# RiverApp vs Smog Detect

The clearest difference is in-app purchases: Smog Detect at none against RiverApp's 3. RiverApp's advantage is chart position (#110 vs unranked) and iOS requirement (17.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. RiverApp sells 3 in-app purchases, starting at $0.99 per month. Smog Detect asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | RiverApp | Smog Detect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5.6K ratings)](https://appshunter.io/ios/app/riverapp-river-levels/id667012473/reviews)** | — |
| Number of ratings | **5.6K** | — |
| Positive reviews | 79.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#110** | — |
| Size | 56 MB | 3 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Florian Bessiere](https://appshunter.io/developer/667012476) | [ANTONIN PAVLIK](https://appshunter.io/developer/1872492381) |

## What reviewers say

### RiverApp

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

**Currently charting:** #110 Top Grossing · Weather, #158 Top Free · 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- 🐛 Occasional inaccurate or outdated information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)


### Smog Detect

[App page](https://appshunter.io/ios/app/smog-detect/id6758353585)

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

**In-app purchases:** none


## Frequently asked questions

### Is RiverApp free?

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

### Is Smog Detect free?

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

### Do RiverApp or Smog Detect have ads?

Neither RiverApp nor Smog Detect shows ads.

### Which is updated more often, RiverApp or Smog Detect?

RiverApp ships an update every 2 weeks, and Smog Detect every 2 weeks. Most recently, RiverApp was updated on October 29, 2026 and Smog Detect on October 28, 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.*