Comparison

NYC Advance Warning System vs Gotham Edifice

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

Head to head
About

NYC Advance Warning System

This app provides timely alerts about hazards and emergencies in New York City. It is designed for organizations serving individuals with disabilities and those with access and functional needs. Additional capabilities are available via its website.

Highlights
  • Emergency hazard alerts
  • Notifications for people with disabilities
  • NYC-specific information
  • Partnership with city agencies
  • Website integration for more features
Features
Read full description

The NYC Advance Warning System mobile app alerts organizations that serve people with disabilities and others with access and functional needs to various types of hazards and emergencies in New York City. The NYC Advance Warning System is managed by the New York City Emergency Management Department in partnership with the New York City Department of Health and Mental Hygiene and the New York City Mayor's Office for People with Disabilities. You can also visit our website and register there for additional capabilities and access to information: https://www.advancewarningsystemnyc.org

About

Gotham Edifice

Access detailed public information about New York City addresses, including physical data, city agency records, and zoning details. Features include address search, map-based discovery, and the ability to favorite locations for quick reference.

Highlights
  • Address details and physical data
  • City agency records (DOB, 311, HPD)
  • Zoning and district information
  • Map-based address search
  • Autocomplete address search
  • Favorite locations
  • ACRIS document access (subscription)
Features
Read full description

Gotham Edifice lets you view public information about New York City addresses. You can see details about the physical location, its zones and districts, as well as lists of related data from various City Agencies. The displayed information includes: * Address details (borough, block, lot, building ID number, etc.) * Physical data (speed limit, street width, etc.) * Hurricane Evacuation Zone, Police & Fire data, Sanitation schedules * Election zones and other district data Additionally, the following items from City agencies are listed: * Department of Buildings (DOB) Job Filings * DOB Complaints * DOB Violations * 311 Service Requests * Department of Housing Preservation and Development (HPD) Violations ** NEW ** * ACRIS documents (with subscription) Search by tapping the map. Alternatively, the address search screen features autocomplete, for speedy address finding. There is also a list of recent searches, for convenience. Any of the found items can be marked as a favorite. Favorite items will show up on the map for easy reference. The data is pulled from NYC’s Geoclient API (https://api-portal.nyc.gov/api-details#api=geoclient), and from NYC Open Data (https://opendata.cityofnewyork.us/). Please note that more comprehensive and current data can be found on a given City agency’s website. This app is provided as a public service. There is no tracking or data collection. The code is written for iOS in Swift, using Apple’s frameworks, with no third-party libraries.

Screenshots

NYC Advance Warning System4 screens
Gotham Edifice3 screens

Verdict

The call

The clearest difference is in-app purchases: NYC Advance Warning System at none against Gotham Edifice's 4. NYC Advance Warning System also leads on iOS requirement (9.0 vs 17.6). Gotham Edifice's advantage is update cadence (every 8 days vs every 5 months) and ratings volume (9 vs 3). On price, rating, review sentiment and ads 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

Both are free to download. Gotham Edifice sells 4 in-app purchases, starting at $19.99 per year. NYC Advance Warning System asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for NYC Advance Warning System against 5.0 for Gotham Edifice. Both are backed by a comparable volume of ratings — 3 and 9 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

NYC Advance Warning System ships an update every 5 months, Gotham Edifice every 8 days. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
NYC Advance Warning System versus Gotham Edifice: the parameters behind the verdict, then further details
ParameterNYC Advance Warning SystemGotham Edifice
PriceFreeFree
Rating5.0 (3 ratings)5.0 (9 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings39 — better
Update frequencyEvery 5 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better17.6
Further details — not scored
Size16 MB3 MB
Age rating12+4+
DeveloperDepartment of Information Technology And TelecommJoshua Kaden

Customer experience

NYC Advance Warning System

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Gotham Edifice

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

NYC Advance Warning System

No in-app purchases

4 purchases

Gotham Edifice

Subscriptions1
  • ACRIS integration7 Days trial$19.991 Year
One-time3
  • One dollar tip$0.99
  • Two dollar tip$1.99
  • Five dollar tip$4.99

Questions

Is NYC Advance Warning System free?
NYC Advance Warning System is free to download, with no in-app purchases.
Is Gotham Edifice free?
Gotham Edifice is free to download, with in-app purchases available.
Which has better reviews, NYC Advance Warning System or Gotham Edifice?
NYC Advance Warning System and Gotham Edifice are both rated 5.0 out of 5 on the App Store, from 3 and 9 ratings respectively.
Do NYC Advance Warning System or Gotham Edifice have ads?
Neither NYC Advance Warning System nor Gotham Edifice shows ads.
Which is updated more often, NYC Advance Warning System or Gotham Edifice?
NYC Advance Warning System ships an update every 5 months, and Gotham Edifice every 8 days. Most recently, NYC Advance Warning System was updated on November 2, 2026 and Gotham Edifice on November 3, 2026.

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