# Garmin PowerSwitch™ vs OPTIMA Lithium Bluetooth

Garmin PowerSwitch™ and OPTIMA Lithium Bluetooth both sit at 3.7 stars, but that hides the real split: 57% of Garmin PowerSwitch™'s written reviews are positive against 0% of OPTIMA Lithium Bluetooth's. Garmin PowerSwitch™ also leads on ratings volume (27 vs 3). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 3.7 for Garmin PowerSwitch™ against 3.7 for OPTIMA Lithium Bluetooth. That said, the two scores are not equally well evidenced: Garmin PowerSwitch™ has 27 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 57% of Garmin PowerSwitch™'s written reviews are positive against 0% of OPTIMA Lithium Bluetooth's.

Garmin PowerSwitch™ ships an update every 2 months, OPTIMA Lithium Bluetooth every 3 months. The most recent releases landed on September 5, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Garmin PowerSwitch™ | OPTIMA Lithium Bluetooth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (27 ratings)](https://appshunter.io/ios/app/garmin-powerswitch/id1546758826/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/optima-lithium-bluetooth/id6453360504/reviews) |
| Number of ratings | **27** | 3 |
| Positive reviews | **57.1% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 15 MB | 42 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Garmin](https://appshunter.io/developer/411046952) | [Clarios LLC](https://appshunter.io/developer/1481852921) |

## What reviewers say

### Garmin PowerSwitch™

[App page](https://appshunter.io/ios/app/garmin-powerswitch/id1546758826)

Wirelessly manage and control up to six 12-volt accessories on your vehicle. This app connects to a digital switch box, allowing you to easily turn devices on and off remotely. Ideal for managing lights, pumps, and other accessories from your smartphone.

**Highlights:** Wireless accessory control, Manage up to 6 accessories, Control 12-volt devices, Connect to digital switch box, Remote on/off functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### OPTIMA Lithium Bluetooth

[App page](https://appshunter.io/ios/app/optima-lithium-bluetooth/id6453360504)

Monitor your battery's real-time status, including charge level, voltage, and temperature. Receive safety alerts and customize battery names for easy identification. Connect wirelessly via Bluetooth for convenient access to all essential battery data.

**Highlights:** Real-time State of Charge (SOC), Real-time battery and cell voltages, Real-time internal battery temperature, Battery safety alerts, Customizable battery names

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Garmin PowerSwitch™ free?

Garmin PowerSwitch™ is free to download, with no in-app purchases.

### Is OPTIMA Lithium Bluetooth free?

OPTIMA Lithium Bluetooth is free to download, with no in-app purchases.

### Which has better reviews, Garmin PowerSwitch™ or OPTIMA Lithium Bluetooth?

Garmin PowerSwitch™ is rated higher. Garmin PowerSwitch™ averages 3.7 out of 5 from 27 ratings, while OPTIMA Lithium Bluetooth averages 3.7 from 3 ratings.

### Do Garmin PowerSwitch™ or OPTIMA Lithium Bluetooth have ads?

Neither Garmin PowerSwitch™ nor OPTIMA Lithium Bluetooth shows ads.

### Which is updated more often, Garmin PowerSwitch™ or OPTIMA Lithium Bluetooth?

Garmin PowerSwitch™ ships an update every 2 months, and OPTIMA Lithium Bluetooth every 3 months. Most recently, Garmin PowerSwitch™ was updated on September 5, 2026 and OPTIMA Lithium Bluetooth on June 1, 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.*