System Controls vs TB Devices
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.
TB Devices
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Manage your TweetyBot devices in the App! You can add all the devices from TweetyBot and monitor their Information
Screenshots
Verdict
System Controls and TB Devices are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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, TB Devices every 5 months. The most recent releases landed on September 27, 2026 and October 10, 2026 respectively.
| Parameter | System Controls | TB Devices |
|---|---|---|
| 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 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 5 MB | 35 MB |
| Age rating | 17+ | 4+ |
| Developer | SilverLeaf Electronics, Inc. | David Sprecher |
In-app purchases
System Controls
No in-app purchases
TB Devices
No in-app purchases
Questions
Is System Controls free?
Is TB Devices free?
Do System Controls or TB Devices have ads?
Which is updated more often, System Controls or TB Devices?
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