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ZIP Code API VS LeadDyno

Compare ZIP Code API VS LeadDyno 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

LeadDyno logo LeadDyno

Lead Dyno - Affiliate Tracking Software
  • 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 — no separate APIs by country or data type.

What it does

  • Address validation and standardization — production-grade parser with ZIP+4 append, refreshed monthly
  • Radius search — 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 — accepts US ZIP, ZIP+4, Canadian FSA, full Canadian postal codes, or latitude/longitude inputs
  • Autocomplete/typeahead — cities, counties, metros, states, FSAs, ZIPs
  • Point-to-point distance — between any two postal points
  • Census ACS demographics — 2011–2024, 542 fields per ZIP across income, education, housing, social, and economic profiles
  • Boundary lookups — Census tracts, congressional districts, state legislative areas, school districts — with computed intersection percentages per ZIP

What makes it different

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

Pricing

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

Resources

  • LeadDyno Landing page
    Landing page //
    2023-07-11

Affiliate tracking made easy. Recruit and manage affiliates, coordinate marketing promotions and pay their commissions. LeadDyno works on any website.

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.

LeadDyno features and specs

  • User-Friendly Interface
    LeadDyno offers an intuitive and easy-to-navigate dashboard, making it suitable for users of all technical levels.
  • Comprehensive Analytics
    The platform provides detailed analytics and reporting features, allowing businesses to track the performance of their affiliate programs precisely.
  • Easy Integration
    LeadDyno seamlessly integrates with multiple e-commerce platforms and marketing tools, such as Shopify, Stripe, and MailChimp.
  • Automated Affiliate Management
    The platform offers automation features that simplify the management of affiliates, including automatic commission calculations and payments.
  • Robust Support
    LeadDyno offers strong customer support through various channels, including live chat, email, and an extensive knowledge base.

Possible disadvantages of LeadDyno

  • Price Point
    LeadDyno's pricing can be on the higher side for smaller businesses or startups, which may find the cost a bit prohibitive.
  • Customization Limits
    While LeadDyno offers a variety of features, some users have reported limitations in customization options for their affiliate dashboards and tracking settings.
  • Occasional Performance Issues
    A few users have experienced intermittent performance issues, such as slow loading times or glitches within the platform.
  • Learning Curve for Advanced Features
    Although the basic interface is user-friendly, mastering all the advanced features may require some time and a learning curve.
  • Limited Third-Party Integrations
    Despite offering a good number of integrations, there are still some third-party tools and platforms that LeadDyno does not support, potentially limiting its use for some businesses.

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

ZIP Code API videos

No ZIP Code API videos yet. You could help us improve this page by suggesting one.

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LeadDyno videos

+ Add

LeadDyno Review + Demo - A Peek Inside

More videos:

  • Tutorial - Leaddyno Review & How To Add An Affiliate Program To Your Website Easily Using Leaddyno
  • Review - LeadDyno Review | Pros and Cons

Category Popularity

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

ZIP Code API

LeadDyno

Zip Lookup
100 100%
Zip Lookup
0% 0
Affiliate Marketing
0 0%
Affiliate Marketing
100% 100
APIs
100 100%
APIs
0% 0
Advertising
0 0%
Advertising
100% 100

User comments

Share your experience with using ZIP Code API and LeadDyno. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, LeadDyno seems to be more popular. It has been mentiond 1 time 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.

LeadDyno mentions (1)

  • Ask HN: What are your “scratch own itch” projects?
    You asked for it: https://htmx.org https://hyperscript.org I hated angular when it first came out and couldn't believe what insanity people were willing to come up with, so long as it came from google. (e.g. GWT) I created https://intercoolerjs.org out of frustration with that, and the lack of progress in HTML/hypermedia in general, so I could build a web application I was working on (https://leaddyno.com, since... - Source: Hacker News / almost 4 years ago

What are some alternatives?

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

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

Refersion - Seamless influencer tracking system for online retailers.

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

Tapfiliate - Affiliate, referral and influencer marketing tracking software for eCommerce & SaaS.

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

Post Affiliate Pro - Post Affiliate Pro powers 27,000+ businesses. Get advanced tracking, automation, and seamless integrations. Start your 30-day free trial today—no credit card needed!

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