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ZIP Code API VS Authy

Compare ZIP Code API VS Authy and see what are their differences

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ZIP Code API logo ZIP Code API

REST API for US ZIP, ZIP+4, and Canadian postal codes. Single unified endpoint covers address validation and standardization, radius search (centroid haversine and true spatial polygon intersection), point-to-point distance, autocomplete/typeah

Authy logo Authy

Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.
  • ZIP Code API Landing page
    Landing page //
    2026-05-21

API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America โ€” no separate APIs by country or data type.

What it does

  • Address validation and standardization โ€” production-grade parser with ZIP+4 append, refreshed monthly
  • Radius search โ€” centroid haversine and true spatial polygon intersection. Returns ZIPs/FSAs within range, with per-result pct_inside overlap percentage for spatial queries
  • Unified lookup endpoint โ€” accepts US ZIP, ZIP+4, Canadian FSA, full Canadian postal codes, or latitude/longitude inputs
  • Autocomplete/typeahead โ€” cities, counties, metros, states, FSAs, ZIPs
  • Point-to-point distance โ€” between any two postal points
  • Census ACS demographics โ€” 2011โ€“2024, 542 fields per ZIP across income, education, housing, social, and economic profiles
  • Boundary lookups โ€” Census tracts, congressional districts, state legislative areas, school districts โ€” with computed intersection percentages per ZIP

What makes it different

  • Licensed commercial data โ€” not commodity or scraped sources
  • Canadian postal coverage โ€” most peers in this space are US-only
  • True spatial radius โ€” not just centroid haversine
  • 14 years of historical ACS depth via API โ€” unusual outside of raw Census downloads
  • One endpoint for all of North America โ€” no country-detection or input-routing logic to maintain on the client side

Pricing

  • Free โ€” 2,500 lookups/day, no credit card required, no expiry
  • Developer โ€” $49/mo, 100K credits, 300/min
  • Professional โ€” $149/mo, 350K credits, 300/min
  • Business โ€” $499/mo, 1.5M credits, 600/min
  • Credit packs โ€” one-time, from 25K ($19) up to 2M ($799)

Resources

  • Authy Landing page
    Landing page //
    2021-10-05

ZIP Code API features and specs

  • Comprehensive ZIP Code Data
    The ZIP Code API from zip-codes.com provides extensive data including ZIP code details, city information, state data, and geographic coordinates, making it a thorough resource for location-based lookups.
  • Multiple Lookup Options
    The API supports various types of lookups including ZIP code to city/state, city/state to ZIP code, distance calculations between ZIP codes, and radius searches, offering flexible querying capabilities.
  • Easy Integration
    The API uses standard REST-based HTTP requests and returns data in commonly used formats like JSON and XML, making it straightforward to integrate into most applications and programming languages.
  • Distance and Radius Calculations
    The API includes built-in functionality for calculating distances between ZIP codes and finding ZIP codes within a specified radius, which is valuable for store locators, shipping estimates, and proximity-based features.
  • Well-Documented Endpoints
    The API provides clear documentation for its various endpoints and parameters, helping developers understand available features and implement them correctly without extensive trial and error.

Authy features and specs

  • Multi-device synchronization
    Authy allows users to sync their 2FA tokens across multiple devices, which provides a convenient way to access tokens from phones, tablets, and desktops.
  • Encrypted backups
    Authy provides encrypted backups of the 2FA tokens to the cloud, ensuring that users can recover their tokens in case of device loss or damage.
  • Offline usage capability
    Authy can generate 2FA codes even when the userโ€™s device is offline, providing access to tokens without requiring an active internet connection.
  • Desktop app available
    Authy offers a desktop application that allows users to manage and use their 2FA tokens directly from their computer, enhancing accessibility and usability.
  • Security features
    Authy includes advanced security features such as PIN protection and biometric login options, adding an additional layer of security to the 2FA tokens.

Possible disadvantages of Authy

  • Dependency on cloud service
    Authyโ€™s cloud-based backup and multi-device synchronization features create a dependency on their cloud service, which may raise privacy and security concerns for some users.
  • Limited customization options
    Compared to some other authentication apps, Authy offers fewer options for custom-tailoring the appearance and organization of the 2FA tokens.
  • Potential for lockout
    If users forget their Authy backup password or lose access to all trusted devices, they may have difficulty recovering their 2FA tokens, leading to a potential lockout of their accounts.
  • Initial setup complexity
    The initial setup process, which includes account verification and device synchronization, may be more complex and time-consuming compared to other simpler 2FA apps.
  • Limited platform support
    While Authy supports major platforms such as iOS, Android, and Windows, it does not have the same broad platform compatibility as some other 2FA solutions, potentially limiting its usability for some users.

