# RiverApp vs Flood Alert Watcher

RiverApp and Flood Alert Watcher both sit at 4.8 stars, but that hides the real split: 79% of RiverApp's written reviews are positive against 13% of Flood Alert Watcher's. RiverApp also leads on ads (none vs shown) and ratings volume (5.6K vs 5). On price, rating, update cadence and in-app purchases there is nothing between them.

Both are free to download. RiverApp sells 3 in-app purchases, starting at $0.99 per month and Flood Alert Watcher sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for RiverApp against 4.8 for Flood Alert Watcher. That said, the two scores are not equally well evidenced: RiverApp has 5.6K ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 79% of RiverApp's written reviews are positive against 13% of Flood Alert Watcher's.

RiverApp ships an update every 2 weeks, Flood Alert Watcher every 3 weeks. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | RiverApp | Flood Alert Watcher |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (5.6K ratings)](https://appshunter.io/ios/app/riverapp-river-levels/id667012473/reviews) | **[4.8 (5 ratings)](https://appshunter.io/ios/app/flood-alert-watcher/id1517218014/reviews)** |
| Number of ratings | **5.6K** | 5 |
| Positive reviews | **79.4% of reviews** | 13.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#112** | — |
| Size | 56 MB | 41 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Florian Bessiere](https://appshunter.io/developer/667012476) | [John Benson](https://appshunter.io/developer/376644555) |

## What reviewers say

### RiverApp

[App page](https://appshunter.io/ios/app/riverapp-river-levels/id667012473)

**Currently charting:** #112 Top Free · Weather, #124 Top Grossing · Weather (US App Store)

Access real-time water levels, flows, and temperatures for rivers worldwide. Ideal for sports enthusiasts and professionals, it offers detailed maps, navigability information, and customizable alerts for over 40,000 hydrometric stations.

**Highlights:** Real-time water levels and flows, Water temperatures, Hydrometric station maps, Customizable alerts, Whitewater course navigability, User-added hazards and courses

**Features:** Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - 1 month subscription | $0.99 | per month |
| Premium - 1 year subscription | $6.99 | per year |
| RiverApp Premium | $29.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🗺️ Comprehensive coverage of rivers
- 📊 Useful data and visualizations
- 🔔 Helpful alerts and notifications
- 💰 Affordable premium upgrade

**What reviewers complain about**

- 🐛 Occasional inaccurate or outdated information
- 🔍 Missing some important river gauges
- 💬 Lack of communication from developers
- 🗺️ Incorrect geographic information for some areas

**Reported bugs**

- Map feature not working due to internet connection issues
- Horizontal lines and color indicators disappearing from graphs
- Inconsistent or unreliable data updates

**Requested features**

- Add more river coverage, especially in underserved regions
- Improve forecast and prediction capabilities
- Implement a journaling or note-taking feature
- Allow for customizable alerts and notifications
- Add support for additional measurement units (e.g., millimeters)


### Flood Alert Watcher

[App page](https://appshunter.io/ios/app/flood-alert-watcher/id1517218014)

Receive real-time flood alerts and weather warnings for the UK. View interactive flood maps, understand warning levels, and get peace of mind with trusted data from the Environment Agency.

**Highlights:** Real-time flood alerts, Interactive flood maps, Environment Agency data, Three warning levels, Instant notification alerts (premium), Ad-free experience (premium)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Annual | $1.99 | per year |
| Annual | $2.99 | per year |


## Frequently asked questions

### Is RiverApp free?

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

### Is Flood Alert Watcher free?

Flood Alert Watcher is free to download, with in-app purchases available.

### Which has better reviews, RiverApp or Flood Alert Watcher?

Flood Alert Watcher is rated higher. RiverApp averages 4.8 out of 5 from 5.6K ratings, while Flood Alert Watcher averages 4.8 from 5 ratings.

### Do RiverApp or Flood Alert Watcher have ads?

Flood Alert Watcher shows ads; RiverApp does not.

### Which is updated more often, RiverApp or Flood Alert Watcher?

RiverApp ships an update every 2 weeks, and Flood Alert Watcher every 3 weeks. Most recently, RiverApp was updated on November 1, 2026 and Flood Alert Watcher on October 29, 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.*