Comparison

RainAware vs Flash Weather

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

RainAware

Get precise rain timing and severe weather alerts for your location. Visualize weather data with interactive graphs and maps, and customize notifications to stay informed about changing conditions.

Highlights
  • Rain Clock with precise timing
  • Customizable rain and severe weather notifications
  • Interactive temperature and wind graphs
  • Weather map overlays with watches and warnings
  • Satellite and radar imagery
  • Forecast clock for 8-day outlook
  • Site lists for nearby locations
Read full description

Know exactly when rain will start and stop at your location. RainAware, the original hyperlocal rain app with RainClock, push alerts, live radar, satellite, lightning & storm tracking. ***** INCLUDED IN THE STANDARD VERSION ***** • Rain Clock See rain timing for your location up to 3 hours ahead. Example: “Rain starts in 1 hr 30 min and ends at 4:30 PM.” Background images match the weather outside. • Alerts & notifications Get notified when rain is coming or ending, or when severe weather threatens. Customize alert timing, rain-duration thresholds, proximity settings, and alert frequency. • Regional radar, satellite, and 1-hour precipitation View live weather imagery over a regional domain, then move the domain anywhere to inspect weather there. • Watches, warnings, and advisories View active hazards including severe storms, floods, winter weather, wind, fire, marine alerts, and more. • Weather map overlays Analyze the map with overlays for surface observations, lightning, hurricane tracks, storm reports, moving ship observations, and more. • Landscape mode & fast looping Use landscape mode for a larger map with extra pan and zoom controls. Long-press to burst-loop imagery faster and spot trends. • Current conditions ticker Cycles through the nearest surface observation and also shows nearby lightning, precipitation, and storm reports when relevant. Tap icons to jump to the location. • Interactive graphs View 36-hour trend graphs for temperature, wind, cloud cover, precipitation amount and type. • Forecast Clock See the next 8 days in a concise Today/Tonight format, including sunrise, sunset, and moon phase. • Site lists Quickly check weather for nearby cities, airports, ballparks, speedways, golf courses, and more. Stadium views include wind direction for in, out, or across-field awareness. • Drawing tools Draw on the map, add text, overlay it on weather imagery, and share. • Weather badges Badges show when rapid changes in rain, temperature, clouds, or wind are forecast. Configurable. • Deep customization RainAware includes extensive settings so you can tune the app to your workflow. ***** SUBSCRIPTION FEATURES ***** Subscriptions are available in-app and work across supported devices. • Full-map access View the full weather map without regional limits. • Storm cell tracking Filter storm cells and view motion, hail potential, rotation, and more. • National radar products Includes Echo Tops, Hail Swaths, and Rotation Tracks. • Single-site radar Access reflectivity and velocity products, with options to merge Hawaii, Alaska, and Puerto Rico radar into the national view. • Expanded satellite imagery Adds water vapor and colorized visible imagery for enhanced cloud-top analysis. • More alert types Add lightning proximity alerts, severe storm report alerts, and alerts for another location. • RainPro tool Interactively refine precipitation motion for even more precise rain timing. • Environmental fields Display threat areas, VAD wind profiles, isobars, CAPE, updraft helicity, 500 & 850 mb charts & more. • Warning & observation monitor Filter and sort warnings and surface observations. • Advanced surface observations Plot thousands of stations, ships, and buoys, including water temperature and wave height. • Longer loops Animate up to 36 frames and as much as 12 hours ahead on capable devices. • Aviation mode Use FAA sectional maps as an underlay, display flight rules at stations, and view winds aloft at VWP locations. • Advanced drawing tools Draw fronts, time-match drawings to imagery, and create lines, polygons, circles, and squares. • Faster data updates Get more frequent radar, satellite, and surface data refreshes. • Performance controls Manage memory, cache behavior, panning, and image tiling. Coverage is best across the USA and southern Canada. Satellite and local radar coverage also extends from Hawaii to the Caribbean. https://www.rainaware.com/rainaware_coverage_map.webp

About

Flash Weather

Get precise, AI-powered weather alerts for lightning, heat risk, and radar. Receive instant notifications tailored to your location, with customizable settings for safety and planning outdoor activities. Includes hourly and 7-day forecasts.

Highlights
  • AI lightning prediction
  • Real-time heat risk metrics
  • Current and future radar maps
  • Smart push notifications
  • Hourly and 7-day forecasts
  • Customizable warning settings
Features
Currently charting
Read full description