Analysis of ZIP Code API

Overall verdict

  • ZIP Code API from zip-codes.com is a solid, reliable choice for developers and businesses needing accurate US and Canadian postal code data, offering a straightforward RESTful interface with regularly updated databases.

Why this product is good

  • Provides accurate and frequently updated ZIP code, city, state, and geographic data
  • Offers a simple RESTful API that is easy to integrate into web and mobile applications
  • Supports features like ZIP code lookup, radius search, and distance calculations
  • Includes both US ZIP codes and Canadian postal codes for broader coverage
  • Backed by an established data provider with a long track record in postal data

Recommended for

  • Developers building address validation or autofill features
  • E-commerce platforms needing shipping and location-based calculations
  • Businesses performing geographic or radius-based store locators
  • Applications requiring reliable US and Canadian postal data
  • Marketing and logistics teams that need regional or demographic targeting

Analysis of Authy

Overall verdict

  • Authy is generally considered a good and reliable two-factor authentication (2FA) app.

Why this product is good

  • Authy is praised for its ease of use, cross-platform support, and strong security features. It provides cloud backup of authentication tokens, which is convenient for users who switch devices. The app supports a wide range of online services, making it a versatile option for enhancing account security.

Recommended for

    Authy is recommended for individuals who seek a user-friendly and secure way to manage their two-factor authentication across multiple devices and platforms. It is suitable for both beginners and experienced users who prioritize security and convenience in their digital security practices.

ZIP Code API videos

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Authy videos

How to Use Authy To Keep Your Data Safe

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  • Review - GOOGLE AUTHENTICATOR vs. AUTHY - (AUTHY WON)
  • Review - Productivity Tuesday Ep#4 -- Authy Two Factor Authentication

Category Popularity

0-100% (relative to ZIP Code API and Authy)
Zip Lookup
100 100%
0% 0
Identity And Access Management
APIs
100 100%
0% 0
Two Factor Authentication

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Reviews

These are some of the external sources and on-site user reviews we've used to compare ZIP Code API and Authy

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Authy Reviews

7 Best Google Authenticator Alternatives For Android And iOS
And another big difference that it provides over the Google Authenticator is the Authy passcode. Using this code, no one will be able to browse through all your codes.
The Best Authenticator Apps for 2023
One of Twilio Authyโ€™s big advantages is encrypted cloud backup. However, itโ€™s somewhat concerning that you can add the account to a new phone using โ€œa PIN code sent via a call or an SMS,โ€ according to Authyโ€™s support pages. Thereโ€™s also an option to enter a private password or passphrase that Authy uses to encrypt login info for your accounts to the cloud. The password is...
Source: www.pcmag.com
Top 6 Google Authenticator Alternatives in 2023
Although most alternatives to Google Authenticator are completely free but potentially relatively limited in terms of options, Duo can offer you a lot if youโ€™re willing to pay for it. The free option, which Cisco advises is aimed towards individuals and very small teams, is most comparable to what Google offers and will be enough for many, though it faces stiff competition...
Is Authy better than Google Authenticator?
.large-mobile-banner-1-multi-842{border:none!important;display:block!important;float:none;line-height:0;margin-bottom:3px!important;margin-left:0!important;margin-right:0!important;margin-top:3px!important;min-height:250px;min-width:300px;padding:0;text-align:center!important}But to avoid this problem entirely, make sure to add Authy to any devices you want and then Disable...
The Best 2FA Apps 2021: Locking Down Your Online Accounts
As far as website support goes, Authy 2FA tokens work with any service that accepts TOTP-based authenticator apps. Authy even maintains a database of services it supports, complete with step-by-step instructions for how to enable 2FA on those services. In addition to password managers like Keeper, cloud storage like Box and encrypted email services like ProtonMail, Authy...

Social recommendations and mentions

Based on our record, Authy seems to be more popular. It has been mentiond 140 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

ZIP Code API mentions (0)

We have not tracked any mentions of ZIP Code API yet. Tracking of ZIP Code API recommendations started around May 2026.

Authy mentions (140)

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What are some alternatives?

When comparing ZIP Code API and Authy, you can also consider the following products

Smarty - Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.

Google Authenticator - Google Authenticator is a multifactor app for mobile devices.

Zipcodestack - Free Zip Code API - Free Postal Code Validation | Zipcodestack

Duo Security - Duo Security provides cloud-based two-factor authentication. Duoโ€™s technology can be deployed to protect users, data, and applications from breaches, credential theft, and account takeover.

PostalDataPI - The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.

Azure Multi-Factor Authentication - Azure Multi-Factor Authentication helps safeguard access to data and applications while meeting user demand for a simple sign-in process.