# MSU vs GaugeWatcher

The clearest difference is update cadence: GaugeWatcher at weekly against MSU's every 3 months. MSU's advantage is iOS requirement (13.0 vs 26.0). 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.

MSU ships an update every 3 months, GaugeWatcher weekly. The most recent releases landed on November 11, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | MSU | GaugeWatcher |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.8 (9 ratings)](https://appshunter.io/ios/app/gaugewatcher/id6498313776/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | — | Free |
| Size | 14 MB | 29 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Mississippi State University Extension Service](https://appshunter.io/developer/580535523) | [Andrew Althage](https://appshunter.io/developer/1631629264) |

## What reviewers say

### MSU

[App page](https://appshunter.io/ios/app/msu-e-experts-directory/id1499149570)

**Features:** macOS Compatibility

**In-app purchases:** none


### GaugeWatcher

[App page](https://appshunter.io/ios/app/gaugewatcher/id6498313776)

Access real-time river flow data without needing an account or encountering advertisements. Discover nearby gauges, monitor flow rates, and save your preferred locations for quick access.

**Highlights:** Real-time river flow data, Discover nearby gauges, Check flow rates, Bookmark favorite gauges, No signup required, Ad-free experience

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

**In-app purchases:** none


## Frequently asked questions

### Is MSU free?

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

### Is GaugeWatcher free?

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

### Do MSU or GaugeWatcher have ads?

Neither MSU nor GaugeWatcher shows ads.

### Which is updated more often, MSU or GaugeWatcher?

MSU ships an update every 3 months, and GaugeWatcher weekly. Most recently, MSU was updated on November 11, 2026 and GaugeWatcher on November 8, 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.*