
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.

Conduct Exam
Wooclap
ClassMarker
Questionmark
Edmentum Assessments
NWEA Assessments
Taskstream
Test Management Software being used in many countries in all languages. Useful for schools, teachers, professors, parents, companies, recruiting agencies. Student Answer Sheet facility
Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | postaldatapi.com | exam-software.com |
| Pricing | ||
| Company | Startup from the United States · 1 - 9 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


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,...
No description of Exam Software yet.
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Educational institutions, corporate training departments, certification bodies, and any organization needing to conduct secure, scalable online assessments.
Walkthroughs and reviews on video.
PostalDataPI Now Returns 18 Fields Per Postal Code — for 240+ Countries
More videos
DSSSB Exam Software Demo and Review | PGT TGT PRT Mail DSSSB of your concerns fast
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using PostalDataPI and Exam Software. For example, how are they different and which one is better?
When comparing PostalDataPI and Exam Software, 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.
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Conduct Exam is a robust online exam software which offers impeccable assessment solutions
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We help businesses improve UX and data quality with a cutting edge address validation service.
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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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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.
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The ClassMarker online testing website, is a professional, easy to use, online quiz maker that marks your tests and quizzes for you. Create online quizzes free quiz maker. Web-based online testingWeb-based online testing service | Free quiz maker.
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