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ZIP Code API VS G2 Crowd

Compare ZIP Code API VS G2 Crowd and see what are their differences

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Contents:
  1. ยป Base Details
  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

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

G2 Crowd logo G2 Crowd

G2 Crowd is a peer-to-peer, business solutions review platform
  • 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

  • G2 Crowd Landing page
    Landing page //
    2019-03-27

ZIP Code API

Website
zip-codes.com
Release Date
2026 April
Startup details
Country
United States
State
NY
City
Hopewell Junction
Edit details

G2 Crowd

Website
g2.com
Release Date
2012 January
Startup details
Country
United States
State
Illinois
City
Chicago
Founder(s)
Godard Abel
Employees
500 - 999
Edit details

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.

G2 Crowd features and specs

  • Comprehensive Reviews
    G2 Crowd offers a large number of user-generated reviews, providing detailed insights from actual users about a wide range of software products.
  • Comparison Tools
    The platform provides useful comparison tools that allow users to compare different software solutions based on various criteria.
  • Real User Validation
    Reviews on G2 are verified, which ensures that they are written by real users, lending credibility to the feedback provided.
  • Wide Range of Categories
    G2 Crowd covers an extensive array of software categories, making it a valuable resource for businesses across different industries.
  • Visual Data
    The site offers visual data representations, such as grids and graphs, which help users easily understand the performance and satisfaction ratings of the software.

Possible disadvantages of G2 Crowd

  • Information Overload
    The sheer volume of reviews and data available can be overwhelming for some users, making it challenging to sift through all the information.
  • Paid Listings
    G2 offers paid enhanced listings, which can create a perception of bias toward products that have paid for higher visibility.
  • Inconsistent Review Depth
    The depth and quality of reviews can vary significantly, with some providing very detailed information and others being too brief to be helpful.
  • Reviewer Qualification
    While reviews are verified, the expertise level of reviewers can vary, which may affect the reliability of some reviews.
  • Navigation Complexity
    Users may find the website complex to navigate due to its extensive features, filters, and options.

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 G2 Crowd

Overall verdict

  • G2 is considered a good resource for businesses looking to make informed decisions about software purchases. Its large user base and structured review process contribute to the credibility and usefulness of the information provided.

Why this product is good

  • G2 Crowd, now known simply as G2, is a widely recognized platform for user reviews and peer insights on business software and services. It is appreciated for its authentic and verified user reviews, comprehensive insights, and the ability to compare products across various criteria. The platform allows businesses to make informed decisions based on real user experiences, offering transparency and reliability in their software evaluations.

Recommended for

  • Businesses seeking software solutions and wanting to compare products before purchasing.
  • Software developers and companies looking to benchmark their products against competitors.
  • Professionals who value peer insights and authentic user reviews in their decision-making process.

ZIP Code API videos

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G2 Crowd videos

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How to earn 50$ dollar by just writing review on G2 Crowd with proof.(Hindi)

More videos:

  • Review - Product Comparisons - National Product Review
  • Review - Product Comparisons & Client Review

Category Popularity

0-100% (relative to ZIP Code API and G2 Crowd)

ZIP Code API

G2 Crowd

Zip Lookup
100 100%
Zip Lookup
0% 0
Software Recommendations
0 0%
Software Recommendations
100% 100
APIs
100 100%
APIs
0% 0
Software Marketplace
0 0%
Software Marketplace
100% 100

User comments

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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 G2 Crowd

ZIP Code API Reviews

We have no reviews of ZIP Code API yet.
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G2 Crowd Reviews

Top 10 G2 Alternatives: Exploring the Best Options
In todayโ€™s digital world, finding the right software solution for your business is very important. G2 is a popular platform for user reviews and comparisons of business solutions, but this is not the only solution for you. However, itโ€™s important to explore all available options before making a decision.
Source: medium.com
Exploring SaaS Directories: The Path to Optimal Software Selection
G2.com is renowned as a leading platform for real-time user reviews on software and services, making it an invaluable resource for businesses and individuals seeking the best technology solutions. This platform aggregates user feedback, ratings, and data-driven comparisons to empower users with the insights needed to make informed decisions. Established to bridge the gap...
Source: cloudtweaks.com
Top 10 software review sites for 2024
The platform boasts a user-friendly interface that, coupled with the engaging user community, creates an environment conducive to insightful reviews. G2โ€™s approach to software evaluation allows users to delve into in-depth reviews, contributing to a robust knowledge base. However, it is essential to acknowledge that G2โ€™s software variety, while comprehensive, does not match...
Source: www.wisestamp.com
Our Top 15 Software Review Websites
You canโ€™t run ad campaigns on G2. Instead, its expensive subscription model lets your profile button link to a form hosted on G2 instead of your site. The price is steep for what it offers.
Source: www.reviewflowz.com
9 Best Software Review Websites to List Your Solution On in 2024
G2 Crowd is one of the biggest and most established review sites. Each month more than a million users use the platform to search and research different options for applications or programs.
Source: peertopeermarketing.co

Social recommendations and mentions

Based on our record, G2 Crowd seems to be more popular. It has been mentiond 21 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.

G2 Crowd mentions (21)

  • How to Bypass Anti-Bot Walls for Production-Ready Apps
    A 403 Forbidden error is universally recognized by developers as a hard security rejection. It removes all ambiguity. The errors will be the same for g2.com or any other protected sites, and your automated agents cannot run that script, so your code is completely stuck at a dead end. - Source: dev.to / 28 days ago
  • Which of the 4 Gusto 401k partner would you prefer from your employer?
    Despite the steep fees, human interest seems well represented on g2.com. In which areas does human interest excel in that people are willing to pay higher fees to use them, and be content? Source: about 3 years ago
  • List of available reporting solution that can be embadable into your SaaS
    Have you tried using g2.com to find anything? Source: about 3 years ago
  • Employee Advocacy Software Market Scope, Opportunities with Strategic Growth and Top Players Till 2035
    This report also provides the existing competitive scenario of some of the key players of the global employee advocacy software market which includes company profiling of Ambassify NV, COYO Pty Ltd., G2.com, Inc., Hootsuite Inc., MarketBeam Inc., Firstup, Inc., PostBeyond Inc., Sociabble, Inc., Influitive Corporation, and GaggleAMP Inc. The profiling enfolds key information of the companies which encompasses... Source: over 3 years ago
  • b2b prospecting tool review
    I want to share a side project I'm working on. I work as a lead gen and in the past needed to find the right prospecting tool. It was always a struggle to find unbiased reviews from these software. Indeed, on g2.com, or others, all the software seems more or less perfect. Source: over 3 years ago
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What are some alternatives?

When comparing ZIP Code API and G2 Crowd, you can also consider the following products

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

Capterra - Capterra helps millions of people find the best business software. With software reviews, ratings, infographics, and the most comprehensive list of the top business software products available, you're sure to find what you need at Capterra.

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

Product Hunt - A website that lets users share and discover new products

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

AlternativeTo - AlternativeTo lets you find apps and software for Windows, Mac, Linux, iPhone, iPad, Android, Android Tablets, Web Apps, Online, Windows Tablets and more by recommending alternatives to apps you already know.

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