Comparison

Central Alert Repository vs StormBase

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

Head to head
About

Central Alert Repository

Access a real-time archive of nationwide emergency alerts, including severe weather warnings and official emergency messages. Stay informed about local threats and national crises with instant updates and a searchable history.

Highlights
  • Real-time emergency alert archive
  • Nationwide alert access
  • Severe weather warnings
  • Searchable alert history
  • Instant updates
  • User-friendly interface
Features
Read full description

Stay aware with Central Alert Repository, the real-time emergency alert archive by the Global Weather & EAS Society. Central Alert Repository is the ultimate real-time emergency alert archive, developed by the Global Weather & EAS Society. Stay ahead of emergencies with instant access to official alerts, severe weather warnings, and other emergency messages from across the nation. Whether tracking local threats or monitoring national crises, Central Alert Repository ensures you're always informed. With a user-friendly interface, searchable archives, and real-time updates, Central Alert Repository is your trusted source for staying prepared and aware.

About

StormBase

This app consolidates high-impact weather and space weather information from official NOAA and NWS sources. It provides forecast outlooks, alert maps, status feeds, and technical tools in a single, organized interface for quick access to critical U.S. weather intelligence.

Highlights
  • SPC convective and fire weather outlooks
  • WPC Excessive Rainfall Outlooks
  • SWPC space weather alerts and forecasts
  • GOES satellite imagery with animation
  • U.S. Alerts dashboard with search/filter
  • Radar network status monitoring
  • NWS local forecast tools and text products
Features
Currently charting
Read full description

StormBase is a one-time $0.99 purchase, with no nonsense subscriptions or recurring fees. It helps you track high-impact weather and space weather in one clean, fast app. Built around official NOAA and NWS products*, StormBase brings forecast outlooks, live alert maps, status feeds, and technical tools into a single workflow so you can check what matters quickly and with context. Whether you are a weather enthusiast, spotter, pilot, forecaster, or emergency-focused user, StormBase is designed to reduce tab-hopping and keep core U.S. weather intelligence organized, current, mobile friendly, and easy to interact with. Features: - SPC coverage in one place: Day 1-8 convective outlooks, fire weather outlooks, watches, mesoscale discussions, local storm reports, partner regional graphics, and experimental guidance. - WPC products: PMD discussions, Excessive Rainfall Outlooks (Day 1-5), QPF Day 1-7 and multi-day totals, plus an interactive surface analysis viewer. - CPC outlook suite: 6-10 and 8-14 outlooks, monthly/seasonal outlooks, drought outlooks, and Hazards products including Day 3-7 composite Hazards - SWPC space weather view: SWPC alert messages and forecast scales, X-ray trends, solar probabilities, sunspot/solar region data, and numerous solar imagery loops. - Satellite imagery: GOES East/West, Himawari, and EUMETSAT selection, multiple sectors including mesoscale, multiple bands, and animated loop playback with latest-frame start options. - Fully interactive earthquake viewer map. - U.S. Alerts dashboard: National alerts map plus grouped active warnings, watches, and advisories with search, filters, and sort options. - Radar network status: Monitor radar site health, see outage/status messaging, and search/filter stations quickly. - Soundings archive browser: View observed radiosonde products by station, date, and cycle and sounding climatology. - Historical Events browser: NOAA SWDI historical weather events with year/month/day drill-down, event type filtering, impact sorting, metadata, and narrative views. - NWS local forecast tools: saved U.S. locations with point forecasts, hourly graphs, active alerts, local storm reports, AFD summaries, office graphics, and recent observation history. - NWS WFO Text Products: Browse WFO AFD/CLI/CLM/CLA bulletins by office, quick-jump search to specific WHO and product, plus ADM/ADA administrative messages. - SPC Mesoanalysis viewer: layered SPC mesoanalysis products in a dedicated in-app browser. - SPC Archive tools: browse archived convective outlooks, archived MCDs, archived watches, archived mesoanalysis, and archived preliminary storm reports, including historical images and report tables. - Observations + models: MAG observations, sector/product/cycle loops, SKEWT, and MAG model guidance with run comparisons. - Aviation Weather Center Products: METAR/TAF search plus a native AWC graphics viewer for aviation weather products. - Moon phases page for saved or current location. - iCloud sync across devices for favorite app pages. - Favorites and quick access: Pin frequently used products and jump back fast. - Customizable layout: Configure menu destinations and viewing preferences for your workflow. - Time and refresh controls: Current UTC time, Local/UTC display options and foreground refresh behavior. - Built-in glossary and references - Native app language support in Japanese, Korean, French, English GB, and English AU. - Privacy-minded design: No ad SDKs, no profiling analytics, and locally stored preferences/caches. Widget Suite: Favorites widget, SPC Outlook widget, Radar Status widget, WFO Bulletin widget, METAR Widgets, Situational Summary widgets (Home Screen + Lock Screen) Data and attribution:
 StormBase uses official public weather sources including NOAA/NWS/NCEP centers. *StormBase is not affiliated with or endorsed by NOAA/NWS.

