# Rivers.run vs Blue Liner Flows

The clearest difference is in-app purchases: Rivers.run at none against Blue Liner Flows's 2. Rivers.run also leads on iOS requirement (15.0 vs 17.6). Blue Liner Flows's advantage is update cadence (weekly vs every 6 weeks) and rating (4.7 vs 4.4). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Blue Liner Flows sells 2 in-app purchases, starting at $6.99 per year. Rivers.run asks for nothing beyond the download.

Blue Liner Flows holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 31 and 42 respectively. Written reviews point the same way: 55% of Rivers.run's written reviews are positive against 64% of Blue Liner Flows's.

Rivers.run ships an update every 6 weeks, Blue Liner Flows weekly. The most recent releases landed on November 8, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Rivers.run | Blue Liner Flows |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (31 ratings)](https://appshunter.io/ios/app/riversrun-river-levels/id1552809249/reviews) | **[4.7 (42 ratings)](https://appshunter.io/ios/app/blue-liner-flows/id6464350766/reviews)** |
| Number of ratings | 31 | **42** |
| Positive reviews | 54.5% of reviews | **64.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 44 MB | 4 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Tucker Willenborg](https://appshunter.io/developer/1552704334) | [Ryan Olson](https://appshunter.io/developer/605279068) |

## What reviewers say

### Rivers.run

[App page](https://appshunter.io/ios/app/riversrun-river-levels/id1552809249)

Access real-time river data including water levels, temperature, and skill level estimates. Discover nearby rivers using GPS, search by various criteria, and utilize interactive maps for navigation. Includes weather overlays for rain tracking.

**Highlights:** Water levels and temperature, Crowdsourced skill level estimates, GPS river discovery, Search by water level, skill, name, Interactive river maps, Weather overlays for rain, Offline access to downloaded data

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

**In-app purchases:** none


### Blue Liner Flows

[App page](https://appshunter.io/ios/app/blue-liner-flows/id6464350766)

Access detailed USGS and NOAA river flow data, including discharge, temperature, and gauge height. Explore rivers with an interactive map, set custom tags for organization, and receive alerts for condition changes. Plan your outdoor activities with integrated weather forecasts.

**Highlights:** River flow data (discharge, temperature, pH), Interactive map with directions, Customizable stream tagging, Real-time condition alerts, Home screen widgets, Integrated weather forecasts

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Annual Subscription | $6.99 | per year |
| Premium Lifetime Edition | $19.99 | one-time |


## Frequently asked questions

### Is Rivers.run free?

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

### Is Blue Liner Flows free?

Blue Liner Flows is free to download, with in-app purchases available.

### Which has better reviews, Rivers.run or Blue Liner Flows?

Blue Liner Flows is rated higher. Rivers.run averages 4.4 out of 5 from 31 ratings, while Blue Liner Flows averages 4.7 from 42 ratings.

### Do Rivers.run or Blue Liner Flows have ads?

Neither Rivers.run nor Blue Liner Flows shows ads.

### Which is updated more often, Rivers.run or Blue Liner Flows?

Rivers.run ships an update every 6 weeks, and Blue Liner Flows weekly. Most recently, Rivers.run was updated on November 8, 2026 and Blue Liner Flows on November 3, 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.*