# Touch RPN calc vs Auto Action

The clearest difference is in-app purchases: Auto Action at none against Touch RPN calc's 10. Auto Action also leads on ads (none vs shown) and update cadence (fortnightly vs every 2 months). Touch RPN calc's advantage is ratings volume (210 vs 3). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Touch RPN calc sells 10 one-off in-app purchases. Auto Action asks for nothing beyond the download.

Auto Action holds the better App Store score, 3.7 against 3.4. That said, the two scores are not equally well evidenced: Touch RPN calc has 210 ratings behind it against 3, so its average is the more settled of the two.

Touch RPN calc ships an update every 2 months, Auto Action fortnightly. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Touch RPN calc | Auto Action |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (210 ratings)](https://appshunter.io/ios/app/touch-rpn-calc/id946171077/reviews) | **[3.7 (3 ratings)](https://appshunter.io/ios/app/auto-action/id1435182006/reviews)** |
| Number of ratings | **210** | 3 |
| Positive reviews | 48.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 30 MB | 56 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Elvis Pfutzenreuter](https://appshunter.io/developer/463497848) | [Auto Avaliar](https://appshunter.io/developer/1355691797) |

## What reviewers say

### Touch RPN calc

[App page](https://appshunter.io/ios/app/touch-rpn-calc/id946171077)

This app offers a powerful RPN calculator with financial and scientific functions, mimicking popular industry-standard models. It includes programming capabilities and expandable flavors for diverse calculation needs.

**Highlights:** RPN financial calculator, RPN scientific calculator, Programming functions, HP-12C emulation, HP-11C emulation, Expandable calculator flavors

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Touch 11i app transfer | Free | one-time |
| Touch Fin app transfer | Free | one-time |
| Touch 15i app transfer | Free | one-time |
| Scientific Basic | $2.99 | one-time |
| Scientific Premium | $3.99 | one-time |
| Computer programmer | $3.99 | one-time |
| Scientific Advanced | $4.99 | one-time |
| Financial Black-Scholes | $4.99 | one-time |
| Financial Premium | $6.99 | one-time |
| Financial Advanced | $6.99 | one-time |

**What reviewers like**

- 🚀 Excellent HP calculator emulation
- 👍 Looks and works like the real thing
- 👍 Portrait and landscape modes
- 👍 Paid version is ad-free
- 👍 Great RPN calculator

**What reviewers complain about**

- 🐛 Ads in free version
- 🐛 Ads appearing in paid version
- 🐛 Incorrect calculations
- 🐛 Landscape mode issues
- 🐛 Inability to clear memory

**Reported bugs**

- Stopped working after iOS upgrade
- Landscape mode not functioning properly
- Ads appearing in paid version

**Requested features**

- Paste feature
- Option to switch between RPN and algebraic modes
- Ability to see stack contents instead of ads in paid version


### Auto Action

[App page](https://appshunter.io/ios/app/auto-action/id1435182006)

This application allows users to generate and complete car evaluations. It streamlines the process of assessing vehicles directly within the app.

**Highlights:** Create car evaluations, Complete requested evaluations, In-app evaluation process

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Touch RPN calc free?

Touch RPN calc is free to download, with in-app purchases available.

### Is Auto Action free?

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

### Which has better reviews, Touch RPN calc or Auto Action?

Auto Action is rated higher. Touch RPN calc averages 3.4 out of 5 from 210 ratings, while Auto Action averages 3.7 from 3 ratings.

### Do Touch RPN calc or Auto Action have ads?

Touch RPN calc shows ads; Auto Action does not.

### Which is updated more often, Touch RPN calc or Auto Action?

Touch RPN calc ships an update every 2 months, and Auto Action fortnightly. Most recently, Touch RPN calc was updated on October 29, 2026 and Auto Action on October 24, 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.*