Touch RPN calc vs Auto Action
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Touch RPN calc
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.
- RPN financial calculator
- RPN scientific calculator
- Programming functions
- HP-12C emulation
- HP-11C emulation
- Expandable calculator flavors
Read full descriptionHide full description
Touch RPN is an RPN financial and scientific calculator that implements most features of the industry-standard HP-12C, including programming functions. It also implements a scientific RPN flavor that implements most functions of the beloved 11C. And even more flavors (10C-like, 16C-like) can be purchased within the app.
Auto Action
This application allows users to generate and complete car evaluations. It streamlines the process of assessing vehicles directly within the app.
- Create car evaluations
- Complete requested evaluations
- In-app evaluation process
Read full descriptionHide full description
You can create car evaluations and complete the evaluations requested directly by the application.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Touch RPN calc | Auto Action |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (210 ratings) | 3.7 (3 ratings) — better |
| Positive reviews | 48.1% of reviews | — |
| Number of ratings | 210 — better | 3 |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 30 MB | 56 MB |
| Age rating | 4+ | 4+ |
| Developer | Elvis Pfutzenreuter | Auto Avaliar |
Customer experience
Touch RPN calc
Auto Action
Bugs and requests
Touch RPN calc
Reported bugs
3 issues- Stopped working after iOS upgrade
- Landscape mode not functioning properly
- Ads appearing in paid version
Requested features
3 requests- Paste feature
- Option to switch between RPN and algebraic modes
- Ability to see stack contents instead of ads in paid version
Auto Action
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Touch RPN calc
- Touch 11i app transferFree
- Touch Fin app transferFree
- Touch 15i app transferFree
Show 7 moreShow fewer
- Scientific Basic$2.99
- Scientific Premium$3.99
- Computer programmer$3.99
- Scientific Advanced$4.99
- Financial Black-Scholes$4.99
- Financial Premium$6.99
- Financial Advanced$6.99
Auto Action
No in-app purchases
