FloodWatch vs Floodzilla
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FloodWatch
Monitor real-time river and flood data across the United States. Track river height, discharge, precipitation, and water temperature with data from USGS and NWS. Ideal for property owners, outdoor enthusiasts, and anyone needing flood awareness.
- Real-time river data
- Historical trends and graphs
- Favorites list for gauges
- Nationwide US coverage
- Flood awareness alerts
- Recreation water condition checks
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Whether you live near a river, enjoy kayaking or fishing, or simply want to stay informed about potential flooding, FloodWatch keeps you connected to the latest conditions across the United States. Powered by data from the US Geological Survey (USGS) and National Weather Service (NWS), FloodWatch helps you monitor rivers and streams with precision and confidence. Key Features • Real-Time River Data – Track current river height, discharge, precipitation, and water temperature from thousands of USGS gauges nationwide. • Historical Trends & Graphs – Visualize how river levels, streamflow, rainfall, and temperature change over time. • Favorites List – Save your most important gauges for instant access to the latest readings. • Nationwide Coverage – Explore data for rivers and streams throughout the U.S., including flood-stage information from NWS. • Flood Awareness – Keep watch on flood-prone areas and monitor rising waters before they become a threat. • Great for Recreation – Check water conditions before heading out to fish, paddle, or swim. Only USGS gauges with real-time data capabilities are included, so you’ll always get the most accurate and up-to-date information available. Whether you’re safeguarding your property, planning your next river trip, or simply fascinated by hydrology, FloodWatch gives you the insight to stay prepared when water levels change.
Floodzilla
Get real-time flood conditions, warnings, and advisories for the Snoqualmie Valley. Interactive maps show at-risk areas, and you can access the latest news and updates to stay informed and safe.
- Real-time flood conditions
- Flood warnings and advisories
- Interactive flood maps
- Latest news and updates
- Snoqualmie Valley specific information
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Floodzilla provides real-time flood information for the Snoqualmie Valley, including: - Current flood conditions: See how high the water is at key locations in the valley. - Flood warnings and advisories: Receive alerts when there is a risk of flooding. - Flood maps: View interactive maps of the valley to see which areas are at risk of flooding. - News and updates: Stay up-to-date on the latest flooding information. Download Floodzilla today and stay safe from flooding!
Screenshots
Verdict
The clearest difference is in-app purchases: Floodzilla at none against FloodWatch's 5. Floodzilla also leads on ads (none vs shown) and rating (5.0 vs 4.7). FloodWatch's advantage is ratings volume (314 vs 3). On price, update cadence and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. FloodWatch sells 5 one-off in-app purchases. Floodzilla asks for nothing beyond the download.
Floodzilla holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: FloodWatch has 314 ratings behind it against 3, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 28, 2026 and June 10, 2026 respectively.
| Parameter | FloodWatch | Floodzilla |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (314 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 56.9% of reviews | — |
| Number of ratings | 314 — better | 3 |
| Update frequency | Every 2 months | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 13 MB | 57 MB |
| Age rating | 4+ | 4+ |
| Developer | Brian Deshong | Snoqualmie Valley Preservation Alliance |
Customer experience
FloodWatch
Floodzilla
In-app purchases
FloodWatch
- Tip Level 1$0.99
- Tip Level 2$2.99
- Tip Level 3$5.99
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- Ad Removal$8.99
- Tip Level 4$9.99
Floodzilla
No in-app purchases









