# System Controls vs TB Devices

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.

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.

## The numbers

| Metric | System Controls | TB Devices |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (12 ratings)](https://appshunter.io/ios/app/system-controls/id1203452611/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Free | — |
| Size | 5 MB | 35 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [SilverLeaf Electronics, Inc.](https://appshunter.io/developer/574200631) | [David Sprecher](https://appshunter.io/developer/1819331386) |

## What reviewers say

### System Controls

[App page](https://appshunter.io/ios/app/system-controls/id1203452611)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


### TB Devices

[App page](https://appshunter.io/ios/app/tb-devices/id6748652884)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is System Controls free?

System Controls is free to download, with no in-app purchases.

### Is TB Devices free?

TB Devices is free to download, with no in-app purchases.

### Do System Controls or TB Devices have ads?

Neither System Controls nor TB Devices shows ads.

### Which is updated more often, System Controls or TB Devices?

System Controls ships an update every 3 months, and TB Devices every 5 months. Most recently, System Controls was updated on September 27, 2026 and TB Devices on October 10, 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.*