# RPN vs 2Do

The clearest difference is review sentiment: 2Do at 100% against RPN's 50%. 2Do also leads on rating (4.9 vs 4.0) and update cadence (daily vs every 3 months). RPN's advantage is price ($3.99 vs $19.99) and iOS requirement (12.0 vs 18.6). On ads, in-app purchases, monetization model and device support there is nothing between them.

RPN costs $3.99 and 2Do $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

2Do holds the better App Store score, 4.9 against 4.0. Both are backed by a comparable volume of ratings — 4 and 18 respectively. Written reviews point the same way: 50% of RPN's written reviews are positive against 100% of 2Do's.

RPN ships an update every 3 months, 2Do daily. The most recent releases landed on October 20, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | RPN | 2Do |
| --- | --- | --- |
| Price | **$3.99** | $19.99 |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/rpn-65-pro/id1033260498/reviews) | **[4.9 (18 ratings)](https://appshunter.io/ios/app/2do-to-do-list-tasks-and-notes/id1470067606/reviews)** |
| Number of ratings | 4 | **18** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Daily** |
| Monetization | Paid | Paid |
| Size | 86 MB | 165 MB |
| Requires iOS | **12.0** | 18.6 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [CuVee Software](https://appshunter.io/developer/424873503) | [Beehive Innovations Services](https://appshunter.io/developer/285944186) |

## What reviewers say

### RPN

[App page](https://appshunter.io/ios/app/rpn-65-pro/id1033260498)

Experience a faithful simulation of the groundbreaking HP-65 programmable calculator on your iPad. This app offers virtual program and data cards, a powerful card manager, and includes 170 original HP programs to get you started.

**Highlights:** Virtual program and data cards, Virtual paper tape printer, Database-driven card manager, Create, delete, label, and organize cards, Share via email, AirDrop, Dropbox, print, Paste and run existing HP-65 listings, Live display of stack and registers, Four operational modes including 'Super-65'

**Features:** macOS Compatibility

**In-app purchases:** none


### 2Do

[App page](https://appshunter.io/ios/app/2do-to-do-list-tasks-and-notes/id1470067606)

This task management app offers a fluid interface with deep features for organizing daily tasks and projects. It supports natural language input, quick capture methods, and flexible organization with lists, tags, and smart searches. Designed for iPad, it provides a desktop-grade experience with full keyboard and multitasking support.

**Highlights:** Natural language input for task creation, Desktop-grade multitasking on iPad, Quick capture via widgets and Siri, Markdown notes with collected links, Flexible repeat options and start dates, Smart lists for saved searches, Tagging system for context filtering

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is RPN free?

RPN costs $3.99, with no in-app purchases.

### Is 2Do free?

2Do costs $19.99, with no in-app purchases.

### Which has better reviews, RPN or 2Do?

2Do is rated higher. RPN averages 4.0 out of 5 from 4 ratings, while 2Do averages 4.9 from 18 ratings.

### Do RPN or 2Do have ads?

Neither RPN nor 2Do shows ads.

### Which is updated more often, RPN or 2Do?

RPN ships an update every 3 months, and 2Do daily. Most recently, RPN was updated on October 20, 2026 and 2Do on October 29, 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.*