System Controls vs 4
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
System Controls
Monitor and control vehicle devices connected to an RVC bus via a web browser. This application provides a quick and easy connection to the LR web interface for seamless management.
- Web browser-based control
- Supports Wifi communication with LR devices
- Monitors and controls RVC bus devices
- Quick and easy connection to LR web interface
- RVC enabled vehicle support
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System Control is a web browser-based application to support Wifi communication with LR devices from SilverLeaf Electronics, Inc. The LR implements a web server and RVC interface. In this way, the users can monitor and control all the devices on the RVC bus in their RVC enabled vehicles from the web browser. The beauty of System Control is to supply a quick and easy connection to the LR web interface.
4
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Information at your fingertips! This app gives you direct access to your account balance, location and contract information. It also gives you the ability to store and process payment and request service work and deliveries directly through the app.
Screenshots
Verdict
The clearest difference is update cadence: System Controls at every 3 months against 4's every 7 months. 4's advantage is iOS requirement (12.2 vs 14.0). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
System Controls ships an update every 3 months, 4 every 7 months. The most recent releases landed on October 13, 2026 and October 1, 2026 respectively.
| Parameter | System Controls | 4 |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (12 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Every 3 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 12.2 — better |
| Further details — not scored | ||
| Size | 5 MB | 56 MB |
| Age rating | 17+ | 4+ |
| Developer | SilverLeaf Electronics, Inc. | Rural Computer Consultants, Inc. |
In-app purchases
System Controls
No in-app purchases
4
No in-app purchases
