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PostalDataPI VS Affise

Compare PostalDataPI VS Affise and see what are their differences

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Contents:
  1. ยป Base Details
  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

PostalDataPI logo PostalDataPI

The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.

Affise logo Affise

Affiliate marketing and mobile attribution platform built to manage, attribute, and scale performance marketing across web and mobile.
  • PostalDataPI Landing page
    Landing page //
    2026-04-08

PostalDataPI is a global postal code validation and enrichment API covering 240+ countries and territories. One API, one key, one flat rate โ€” $0.000028 per query with no tiers or subscriptions.

What you get back: Up to 18 metadata fields per postal code โ€” city, state/region, coordinates, timezone, three levels of administrative hierarchy, elevation, and more. Sub-5ms cached responses.

Works everywhere: US ZIP codes, UK postcodes, German PLZ, Japanese postal codes, Canadian FSAs, and 230+ more. Format normalization handles case, spacing, and hyphen variations automatically.

Get started in 60 seconds: 1,000 free queries on signup, no credit card required. SDKs for Python and Node.js. MCP server for AI agents (Claude, Cursor, etc.).

Built for developers: REST API, consistent JSON responses across all countries, OpenAPI spec, llms.txt for AI agent discovery.

  • Affise Landing page
    Landing page //
    2023-09-28

Affiliate marketing and mobile attribution platform built to manage, attribute, and scale performance marketing across web and mobile.

Trusted by 1,000+ companies since 2017, Affise offers two core products:

  1. Affise Performance โ€“ Built for affiliate networks to track, optimize, and scale with confidence, offering advanced crossโ€‘device attribution, fully customizable postbacks, realโ€‘time analytics, and builtโ€‘in fraud prevention.

  2. Affise Mobile Attribution (MMP) โ€“ Full-funnel tracking for installs, in-app events, re-engagements, and uninstalls across iOS and Android. Supports SKAN, Facebook attribution, and raw data exports.

Affise also empowers media buying teams with a centralized dashboard for smart cost tracking, bulk editing, and granular performance insights.

By unifying attribution, automation, and analytics, Affise gives marketers full control over their performance ecosystemโ€”driving growth, optimizing spend, and scaling with confidence.

PostalDataPI

Website
postaldatapi.com
Pricing URL
Official PostalDataPI Pricing
$ Details
-
Release Date
2026 March
Startup details
Country
United States
State
ID
City
Eagle
Founder(s)
Thom Ives
Employees
1 - 9
Edit details

Affise

Website
affise.com
Pricing URL
Official Affise Pricing
$ Details
paid
Release Date
2016 January
Startup details
Country
Lithuania
State
Vilniaus Apskritis
City
Vilnius
Founder(s)
Dmitri Zotov
Employees
100 - 249
Edit details

PostalDataPI features and specs

  • Specialized Postal Data
    PostalDataPI focuses specifically on postal and address-related data, providing dedicated endpoints for ZIP code lookups, address validation, and geographic postal information, making it a niche solution for mailing and logistics needs.
  • Simple API Integration
    The API appears to offer straightforward RESTful endpoints that are relatively easy to integrate into existing applications, requiring minimal setup and configuration for developers.
  • Useful for Address Validation
    The service can help businesses validate and standardize mailing addresses, reducing undeliverable mail, saving postage costs, and improving data quality in customer databases.
  • Geographic Data Enrichment
    PostalDataPI can enrich address data with additional geographic information such as coordinates, county, and timezone details associated with postal codes, which is valuable for analytics and location-based services.
  • Lightweight and Focused
    As a specialized micro-API, it avoids the bloat of larger platforms, offering a focused toolset that does one thing well โ€” handling postal and ZIP code data without unnecessary complexity.

Possible disadvantages of PostalDataPI

  • Limited Public Awareness
    PostalDataPI is not widely known or widely reviewed compared to major competitors like SmartyStreets, Google Geocoding API, or Melissa Data, making it harder to assess reliability and long-term viability.
  • Sparse Documentation and Community Support
    As a smaller or lesser-known service, it may lack comprehensive documentation, tutorials, and an active developer community, which can make troubleshooting and advanced usage more challenging.
  • Uncertain Data Coverage
    It is unclear how comprehensive the postal data coverage is โ€” whether it supports international postal codes or is limited to specific countries, which could be a significant limitation for global applications.
  • Unknown Uptime and Reliability Track Record
    Without widespread usage reports or published SLA guarantees, it can be difficult to trust the service for mission-critical applications that require high availability and consistent performance.
  • Limited Feature Set Compared to Competitors
    Larger address validation and postal data providers offer additional features like autocomplete, batch processing, CASS certification, and deliverability scoring that PostalDataPI may not provide.

