# RPN vs Expressive MoodBoard

The clearest difference is price: Expressive MoodBoard at Free against RPN's $4.99. RPN's advantage is rating (4.9 vs 1.0) and in-app purchases (none vs 1). On ads and device support there is nothing between them.

Expressive MoodBoard is free to download; RPN costs $4.99 up front. Expressive MoodBoard sells 1 one-off in-app purchase. RPN asks for nothing beyond the download.

RPN holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: RPN has 11 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | RPN | Expressive MoodBoard |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.9 (11 ratings)](https://appshunter.io/ios/app/rpn-97-pro/id816249055/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/expressive-moodboard/id6739766819/reviews) |
| Number of ratings | **11** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 75 MB | 17 MB |
| Requires iOS | **12.0** | 17 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [CuVee Software](https://appshunter.io/developer/424873503) | [晓光 李](https://appshunter.io/developer/1553199200) |

## What reviewers say

### RPN

[App page](https://appshunter.io/ios/app/rpn-97-pro/id816249055)

This app simulates a legendary 1970s programmable calculator, offering advanced features for scientists and engineers. It allows users to run programs, manage virtual cards, and access hundreds of free program cards from its website.

**Highlights:** Virtual program and data cards, Virtual paper tape printer, Database-driven card manager, Create, label, and organize unlimited cards, Effortless saving of card collections, Formatted program listings, Live display of stack and registers

**Features:** macOS Compatibility

**In-app purchases:** none


### Expressive MoodBoard

[App page](https://appshunter.io/ios/app/expressive-moodboard/id6739766819)

Organize and manage your images with advanced tools. Create unlimited mood boards with multi-level folders, tag-based categorization, and image filters. Export your creations as full images to capture every inspiration.

**Highlights:** Multi-level folder structure, Tag-based categorization, Image filters, Guidelines, Histogram, Exportable mood boards

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $5.99 | one-time |


## Frequently asked questions

### Is RPN free?

RPN costs $4.99, with no in-app purchases.

### Is Expressive MoodBoard free?

Expressive MoodBoard is free to download, with in-app purchases available.

### Which has better reviews, RPN or Expressive MoodBoard?

RPN is rated higher. RPN averages 4.9 out of 5 from 11 ratings, while Expressive MoodBoard averages 1.0 from 1 ratings.

### Do RPN or Expressive MoodBoard have ads?

Neither RPN nor Expressive MoodBoard shows ads.

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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.*