# RPN vs Daviz

The clearest difference is price: Daviz at Free against RPN's $2.99. Daviz also leads on update cadence (every 6 days vs every 4 months). RPN's advantage is rating (5.0 vs 2.5) and ratings volume (8 vs 2). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Daviz is free to download; RPN costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RPN holds the better App Store score, 5.0 against 2.5. Both are backed by a comparable volume of ratings — 8 and 2 respectively.

RPN ships an update every 4 months, Daviz every 6 days. The most recent releases landed on November 10, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | RPN | Daviz |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/rpn-65-sd/id1176059659/reviews)** | [2.5 (2 ratings)](https://appshunter.io/ios/app/daviz/id1320607881/reviews) |
| Number of ratings | **8** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 days** |
| Monetization | Paid | **Free** |
| Size | 62 MB | 1 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CuVee Software](https://appshunter.io/developer/424873503) | [Mike Wesemann](https://appshunter.io/developer/285807162) |

## What reviewers say

### RPN

[App page](https://appshunter.io/ios/app/rpn-65-sd/id1176059659)

Experience a faithful simulation of the groundbreaking HP-65 programmable calculator on your iPhone. This app offers virtual program and data cards, a paper tape printer, and a robust card manager. Explore four distinct operating modes, including an enhanced "Super-65" option.

**Highlights:** Virtual program and data cards, Virtual paper tape printer with AirPrint, Database-driven card manager, Create, delete, and organize unlimited cards, Sharing via email, AirDrop, Dropbox, iTunes, Paste and run existing HP-65 listings, Four distinct operating modes

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

**In-app purchases:** none


### Daviz

[App page](https://appshunter.io/ios/app/daviz/id1320607881)

This tool allows users to create data visualizations on iOS devices. It supports data input via URLs, including text files, and integrates with iOS sharing features for direct data transfer.

**Highlights:** Data visualization on iPhone and iPad, Macro language similar to Plot2, Data input via URL, Supports text file data sources, Direct data input via iOS sharing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RPN free?

RPN costs $2.99, with no in-app purchases.

### Is Daviz free?

Daviz is free to download, with no in-app purchases.

### Which has better reviews, RPN or Daviz?

RPN is rated higher. RPN averages 5.0 out of 5 from 8 ratings, while Daviz averages 2.5 from 2 ratings.

### Do RPN or Daviz have ads?

Neither RPN nor Daviz shows ads.

### Which is updated more often, RPN or Daviz?

RPN ships an update every 4 months, and Daviz every 6 days. Most recently, RPN was updated on November 10, 2026 and Daviz on November 5, 2026.

---

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