Affise features and specs

  • Comprehensive Tracking
    Affise offers robust tracking capabilities, enabling users to monitor a wide array of performance metrics, from clicks and conversions to detailed user behavior.
  • Customizable Interface
    The platform provides a highly customizable interface, allowing users to tailor dashboards and reports to suit their specific needs.
  • API Access
    Affise offers extensive API access for advanced integrations, making it easier to connect with other tools and systems used by businesses.
  • Affiliate Management
    The tool includes comprehensive affiliate management features, enabling easy onboarding, management, and payout of affiliates.
  • Real-Time Reporting
    Users can access real-time data and insights, which is essential for making timely and informed decisions in fast-paced marketing environments.
  • Customer Support
    Affise provides 24/7 customer support, ensuring that users can get help whenever they need it.
  • Fraud Detection
    The platform includes fraud detection mechanisms, helping to identify and mitigate fraudulent activities.

Possible disadvantages of Affise

  • Complexity
    Affise can be complex to set up and use, particularly for those who are unfamiliar with performance marketing software.
  • Cost
    The pricing can be relatively high compared to other solutions on the market, which may be a concern for small to mid-sized businesses.
  • Learning Curve
    There is a steep learning curve associated with mastering all the features and functionalities of Affise.
  • Occasional Performance Issues
    Some users have reported occasional performance issues, such as slow loading times or system glitches.
  • Limited Basic Features
    While it is feature-rich, some basic functionalities may be more limited or less intuitive than other platforms, necessitating additional customization.

Analysis of PostalDataPI

Overall verdict

  • I don't have verified, up-to-date information specifically about PostalDataPI (postaldatapi.com), including details on its accuracy, pricing, uptime, or customer reviews. I can't confirm whether it's a good product without more direct data or firsthand testing, so I'd recommend evaluating it yourself using the criteria below before committing.

Why this product is good

  • Unable to verify specific claims about data accuracy, coverage, or update frequency for this service
  • No confirmed information on pricing tiers, rate limits, or API reliability (SLA/uptime)
  • No verified user reviews, testimonials, or third-party comparisons available
  • Company background, support quality, and documentation quality are unconfirmed
  • If considering this service, check for: free trial/sandbox access, transparent pricing, data source citations, response time benchmarks, and independent reviews on sites like G2 or Trustpilot

Recommended for

  • Not able to make a specific recommendation without verified data
  • Best approach: developers needing postal/address validation APIs should compare this against established alternatives (e.g., SmartyStreets, Lob, Google Maps Geocoding API, USPS Web Tools) based on documented accuracy and pricing
  • Suitable evaluation candidates: teams willing to test the API directly with sample data before integrating into production systems

Analysis of Affise

Overall verdict

  • Affise is generally considered a good platform for those seeking in-depth analytics and customizable solutions in the affiliate marketing space. Its strength lies in its adaptability to different business needs and effective campaign management tools. However, the complexity of its features may present a learning curve for new users.

Why this product is good

  • Affise is a performance marketing platform that offers a comprehensive suite of tools for managing affiliate marketing, partnerships, and advertising campaigns. It is known for its robust tracking capabilities, customizable dashboard, and integration options, which can help businesses optimize their marketing efforts. The platform also provides analytics and detailed reporting features to give insights into campaign performance.

Recommended for

    Businesses and marketers who require advanced tracking, reporting, and customization abilities in their affiliate marketing campaigns will benefit most from Affise. The platform is particularly well-suited for medium to large enterprises and agencies looking to effectively manage a high volume of affiliate partnerships and campaigns.

PostalDataPI videos

+ Add

PostalDataPI Now Returns 18 Fields Per Postal Code โ€” for 240+ Countries

More videos:

  • Tutorial - PostalDataPI Tutorial: Your First Postal Code API Call in 5 Minutes

Affise videos

+ Add

Affise, tracking platform for more than 1000 affiliate networks

More videos:

  • Review - Affise - SaaS Marketing Platform, where you can grow your affiliate business

Category Popularity

0-100% (relative to PostalDataPI and Affise)

PostalDataPI

Affise

Address Verification API
100 100%
Address Verification API
0% 0
Advertising
0 0%
Advertising
100% 100
Geolocation API
100 100%
Geolocation API
0% 0
Ads Performance
0 0%
Ads Performance
100% 100

User comments

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What are some alternatives?

When comparing PostalDataPI and Affise, you can also consider the following products

Smarty - Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.

Optmyzr - Optmyzr AdWords Tools. Optimization Solutions, Quality Score Tracker, Landing Page Checker, and more. Free Trial Available.

Melissa Data Quality - Melissa helps companies to harness Big Data, legacy data, and people data (names, addresses, phone numbers, and emails).

LiveIntent - LiveIntent is a web platform that offers effective e-mail advertising services for marketers and publishers.

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