Comparison

IEQ Calculator(Office) vs R Programming Compiler

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

IEQ Calculator(Office)

Features
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IEQ calculator (Office) provides you an easier alternative to estimate the indoor environmental quality (IEQ) in office environment. You can examine the IEQ performance of an office by simply inputting several preset indoor environment parameters. The environmental performance of the office is expressed via a 5-star benchmarking scale (i.e. 5-stars BEST office, 1-star WORST office). This application is particularly useful for building management officers. Development team: Dr. LT Wong Dr. KW Mui Mr. HC Yu Mr. CT Cheung IEQ Research Team, Department of Building Services Engineering, The Hong Kong Polytechnic University Sources: Wong LT, Mui KW (2009). An energy performance assessment for indoor environmental quality (IEQ) acceptance in air-conditioned offices. Energy Conversion and Management 50, 1362 – 1367.

About

R Programming Compiler

Write and execute R code directly on your mobile device. Ideal for learning, testing code snippets, and statistical computing. Features include syntax highlighting, package management, and plotting capabilities.

Highlights
  • Compile and run R programs
  • Supports plotting and graphing
  • Advanced source code editor
  • Custom keyboard for R characters
  • Install and manage R packages
  • Language reference guide
Features
Read full description

Write R code directly on your iPhone, iPad and iPod Touch! This app is ideal for learning and testing code snippets! R is a programming language and software environment for statistical computing and graphics supported by the R Foundation for Statistical Computing. The R language is widely used among statisticians and data miners for developing statistical software and data analysis Features: - Compile and run your program - Supports plotting and graphing - View program output or detailed error - Select and run chunk of codes - Custom keyboard for easy input of frequently used characters - Optimized for connecting with external physical/bluetooth keyboard - Advanced source code editor with syntax highlighting and line numbers - Open, save, import and share R files - Language reference - Access thousands of packages - Install additional packages from CRAN and Bioconductor (BiocManager) Limitations: - Internet connection is required for compilation - Maximum program running time is 20s - One file can be run at a time - Some file system, network and graphics functions may be limited - This is a batch compiler; interactive programs, for instance swirl, are not supported. If your program provides an input prompt, enter the input in the Input tab prior to compilation. See the Reference tab in the app for code examples. GET FULL ACCESS Upgrade to a Premium Membership and Receive the Following Ongoing Value: • No ads • Unlimited plots • Install packages • Latest Compilers If you choose to purchase a subscription, payment will be charged to your iTunes account, and your account will be charged within 24-hours prior to the end of the free trial or current period. Subscription with a free trial period will automatically renew to a paid subscription. Any unused portion of a free trial period (if offered) will be forfeited when you purchase a premium subscription during the free trial period. You can cancel the automatic renewal of your subscription at any time by going to your settings in the iTunes store after purchase. The cancellation will take effect the day after the last day of the current subscription period, and you will be downgraded to the free service. Terms & Conditions: https://kappsmart.com/rcompiler/terms.html Privacy Policy: https://kappsmart.com/rcompiler/privacy_policy.html

Screenshots

IEQ Calculator(Office)1 screens
R Programming Compiler4 screens

Verdict

The call

The clearest difference is in-app purchases: IEQ Calculator(Office) at none against R Programming Compiler's 3. IEQ Calculator(Office) also leads on ads (none vs shown). R Programming Compiler's advantage is update cadence (every 2 weeks vs every 35 months). On price, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. R Programming Compiler sells 3 in-app purchases, starting at $4.99 per month. IEQ Calculator(Office) asks for nothing beyond the download.

UpkeepUpdate frequency

IEQ Calculator(Office) ships an update every 35 months, R Programming Compiler every 2 weeks. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard3 real differences · 7 level
IEQ Calculator(Office) versus R Programming Compiler: the parameters behind the verdict, then further details
ParameterIEQ Calculator(Office)R Programming Compiler
PriceFreeFree
Rating—3.4 (94 ratings) — better
Positive reviews—53.4% of reviews
Number of ratings—94 — better
Update frequencyEvery 35 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS14.4 — better15.0
Further details — not scored
Size1 MB17 MB
Age rating4+4+
DeveloperFishball StudioKetan Appa

In-app purchases

None

IEQ Calculator(Office)

No in-app purchases

3 purchases

R Programming Compiler

Subscriptions3
  • 1 Month Subscription$4.991 Month
  • 6 Months Subscription$19.996 Months
  • 1 Year Subscription$29.991 Year

Questions

Is IEQ Calculator(Office) free?
IEQ Calculator(Office) is free to download, with no in-app purchases.
Is R Programming Compiler free?
R Programming Compiler is free to download, with in-app purchases available.
Do IEQ Calculator(Office) or R Programming Compiler have ads?
R Programming Compiler shows ads; IEQ Calculator(Office) does not.
Which is updated more often, IEQ Calculator(Office) or R Programming Compiler?
IEQ Calculator(Office) ships an update every 35 months, and R Programming Compiler every 2 weeks. Most recently, IEQ Calculator(Office) was updated on November 1, 2026 and R Programming Compiler on November 2, 2026.

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