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ZIP Code API VS FitSW

Compare ZIP Code API VS FitSW 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

FitSW logo FitSW

App for personal trainers. FitSW personal training software helps fitness coaches easily build workout & meal plans, track client progress, & more on any device.
  • 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

  • FitSW Landing page
    Landing page //
    2019-10-10

FitSW helps thousands of trainers track their clients' fitness from any type of device. Quickly Build Workouts, Plan Diets, Track Progress, Schedule Appointments, Accept Payments, and more. Whether you are an online or in-person trainer, FitSW enables you to provide a complete health & fitness tracking solution to help your clients excel with the following:

Workout Management Create, track, and record multiple fitness clients' workouts online in one central location. Utilize our extensive exercise database complete with exercise demos. Choose from nearly 1000 different exercises or add your own! Build detailed gym workout plans from the palm of your hand.

Progress Tracking Track and chart client fitness progress on anything, from body-fat to waist-line to bench-press max. Charts are fully customizable. All of your entered data gets automatically transformed into beautiful looking graphs. Print or email these progress tracking graphs with the click of a button. Keep your fitness clients motivated by showing them the progress that they have made.

Comparison Pictures Take progress pictures in the app and store the photos. The app can even create a side by side image of photos you would like to compare.

Nutrition & Diet Planning Easily create meal plans, record food intakes, and keep tabs on fitness clients with editable diet logs. Our food database has nutrition info on thousands of foods. Add your own custom foods and nutrition information in seconds.

ZIP Code API

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

FitSW

Website
fitsw.com
Pricing URL
Official FitSW Pricing
$ Details
freemium $9.99 / Monthly
Platforms
Browser Android iOS
Release Date
2017 March
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.

FitSW features and specs

  • Comprehensive Client Management
    FitSW provides a robust client management system that allows personal trainers to track client progress, manage workout routines, and monitor nutrition plans in one central location.
  • Customizable Workout Plans
    Trainers can create, save, and customize workout plans for their clients. This flexibility ensures that each workout can be tailored to the client's goals.
  • Progress Tracking
    The platform supports detailed progress tracking, enabling trainers and clients to monitor improvements over time in various metrics, such as weight, reps, and body measurements.
  • Mobile Accessibility
    FitSW offers mobile apps for both iOS and Android devices, providing convenience for trainers and clients who are on the go.
  • Integration with Other Tools
    It integrates with popular fitness tools and devices, such as MyFitnessPal and Fitbit, which can enhance the tracking and planning capabilities.

Possible disadvantages of FitSW

  • Learning Curve
    New users might find the range of features overwhelming at first, requiring a significant amount of time to become familiar with all the functionalities.
  • Price Point
    Some users might find the pricing to be on the higher side, especially new trainers or small businesses working with a tight budget.
  • Limited Customization Options
    While workout plans can be customized, some users have reported that the layout and user interface offer limited customization, which could hinder personalization.
  • Occasional Performance Issues
    Some users have experienced occasional performance issues, such as slow load times or bugs, which can disrupt the user experience.
  • Client-Specific Features
    Though feature-rich for trainers, there are fewer options focused on the client side, potentially limiting client engagement beyond what the trainer provides.

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 FitSW

Overall verdict

  • Overall, FitSW is a good choice for fitness professionals who are looking for a comprehensive management tool to streamline their operations and improve client interactions. It is particularly appreciated for its user-friendly interface, robust feature set, and flexibility to cater to various types of fitness businesses.

Why this product is good

  • FitSW is a fitness management software designed to help personal trainers and fitness instructors manage their clients more efficiently. It offers features like workout planning, progress tracking, nutritional guidance, and client communication. Many users find it helpful for organizing their business, maintaining engagement with clients, and improving overall productivity. The platform is accessible both on desktop and mobile devices, making it convenient for on-the-go management.

Recommended for

    FitSW is recommended for personal trainers, fitness coaches, gym owners, and fitness instructors who need a reliable system to manage their clients, schedule, and business operations. It is especially beneficial for those who want a technology-driven solution to enhance client engagement and maximize efficiency.

ZIP Code API videos

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FitSW videos

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FitSW Client Management Demo

More videos:

  • Demo - FitSW Nutrition & Diet Planning Demo

Category Popularity

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

ZIP Code API

FitSW

Zip Lookup
100 100%
Zip Lookup
0% 0
Health And Fitness
0 0%
Health And Fitness
100% 100
APIs
100 100%
APIs
0% 0
Project Management
0 0%
Project Management
100% 100

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What are some alternatives?

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

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

My PT Hub - The World's #1 Software For Personal Trainers.

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

Everfit - A platform for personal trainers to train clients online

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

TrueCoach - TrueCoach is a reputable personal trainer software that makes your life easy via promoting your business to an extreme level with serving less time.

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