# Garmin Audio vs Ultramarine

The clearest difference is review sentiment: Garmin Audio at 69% against Ultramarine's 9%. Garmin Audio also leads on rating (4.0 vs 1.6) and update cadence (every 3 months vs every 17 months). Ultramarine's advantage is iOS requirement (8.0 vs 18.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Garmin Audio holds the better App Store score, 4.0 against 1.6. That said, the two scores are not equally well evidenced: Garmin Audio has 461 ratings behind it against 40, so its average is the more settled of the two. Written reviews point the same way: 69% of Garmin Audio's written reviews are positive against 9% of Ultramarine's.

Garmin Audio ships an update every 3 months, Ultramarine every 17 months. The most recent releases landed on November 12, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Garmin Audio | Ultramarine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (461 ratings)](https://appshunter.io/ios/app/garmin-audio/id520377783/reviews)** | [1.6 (40 ratings)](https://appshunter.io/ios/app/ultramarine/id934648828/reviews) |
| Number of ratings | **461** | 40 |
| Positive reviews | **69.5% of reviews** | 8.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 17 months |
| Monetization | Free | Free |
| Size | 55 MB | 10 MB |
| Requires iOS | 18.0 | **8.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Garmin](https://appshunter.io/developer/411046952) | [ASA Electronics, LLC](https://appshunter.io/developer/924302000) |

## What reviewers say

### Garmin Audio

[App page](https://appshunter.io/ios/app/garmin-audio/id520377783)

Control your marine entertainment system wirelessly from your device. Manage music sources, adjust volume zones, and navigate your library with ease. Optimize audio with advanced DSP settings for a premium listening experience on the water.

**Highlights:** Wireless remote control, Music source navigation, Independent volume zone control, Wi-Fi and Bluetooth connectivity, Album art display, Over-the-air software updates, Digital Signal Processing (DSP) setup

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Convenient remote control
- 💡 Great for multi-zone audio control
- 🎨 Intuitive interface
- 🔊 Excellent sound quality

**What reviewers complain about**

- 🐛 Connectivity issues
- 🔍 Inconsistent app performance
- 🔌 Difficulty updating firmware
- 🤖 Lack of Apple Watch support
- 🔇 Volume control problems

**Reported bugs**

- App crashes when adjusting volume
- Bluetooth disconnects frequently
- Fails to detect stereo system
- Inconsistent zone control functionality

**Requested features**

- Apple Watch app
- More customization options
- Improved Bluetooth/WiFi reliability
- Streamlined firmware update process


### Ultramarine

[App page](https://appshunter.io/ios/app/ultramarine/id934648828)

Transform your mobile device into a wireless remote for your Polk Ultramarine stereo system. Control power, volume, radio tuning, Bluetooth streaming, satellite radio, and audio settings directly from your phone or tablet.

**Highlights:** Power on/off, Volume and mute control, AM/FM radio tuning, Bluetooth streaming, SiriusXM control, USB media playback, Audio menu adjustments

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Garmin Audio free?

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

### Is Ultramarine free?

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

### Which has better reviews, Garmin Audio or Ultramarine?

Garmin Audio is rated higher. Garmin Audio averages 4.0 out of 5 from 461 ratings, while Ultramarine averages 1.6 from 40 ratings.

### Do Garmin Audio or Ultramarine have ads?

Neither Garmin Audio nor Ultramarine shows ads.

### Which is updated more often, Garmin Audio or Ultramarine?

Garmin Audio ships an update every 3 months, and Ultramarine every 17 months. Most recently, Garmin Audio was updated on November 12, 2026 and Ultramarine on November 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.*