# SML+ vs Aura Maintain

The clearest difference is in-app purchases: SML+ at none against Aura Maintain's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Aura Maintain sells 2 in-app purchases, starting at $4.99 per month. SML+ asks for nothing beyond the download.

SML+ ships an update every 2 months, Aura Maintain every 3 months. The most recent releases landed on August 22, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | SML+ | Aura Maintain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (47 ratings)](https://appshunter.io/ios/app/sml-plus/id1519595178/reviews)** | — |
| Number of ratings | **47** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | — |
| Size | 4 MB | 12 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Timothy Barr](https://appshunter.io/developer/1519595180) | [Justin Cohen](https://appshunter.io/developer/1886850944) |

## 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


### Aura Maintain

[App page](https://appshunter.io/ios/app/aura-maintain/id6761618481)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard | $4.99 | per month |
| Pro | $9.99 | per month |


## Frequently asked questions

### Is SML+ free?

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

### Is Aura Maintain free?

Aura Maintain is free to download, with in-app purchases available.

### Do SML+ or Aura Maintain have ads?

Neither SML+ nor Aura Maintain shows ads.

### Which is updated more often, SML+ or Aura Maintain?

SML+ ships an update every 2 months, and Aura Maintain every 3 months. Most recently, SML+ was updated on August 22, 2026 and Aura Maintain on September 14, 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.*