
Supabase
Firebase
PocketBase.io
Clerk
Xano
Convex.dev
Next.js
Appwrite provides web and mobile developers with a set of easy-to-use and integrate REST APIs to manage their core backend needs.
Smarty
Zipcodestack
PostalDataPI
Geoco.io
Melissa Data Quality
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, AppWrite seems to be more popular. It has been mentioned 178 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 | appwrite.io | zip-codes.com |
| Pricing | — | |
| Company | Startup from Israel | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of AppWrite yet.
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.

Overall verdict
Why this product is good
Recommended for
AppWrite is recommended for developers building applications who require a scalable backend solution without the overhead of managing infrastructure. It is particularly suited for developers who prefer open-source platforms and those who want to avoid vendor lock-in. AppWrite's features make it a good fit for startups, hobby projects, and even educational purposes where full control over the backend is desirable.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Appwrite quickstart tutorial
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using AppWrite 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.

Appwrite’s self-hosted nature gives you complete control over your data and infrastructure, great for those who are security-conscious. It also offers a comprehensive set of features, including user authentication,...
Appwrite is an open-source backend-as-a-service platform that provides a comprehensive set of tools and APIs to help developers build modern applications. It focuses on simplicity and developer experience.
Appwrite is a self-hosted BaaS platform giving you all the tools you need to build all sorts of application.
We have no reviews of ZIP Code API yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.

Initially, I was using the Supabase free tier, but I was hitting the limits, and my app was becoming stale. Then I switched to Appwrite. Both are totally different; one is SQL, while the latter one is NoSQL. Although use node-appwrite... - Source: dev.to / 10 months ago
Appwrite is an open-source platform that simplifies backend setup by providing authentication, databases, storage, functions, and hosting all in one place. - Source: dev.to / about 1 year ago
I love Appwrite. My first hackathon was actually from Appwrite (using Appwrite) 2 years ago, and I've been using it ever since. - Source: dev.to / over 1 year ago
Tracking ZIP Code API since May 2026.
When comparing AppWrite and ZIP Code API, you can also consider the following products.


Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
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Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Open Source backend with realtime database, authentication, file storage and admin dashboard, all compiled in 1 portable executable.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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