Screenshots

Central Alert Repository3 screens
StormBase4 screens

Verdict

The call

The clearest difference is price: Central Alert Repository at Free against StormBase's $0.99. Central Alert Repository also leads on in-app purchases (none vs 3) and ratings volume (53 vs 4). StormBase's advantage is update cadence (every 5 days vs every 5 weeks) and rating (5.0 vs 4.8). On review sentiment, ads 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

Central Alert Repository is free to download; StormBase costs $0.99 up front. StormBase sells 3 one-off in-app purchases. Central Alert Repository asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

StormBase holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Central Alert Repository has 53 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 94% of Central Alert Repository's written reviews are positive against 100% of StormBase's.

UpkeepUpdate frequency

Central Alert Repository ships an update every 5 weeks, StormBase every 5 days. The most recent releases landed on October 15, 2026 and October 12, 2026 respectively.

Scorecard8 real differences · 3 level
Central Alert Repository versus StormBase: the parameters behind the verdict, then further details
ParameterCentral Alert RepositoryStormBase
PriceFree — better$0.99
Rating4.8 (53 ratings)5.0 (4 ratings) — better
Positive reviews93.8% of reviews100.0% of reviews — better
Number of ratings53 — better4
Update frequencyEvery 5 weeksEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterPaid
Best chart rank—#184 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.4
Further details — not scored
Size9 MB36 MB
Age rating4+4+
DeveloperGlobal Weather & EAS Society, LLCAbdullah Sheikh

Customer experience

Central Alert Repository

All ratings53 ratings
Positive96.2%
Neutral1.9%
Negative1.9%
Written reviews32 reviews
Positive93.8%
Neutral3.1%
Negative3.1%

StormBase

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Central Alert Repository

Reported bugs

1 issue
  • Spammed with non-local alerts

Requested features

2 requests
  • Location filtering
  • Additional features and improvements

StormBase

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Central Alert Repository

No in-app purchases

3 purchases

StormBase

One-time3
  • Shower Tip$1.99
  • Downburst Tip$4.99
  • Microburst Tip$9.99

Questions

Is Central Alert Repository free?
Central Alert Repository is free to download, with no in-app purchases.
Is StormBase free?
StormBase costs $0.99, and also offers in-app purchases.
Which has better reviews, Central Alert Repository or StormBase?
StormBase is rated higher. Central Alert Repository averages 4.8 out of 5 from 53 ratings, while StormBase averages 5.0 from 4 ratings.
Do Central Alert Repository or StormBase have ads?
Neither Central Alert Repository nor StormBase shows ads.
Which is updated more often, Central Alert Repository or StormBase?
Central Alert Repository ships an update every 5 weeks, and StormBase every 5 days. Most recently, Central Alert Repository was updated on October 15, 2026 and StormBase on October 12, 2026.

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