R Analyst vs Duct Construction
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
R Analyst
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.
- On-device R language execution
- Code editor with auto-complete
- Syntax highlighting
- Includes 30+ built-in R packages
- Help command for documentation
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R Analyst is a R language engine that can execute R code in devices directly(do not require to connect to a backend server), the buildin pacakges:utils,methods,graphics,grDevices,stats,grid,lattice,nlme,MASS,rpart,splines,cluster,foreign,parallel,spatial,survival,boot,stats4,KernSmooth,nnet,tools,class,zoo,lmtest,gridExtra,tseries,quadprog,mvtnorm,multcomp,Hmisc,rms,psych,GPArotation,gof,Matrix,arules. Include a code editor for R language, can type help command to show help document, keyword auto-complete/highlight limitation: cannot install package.
Duct Construction
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.
- 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
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Get all duct construction and reinforcement options by entering the duct size and system pressure class. The aim of the app is to save time spent browsing through tables and texts to determine suitable options, by relying on the most widely used standards and providing a condensed list of available duct construction options. The results are based on galvanized steel duct sheets conforming to ASTM A653 & A924. The app does not cover all aspects of duct construction, as it is intended as a guide; Reliance on related standards, as well as good engineering sense is the basis for proper design. Features: 1. Duct sizes from 2" to 120" 2. Pressure classes 0.5 in.wg, 1 in.wg, 2 in.wg, 3 in.wg and 4 in.wg. 3. Provides the duct weights for each option per linear foot. 4. Provides required duct gauge and reinforcement spacing. 5. Clear illustration for each reinforcement type, as well as dimensions. 6. Simple and effective UI design. Roadmap / Upcoming updates: 1. SI units. 2. More pressure class options. 3. User will be able to save and retreive duct data for future reference. 3. More Reinforcement options, including tie-rodding. Request a feature: welmurr@icloud.com
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | R Analyst | Duct Construction |
|---|---|---|
| Price | $4.99 | $0.99 — better |
| Rating | 3.0 (11 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 35.7% of reviews — better | 0.0% of reviews |
| Number of ratings | 11 — better | 1 |
| Update frequency | Every 4 months — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #194 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.4 — better | 17.6 |
| Further details — not scored | ||
| Size | 1.0 GB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | 友辉 严 | Wassim Murr |
Customer experience
R Analyst
Duct Construction
In-app purchases
R Analyst
No in-app purchases
Duct Construction
No in-app purchases
Questions
Is R Analyst free?
Is Duct Construction free?
Which has better reviews, R Analyst or Duct Construction?
Do R Analyst or Duct Construction have ads?
Which is updated more often, R Analyst or Duct Construction?
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