# Blue Switch vs TRIGGER ACS Plus

The clearest difference is rating: Blue Switch at 3.8 against TRIGGER ACS Plus's 1.9. TRIGGER ACS Plus's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Blue Switch sells 1 one-off in-app purchase. TRIGGER ACS Plus asks for nothing beyond the download.

Blue Switch holds the better App Store score, 3.8 against 1.9. Both are backed by a comparable volume of ratings — 43 and 42 respectively. Written reviews complicate that: 17% of Blue Switch's written reviews are positive against 21% of TRIGGER ACS Plus's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 23, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | Blue Switch | TRIGGER ACS Plus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (43 ratings)](https://appshunter.io/ios/app/blue-switch/id828280876/reviews)** | [1.9 (42 ratings)](https://appshunter.io/ios/app/trigger-acs-plus/id1361409621/reviews) |
| Number of ratings | **43** | 42 |
| Positive reviews | 16.7% of reviews | **21.4% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 39 MB | 14 MB |
| Requires iOS | 18.0 | **8.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Vitalij Schaefer](https://appshunter.io/developer/393749449) | [Oracle](https://appshunter.io/developer/1448002966) |

## What reviewers say

### Blue Switch

[App page](https://appshunter.io/ios/app/blue-switch/id828280876)

Control 2, 4, or 8 channel Bluetooth BLE relay modules from your iPhone or iPad. Assign custom names to modules and individual relays for easy identification and management. Enhance security by changing the default password.

**Highlights:** Control 2, 4, or 8 channel relay modules, Bluetooth BLE connectivity, Assign custom module aliases, Assign custom relay aliases, Change default password for security, Connect to multiple modules

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $17.99 | one-time |


### TRIGGER ACS Plus

[App page](https://appshunter.io/ios/app/trigger-acs-plus/id1361409621)

Control wireless accessory systems for vehicles, including lighting and power functions. Customize settings, monitor battery voltage, and set alerts for low power. Simplify accessory installation by eliminating the need for extensive wiring.

**Highlights:** Control wireless accessory controllers, Manage power and dimming functions, Strobe feature for lighting, Set switch function (toggle/momentary), Customize accessory names, Monitor battery voltage, Set low-voltage cut-off and alerts

**In-app purchases:** none


## Frequently asked questions

### Is Blue Switch free?

Blue Switch is free to download, with in-app purchases available.

### Is TRIGGER ACS Plus free?

TRIGGER ACS Plus is free to download, with no in-app purchases.

### Which has better reviews, Blue Switch or TRIGGER ACS Plus?

Blue Switch is rated higher. Blue Switch averages 3.8 out of 5 from 43 ratings, while TRIGGER ACS Plus averages 1.9 from 42 ratings.

### Do Blue Switch or TRIGGER ACS Plus have ads?

Blue Switch shows ads; TRIGGER ACS Plus does not.

### Which is updated more often, Blue Switch or TRIGGER ACS Plus?

Blue Switch ships an update every 3 months, and TRIGGER ACS Plus every 3 months. Most recently, Blue Switch was updated on September 23, 2026 and TRIGGER ACS Plus on June 11, 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.*