# Flood Alert Watcher vs RiverFlows

The clearest difference is rating: Flood Alert Watcher at 4.8 against RiverFlows's 1.0. Flood Alert Watcher also leads on ratings volume (5 vs 1). RiverFlows's advantage is ads (none vs shown) and update cadence (every 3 days vs every 3 weeks). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Flood Alert Watcher sells 3 in-app purchases, starting at $0.99 per month and RiverFlows sells 2 in-app purchases, starting at $1.49 per month. Whichever you choose, the download price is not the number that matters.

Flood Alert Watcher holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Flood Alert Watcher has 5 ratings behind it against 1, so its average is the more settled of the two.

Flood Alert Watcher ships an update every 3 weeks, RiverFlows every 3 days. The most recent releases landed on September 27, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Flood Alert Watcher | RiverFlows |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/flood-alert-watcher/id1517218014/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/riverflows/id1585695448/reviews) |
| Number of ratings | **5** | 1 |
| Positive reviews | 13.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 41 MB | 99 MB |
| Requires iOS | 18.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [John Benson](https://appshunter.io/developer/376644555) | [jon magnar nesvik](https://appshunter.io/developer/1579195328) |

## What reviewers say

### 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 |


### RiverFlows

[App page](https://appshunter.io/ios/app/riverflows/id1585695448)

This app provides comprehensive river information for anglers in Norway, Sweden, Denmark, and Scotland. It offers water flow, tidal data, and user-submitted photos and videos. Users can also find parking and fishing spot locations, and track their catches and fishing cards.

**Highlights:** River search, Water flow information, Tidal information (Norway), Videos and live streams, User photos, Location finder, Catch tracking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.49 | per month |
| Premium | $12.99 | per year |


## Frequently asked questions

### Is Flood Alert Watcher free?

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

### Is RiverFlows free?

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

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

Flood Alert Watcher is rated higher. Flood Alert Watcher averages 4.8 out of 5 from 5 ratings, while RiverFlows averages 1.0 from 1 ratings.

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

Flood Alert Watcher shows ads; RiverFlows does not.

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

Flood Alert Watcher ships an update every 3 weeks, and RiverFlows every 3 days. Most recently, Flood Alert Watcher was updated on September 27, 2026 and RiverFlows on September 19, 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.*