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Omada Identity
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SailPoint Identity Platform
Passly from ID Agent
RSA Access Manager
Elegant user management, tailor-made for B2B SaaS
Smarty
Zipcodestack
PostalDataPI
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Loqate
usZIPCodes.org
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

Which is more popular?
Based on our record, Frontegg seems to be more popular. It has been mentioned 7 times since March 2021.
Website, pricing, platforms and company facts side by side.
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ZIP
ZIP Code API
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| Website | frontegg.com | zip-codes.com |
| Pricing | — | |
| Platforms | — | |
| Company | 2019 | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

Frontegg provides all the user management capabilities your B2B SaaS needs, allowing a full self-served experience within your product, right out of the box. From signup to checkout, Frontegg supports app builders by covering all the way from fundamental authentication flows to the most complex...
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...
What each product offers, as listed by its team.

An editorial look at what each product does well and who it suits.

No analysis of Frontegg yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Frontegg: The Modern Days of User Management
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Frontegg and ZIP Code API. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.

Besides Frontegg covers fundamental authentication workflows along with advanced functionalities such as enterprise SSO, social login integrations, MFA, password less authentication, advanced security policies, multi...
Forntegg also has some industry-leading attributes like forced MFA, user lockout, password change history, IP blocking, etc. In addition, you can apply Frontegg for machine-to-machine authorization. And finally, there...
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Recommendations tracked on public social media and blogs since March 2021.

Vite React w/ Typescript and Frontegg is a minimal sample app to get started with Frontegg Authentication in a React app using Frontegg's client-side React SDK. - Source: dev.to / over 1 year ago
Frontegg is built with the goal of modernizing user management for B2B Saas organizations. As shown in the screenshot above, via the admin portal in the dashboard, you can easily set up SCIM provisioning, connect your identity provider... - Source: dev.to / about 2 years ago
Frontegg- Frontegg focuses on certain components like authentication, SSO, authentication, etc. A quick Moz domain analysis check showed me that they rank #1 for keywords like user management, microservices authentication, and auth0.... Source: about 3 years ago
Tracking ZIP Code API since May 2026.
When comparing Frontegg and ZIP Code API, you can also consider the following products.

Auth0 is a program for people to get authentication and authorization services for their own business use.
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Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
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Enterprise-grade identity management for all your apps, users & devices
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Omada Identity is an advanced-level identity management software that is used to protect your organization from risks and helps you to take the action against form those risks and threats.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
Compare PostalDataPI to Frontegg or ZIP Code API: