
Conduct Exam
Exam Software
Wooclap
ClassMarker
Questionmark
Edmentum Assessments
Taskstream
Think Exam is the most trusted and secure online examination platform. You can assign and create online exams, tests, quizzes with advanced features.
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, Think Exam seems to be more popular. It has been mentioned 3 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 | thinkexam.com | zip-codes.com |
| Pricing | — | |
| Company | — | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Think Exam 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...
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Share your experience with using Think Exam 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.

Think Exam is a platform that focuses on assessments rather than being a full-on learning management system. It allows you to create many types of exams and tests, as well as sell them to monetize your ideas. If you...
I was worried about conducting online test on my 1000+ students of the institute. Think Exam has got good scalability and I didn’t find any lag when conducting exam on so many students. It was easy to sort the...
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Recommendations tracked on public social media and blogs since March 2021.

Online exam platforms make assessments highly accessible, suitable, economical, and user-friendly. The test software used these days is much more advanced and provides for setting up unique marking schemes. It can allow different marks... Source: almost 4 years ago
Online assessment software is creating demand in the market. It is helping talent acquisition professionals to hire the right candidate based on the job role and making hiring process transparent. Read this article to know How Think... Source: over 4 years ago
To understand the concept of online exam software, it is necessary to know about the emergence of the online exam. After digitization, the conventional form of the exam was fading away. The advent of the online exam came when there was a... Source: almost 5 years ago
Tracking ZIP Code API since May 2026.
When comparing Think Exam and ZIP Code API, you can also consider the following products.

Conduct Exam is a robust online exam software which offers impeccable assessment solutions
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Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
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Test Management Software being used in many countries in all languages. Useful for schools, teachers, professors, parents, companies, recruiting agencies. Student Answer Sheet facility
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Wooclap lets teachers and trainers engage students and employees alike with real-time polls and quizzes, making classes, training sessions, and presentations more interactive.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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