# SML+ vs Mercury Marine

The clearest difference is review sentiment: SML+ at 100% against Mercury Marine's 8%. SML+ also leads on rating (5.0 vs 1.6). On price, ratings volume, 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.

SML+ holds the better App Store score, 5.0 against 1.6. Both are backed by a comparable volume of ratings — 49 and 37 respectively. Written reviews point the same way: 100% of SML+'s written reviews are positive against 8% of Mercury Marine's.

SML+ ships an update every 2 months, Mercury Marine every 3 months. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | SML+ | Mercury Marine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (49 ratings)](https://appshunter.io/ios/app/sml-plus/id1519595178/reviews)** | [1.6 (37 ratings)](https://appshunter.io/ios/app/mercury-marine/id1645100017/reviews) |
| Number of ratings | **49** | 37 |
| Positive reviews | **100.0% of reviews** | 8.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 4 MB | 157 MB |
| Requires iOS | 15.6 | **14.2** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Timothy Barr](https://appshunter.io/developer/1519595180) | [Mercury Marine LLC](https://appshunter.io/developer/1777822540) |

## What reviewers say

### SML+

[App page](https://appshunter.io/ios/app/sml-plus/id1519595178)

Stay informed about Smith Mountain Lake with real-time water levels, temperature, wind forecasts, and marine gas prices. Get alerts, track the ice cream boat, and view historical data for a better lake experience.

**Highlights:** Real-time water level updates, Hourly water temperature readings, Interactive temperature sensor map, Historical water level and temperature charts, Marine gas prices and locations, 5-day wind forecast, Water level and safety alerts

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Mercury Marine

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

This app allows Mercury Marine owners to manage their vessel's propulsion system. View live engine data, track maintenance, locate points of interest, and even lock/unlock your boat remotely. It's your ultimate boating companion for staying informed and in control.

**Highlights:** Live VesselView engine data, Lock & unlock vessel remotely, Track and log maintenance, Locate dealers, marinas, and fuel, View warranty and owner's manuals, Boating checklists and weather forecasts

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SML+ free?

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

### Is Mercury Marine free?

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

### Which has better reviews, SML+ or Mercury Marine?

SML+ is rated higher. SML+ averages 5.0 out of 5 from 49 ratings, while Mercury Marine averages 1.6 from 37 ratings.

### Do SML+ or Mercury Marine have ads?

Neither SML+ nor Mercury Marine shows ads.

### Which is updated more often, SML+ or Mercury Marine?

SML+ ships an update every 2 months, and Mercury Marine every 3 months. Most recently, SML+ was updated on November 3, 2026 and Mercury Marine on November 5, 2026.

---

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