number of ratings | **11** | 1 |
| Positive reviews | **35.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 10 months |
| Monetization | Paid | Paid |
| Best chart rank | — | **#194** |
| Size | 1.0 GB | 1 MB |
| Requires iOS | **11.4** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [友辉 严](https://appshunter.io/developer/1083042860) | [Wassim Murr](https://appshunter.io/developer/1474939474) |

## What reviewers say

### R Analyst

[App page](https://appshunter.io/ios/app/r-analyst/id1173749340)

This app provides a powerful R language engine for executing code directly on your device without needing a backend server. It includes a code editor with helpful features like keyword auto-completion and syntax highlighting, along with a comprehensive set of built-in packages.

**Highlights:** On-device R language execution, Code editor with auto-complete, Syntax highlighting, Includes 30+ built-in R packages, Help command for documentation

**Features:** macOS Compatibility

**In-app purchases:** none


### Duct Construction

[App page](https://appshunter.io/ios/app/duct-construction/id6443518338)

**Currently charting:** #194 Top Paid · Productivity (US App Store)

This app helps determine duct construction and reinforcement options based on duct size and system pressure class. It provides condensed lists of suitable options, saving time spent on manual calculations and table lookups. Results are based on industry standards for galvanized steel duct sheets.

**Highlights:** Duct size range from 2" to 120", Pressure classes up to 4 in.wg, Calculates duct weights per linear foot, Determines required duct gauge and reinforcement spacing, Clear illustrations for reinforcement types, Simple and effective UI design

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is R Analyst free?

R Analyst costs $4.99, with no in-app purchases.

### Is Duct Construction free?

Duct Construction costs $0.99, with no in-app purchases.

### Which has better reviews, R Analyst or Duct Construction?

R Analyst is rated higher. R Analyst averages 3.0 out of 5 from 11 ratings, while Duct Construction averages 1.0 from 1 ratings.

### Do R Analyst or Duct Construction have ads?

Neither R Analyst nor Duct Construction shows ads.

### Which is updated more often, R Analyst or Duct Construction?

R Analyst ships an update every 4 months, and Duct Construction every 10 months. Most recently, R Analyst was updated on July 7, 2026 and Duct Construction on September 9, 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.*