
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.

Postio.co.uk
Ideal postcodes
Fetchify
Smarty
Data8 UK
ZIP Code API
Data8 UK PredictiveAddress
The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.

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.
|
|
|
|
|---|---|---|
| Website | appwrite.io | postaldatapi.com |
| Pricing | ||
| Company | Startup from Israel | Startup from the United States · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of AppWrite yet.
PostalDataPI is a global postal code validation and enrichment API covering 240+ countries and territories. One API, one key, one flat rate — $0.000028 per query with no tiers or subscriptions. What you get back: Up to 18 metadata fields per postal code — city, state/region, coordinates,...
What each product offers, as listed by its team.


Possible disadvantages
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
PostalDataPI Now Returns 18 Fields Per Postal Code — for 240+ Countries
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using AppWrite and PostalDataPI. 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 PostalDataPI 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 PostalDataPI since Apr 2026.
When comparing AppWrite and PostalDataPI, you can also consider the following products.


Fast UK address, email & phone validation APIs for developers. Official Royal Mail PAF data. Pay as you go, 100 free lookups.
Compare Postio.co.uk to AppWrite or PostalDataPI:

Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
Compare Firebase to AppWrite or PostalDataPI:

We help businesses improve UX and data quality with a cutting edge address validation service.
Compare Ideal postcodes to AppWrite or PostalDataPI:

Open Source backend with realtime database, authentication, file storage and admin dashboard, all compiled in 1 portable executable.
Compare PocketBase.io to AppWrite or PostalDataPI:

Fetchify delivers fast, accurate address, email, phone and bank validation tools that help businesses capture clean, verified customer data, reduce failed deliveries and improve checkout experiences worldwide.
Compare Fetchify to AppWrite or PostalDataPI: