# Mercury Marine vs Timeusb

The clearest difference is rating: Timeusb at 2.3 against Mercury Marine's 1.6. Timeusb also leads on monetization model (free vs free with in-app purchases). Mercury Marine's advantage is update cadence (every 3 months vs every 9 months) and ratings volume (37 vs 3). On price, ads, in-app purchases and device support there is nothing between them.

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

Timeusb holds the better App Store score, 2.3 against 1.6. That said, the two scores are not equally well evidenced: Mercury Marine has 37 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 9% of Mercury Marine's written reviews are positive against 0% of Timeusb's, so the app with the better star average is not the one people write more warmly about.

Mercury Marine ships an update every 3 months, Timeusb every 9 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Mercury Marine | Timeusb |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.6 (37 ratings)](https://appshunter.io/ios/app/mercury-marine/id1645100017/reviews) | **[2.3 (3 ratings)](https://appshunter.io/ios/app/timeusb/id6654913724/reviews)** |
| Number of ratings | **37** | 3 |
| Positive reviews | **9.1% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 9 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 156 MB | 53 MB |
| Requires iOS | 14.2 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Mercury Marine LLC](https://appshunter.io/developer/1777822540) | [Timeusb](https://appshunter.io/developer/1764255879) |

## What reviewers say

### Mercury Marine

[App page](https://appshunter.io/ios/app/mercury-marine/id1645100017)

This app enhances boating experiences by providing real-time vessel data, trip planning tools, and maintenance tracking. It acts as a digital hub for managing your boat's performance, fuel, and safety, even without a direct module connection.

**Highlights:** Live Data & Gauges, Range and Runtime Estimate, Descriptive Alarms, Track & Log Maintenance, Digital Mapping/Chart, Boating Checklists, Preferred Dealer Connection

**Features:** Vision Pro support

**In-app purchases:** none


### Timeusb

[App page](https://appshunter.io/ios/app/timeusb/id6654913724)

Monitor your battery's real-time status, including SOC, voltage, current, and temperature. Get estimated charging completion and remaining usage times to manage your power efficiently and support a low-carbon lifestyle.

**Highlights:** Real-time SOC monitoring, Voltage and current tracking, Temperature monitoring, Estimated charging completion, Remaining usage time estimation, Bluetooth connectivity

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mercury Marine free?

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

### Is Timeusb free?

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

### Which has better reviews, Mercury Marine or Timeusb?

Timeusb is rated higher. Mercury Marine averages 1.6 out of 5 from 37 ratings, while Timeusb averages 2.3 from 3 ratings.

### Do Mercury Marine or Timeusb have ads?

Neither Mercury Marine nor Timeusb shows ads.

### Which is updated more often, Mercury Marine or Timeusb?

Mercury Marine ships an update every 3 months, and Timeusb every 9 months. Most recently, Mercury Marine was updated on October 24, 2026 and Timeusb on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*