Lines & Points vs HydraAtlas
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lines & Points
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Lines & Points helps in collecting data
HydraAtlas
This app provides detailed flood risk information for any US location using official FEMA data. It offers real-time updates on stream gauges, weather alerts, and radar, helping users make informed decisions about potential flood hazards.
- FEMA flood zone mapping
- USGS stream gauge readings
- National Weather Service alerts
- Interactive weather radar
- Save monitored locations
- Emergency preparedness info
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The purpose of this app is to help inform users of where flood risk exists. You will be able to pull up official US FEMA Flood zone information and run an analysis for any location in the United States. This app primariliy depends on and uses Open Data from the U.S. Government. Therefore, it's really only applicable in the United States, for now. HydraAtlas is your comprehensive flood monitoring companion. Get real-time data from official sources, including: FEMA flood zones, USGS stream gauges, Rain Gauges, real-time Weather, and National Weather Service alerts. Key Features: Live FEMA flood zone mapping Real-time USGS stream gauge readings National Weather Service weather alerts Interactive weather radar Save important locations for monitoring Emergency preparedness information HydraAtlas combines official government data sources to help you make informed decisions about flood risks in your area. Perfect for homeowners, travelers, and anyone who needs reliable flood information. Data sources: FEMA, USGS, National Weather Service
Screenshots
Verdict
The clearest difference is update cadence: HydraAtlas at every 4 days against Lines & Points's every 15 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Lines & Points ships an update every 15 months, HydraAtlas every 4 days. The most recent releases landed on September 18, 2026 and July 3, 2026 respectively.
| Parameter | Lines & Points | HydraAtlas |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 15 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 164 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Kumar Navulur | Kevin Bullock |
In-app purchases
Lines & Points
No in-app purchases
HydraAtlas
No in-app purchases
