# IEQ Calculator(Office) vs R Programming Compiler

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.

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.

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.

## The numbers

| Metric | IEQ Calculator(Office) | R Programming Compiler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.4 (94 ratings)](https://appshunter.io/ios/app/r-programming-compiler/id1158038782/reviews)** |
| Number of ratings | — | **94** |
| Positive reviews | — | 53.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 35 months | **Every 2 weeks** |
| Monetization | — | Freemium |
| Size | 1 MB | 17 MB |
| Requires iOS | **14.4** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Fishball Studio](https://appshunter.io/developer/418104683) | [Ketan Appa](https://appshunter.io/developer/576435759) |

## What reviewers say

### IEQ Calculator(Office)

[App page](https://appshunter.io/ios/app/ieq-calculatoroffice/id443713768)

**Features:** macOS Compatibility

**In-app purchases:** none


### R Programming Compiler

[App page](https://appshunter.io/ios/app/r-programming-compiler/id1158038782)

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:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Subscription | $4.99 | per month |
| 6 Months Subscription | $19.99 | per 6 months |
| 1 Year Subscription | $29.99 | per year |


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