RPN vs ELCON smartACCESS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RPN
This utility app functions as a reverse Polish notation calculator. Users input numbers and operations using a stack-based interface to perform calculations. It's designed for straightforward mathematical tasks.
- Reverse Polish Notation (RPN) input
- Stack-based operation
- Intuitive digit and operation buttons
- Clear result display
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Simple reverse polish notation calculator. To make an operation you tap the number using the digit buttons. When you want to insert the number into the stack you press the orange button "Enter". When you're done inserting the numbers just tap the operation to do it. The result will be displayed but not put again into stack. Example: 6+7 is 6 enter, 7 enter +
ELCON smartACCESS
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we can provide a Bluetooth key to replace the traditional physical key. You can also generate new Bluetooth keys or keyboard passwords and send them to the visitors via phone, to remotely control your locks.
Screenshots
Verdict
The clearest difference is in-app purchases: ELCON smartACCESS at none against RPN's 1. ELCON smartACCESS also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). RPN's advantage is update cadence (every 6 weeks vs every 15 months). On price and ads 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. RPN sells 1 one-off in-app purchase. ELCON smartACCESS asks for nothing beyond the download.
RPN ships an update every 6 weeks, ELCON smartACCESS every 15 months. The most recent releases landed on October 3, 2026 and October 8, 2026 respectively.
| Parameter | RPN | ELCON smartACCESS |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Every 6 weeks — better | Every 15 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPod, Apple Watch — better |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 339 MB |
| Age rating | 4+ | 4+ |
| Developer | Tomas Stankiewicz Baldassarri | ELCON Sicherheitstechnik GmbH |
In-app purchases
RPN
- Stack LCD$0.49
ELCON smartACCESS
No in-app purchases
