FloodWatch vs Rainmonitor
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.
Rainmonitor
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Flood Bangkok is a mobile application for rainfall and flood monitoring in Bangkok in real time from everywhere. Current rainfall and flood situation as well as 3-hr nowcast are available for preparing and decision making for daily life. Moreover, user can inform current flood situation via this application to Bangkok Metropolitan Administration's officers in order to solve the flood situation.
Screenshots
Verdict
The clearest difference is in-app purchases: Rainmonitor at none against FloodWatch's 5. Rainmonitor also leads on ads (none vs shown) and iOS requirement (15.0 vs 26.0). On price 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. Rainmonitor asks for nothing beyond the download.
| Parameter | FloodWatch | Rainmonitor |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (314 ratings) — better | — |
| Positive reviews | 57.6% of reviews | — |
| Number of ratings | 314 — better | — |
| Update frequency | Every 2 months | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 13 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Brian Deshong | BMA Queue |
Bugs and requests
FloodWatch
Reported bugs
19 issues- App crashes on opening
- App crashes when updating levels
- App crashes when scrolling through favorites
- App crashes a lot
- App kicks out when viewing favorites
Show 14 moreShow fewer
- Map keeps returning to current location
- Layout changed, not preferred
- Does not work since September 11
- Update didn't resolve problem
- App kicks out when trying to access
- New update made nothing work
- Interface not intuitive
- Gauges not appearing on map initially
- Full page ads impede navigation
- App doesn't work at all
- No data or functions
- Inaccurate and missing major points
- App crashes on initial launch
- App crashes when trying to scroll thru favorites
Requested features
21 requests- Add alerts for flood stage
- Add Lock Screen widgets
- Add search bar for gauges
- Add CFS readings
- Add alerts for flow rate
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- Add historical data query
- Add data extractor to email
- Add link to data source website
- Add more information on the gage itself
- Add average conditions or trends
- Add push notifications
- Add ability to email charts
- Add automatic surfing to USGS website
- Add flood level for each river
- Add ability to send push notification for flooding potential
- Add discharge data
- Add complications for watch faces
- Add ability to remove ALL ads
- Add a "tell friends" function
- Add more sensors to pop up
- Add ability to get notified when water reaches a certain level in a certain area
Rainmonitor
Not enough reviews yet to summarise bugs or requests.
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
Rainmonitor
No in-app purchases