FLASH predicts lightning before the first strike. With a patented algorithm infused with Deep Learning, you'll always know when to head inside, and when it's safe to head back out. Whether you are outdoors for work, training, sports, or recreation, FLASH is your edge against the elements. LIGHTNING PREDICTION LIKE NEVER BEFORE Our patented algorithm, infused with deep learning, forecasts where lightning will be before it hits. - Live Activities let you track the storm from your Lock Screen - FirstStrike tells you when the strike will be in your backyard - All Clear gives a simple yes/no answer to "Can we go back outside?" - 5 Hour Lightning Forecast gives extra time to decide on afternoon & evening plans CURRENT AND FUTURE RADAR High resolution current and future radar with lightning, watches and warnings, plus Flash Weather's FirstStrike, All Clear, and Lightning Probability forecast maps. - Up to the minute current radar and current lightning - 18-hour future radar in 15-minute increments, updating hourly - FirstStrike, All Clear, and Lightning Probability maps updating every 2 minutes SMART PUSH NOTIFICATIONS Get alerted when lightning is detected or forecast near you. - Forecast-based warnings before a strike - Customizable lightning proximity alerts for every saved location NFHS-STANDARD, EXCLUSIVE HEAT AND WBGT FORECASTING Plan your day with real-time WBGT readings, critical for outdoor safety. FLASH also forecasts heat stress 7 days out so you can avoid dangerous conditions before they start. - Live WBGT values for your exact location - Heat risk color coding for easy interpretation - 7-day forward-looking heat stress outlook HOURLY AND 7-DAY FORECASTS High and low temperatures, precipitation chance and amount, wind, dew point, cloud cover, and UV index. - Hourly and daily forecasts out 7 days - Graphical temperature, precipitation, and wind outlooks Developed by Flash Weather. Learn more at flashweather.ai Questions or suggestions: support@flashweather.ai Some features require a Flash Premium subscription. After a 7-day free trial, Premium is $3.99/mo or $39.99/yr. Privacy Policy: https://flashweather.ai/privacy/ Terms of Service: https://flashweather.ai/legal/ Auto-renewable subscriptions are governed by Apple's standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

RainAware4 screens
Flash Weather4 screens

Verdict

The call

The clearest difference is price: Flash Weather at Free against RainAware's $4.99. Flash Weather also leads on rating (4.4 vs 3.9) and review sentiment (65% vs 51%). RainAware's advantage is ratings volume (1.1K vs 103) and chart position (#8 vs #113). On update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Flash Weather is free to download; RainAware costs $4.99 up front. RainAware sells 3 in-app purchases, starting at $6.99 per month and Flash Weather sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Flash Weather holds the better App Store score, 4.4 against 3.9. That said, the two scores are not equally well evidenced: RainAware has 1.1K ratings behind it against 103, so its average is the more settled of the two. Written reviews point the same way: 51% of RainAware's written reviews are positive against 65% of Flash Weather's.

UpkeepUpdate frequency

RainAware ships an update every 2 weeks, Flash Weather fortnightly. Both last shipped on October 16, 2026.

Scorecard6 real differences · 5 level
RainAware versus Flash Weather: the parameters behind the verdict, then further details
ParameterRainAwareFlash Weather
Price$4.99Free — better
Rating3.9 (1.1K ratings)4.4 (103 ratings) — better
Positive reviews50.6% of reviews64.6% of reviews — better
Number of ratings1.1K — better103
Update frequencyEvery 2 weeksFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
Best chart rank#8 — better#113
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size43 MB72 MB
Age rating4+4+
DeveloperRainAware LLCFlash Scientific Technology

Customer experience

RainAware

All ratings1,068 ratings
Positive71.2%
Neutral5.2%
Negative23.6%
Written reviews172 reviews
Positive50.6%
Neutral9.3%
Negative40.1%

Flash Weather

All ratings103 ratings
Positive84.5%
Neutral3.9%
Negative11.7%
Written reviews48 reviews
Positive64.6%
Neutral6.3%
Negative29.2%

Bugs and requests

RainAware

Reported bugs

3 issues
  • Login screen freezes
  • Incompatible with older devices
  • JSON could not be serialized because of error: The data couldn't be read because it isn't in the correct format. [47

Requested features

3 requests
  • Dark mode option
  • Advanced analytics dashboard
  • Push notifications to alert you to rain within 3 hours

Flash Weather

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

RainAware

Subscriptions2
  • RainAware Suite - Monthly$6.991 Month
  • RainAware Suite - Annual$69.991 Year
One-time1
  • RainAware Suite - Day Pass$0.99
2 purchases

Flash Weather

Subscriptions2
  • Flash Premium Monthly7 Days trial$3.991 Month
  • Flash Premium Yearly7 Days trial$39.991 Year

Questions

Is RainAware free?
RainAware costs $4.99, and also offers in-app purchases.
Is Flash Weather free?
Flash Weather is free to download, with in-app purchases available.
Which has better reviews, RainAware or Flash Weather?
Flash Weather is rated higher. RainAware averages 3.9 out of 5 from 1.1K ratings, while Flash Weather averages 4.4 from 103 ratings.
Do RainAware or Flash Weather have ads?
Neither RainAware nor Flash Weather shows ads.
Which is updated more often, RainAware or Flash Weather?
RainAware ships an update every 2 weeks, and Flash Weather fortnightly. Most recently, RainAware was updated on October 16, 2026 and Flash Weather on October 16, 2026.
Which is more popular, RainAware or Flash Weather?
RainAware currently peaks at #8 in the App Store charts, and Flash Weather at #113. Chart position reflects recent download velocity rather than total install base.

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