Smarty alternatives: Comparing 8 digital address verification solutions

A prospective customer is ready to open an account or complete a high-value transaction. But then something as simple as a mistyped apartment number or missing postcode can bring the entire process to a halt.

Suddenly, their application fails verification checks or their checkout gets stuck.

Sometimes, that means losing a customer altogether. Other times, it leads to manual reviews, failed deliveries, compliance headaches and unnecessary operational costs.

If you're evaluating address verification solutions, you may already be dealing with the downstream impact of inaccurate address data. Or you might be just getting started and evaluating your options, including Smarty and its alternatives.

We’ve written this article to help you compare top solutions and find the best option for your business. We’ll cover:

• GBG
• Jumio
• Melissa
• PostGrid
• Radar
• Fetchify
• Google Maps Address Validation API

GBG is an identity technology company with 30+ years of experience in the global identity verification industry. Book a demo to discover how our US address verification solutions and international location intelligence can help your business.

GBG

 

If all you need is address validation, there are plenty of providers to choose from. The real question is how address verification fits into your broader onboarding or retail strategy. For some organizations, a standalone API is enough. Others need address enrichment, fraud signals or seamless integration with identity verification workflows.

This can quickly narrow your shortlist, especially if you operate across multiple markets: at such a scale, even small differences in address intelligence can impact onboarding success rates.

We capture, validate, standardize and enrich address data at a global scale. Every year, we perform more than 64 billion address verifications across 250+ countries and territories, leveraging proprietary global reference data curated from 36 trusted sources. Our platform also supports 6,500+ languages and 139 writing systems.

For businesses looking to go beyond address verification, our GBG Go platform also enables you to incorporate location intelligence into broader onboarding workflows alongside identity verification, fraud detection and compliance capabilities.

Since we’re writing this article, we’ll cover our capabilities in greater detail first and then highlight other Smarty alternatives worth considering.

Here are three reasons companies like Nike, Santander and IBM choose to work with us:

Speed up onboarding and checkout with real-time address capture

You’ve probably seen this before: a customer starts an application or checkout flow on their phone. They pause to look up their postcode, correct a typo or re-enter their address after receiving an error message. Each additional step adds friction and increases the likelihood they'll abandon the process.

Even when customers complete the form, inaccurate or incomplete address data can create problems later. A misspelled street name or missing apartment number may cause downstream Know Your Customer (KYC) checks to fail because the address can’t be matched against trusted reference data.

 

 

That’s why one of the biggest mistakes organizations make when evaluating address verification providers is focusing exclusively on validation after an address has been entered. In many cases, the larger opportunity is to prevent bad data from entering your systems in the first place.

That's where our real-time address capture and autocomplete technology can make a significant difference. As users begin typing, verified address suggestions appear in about 150 milliseconds. Users can select a complete address in as few as three keystrokes instead of manually entering multiple fields.

All in all, our type-ahead search can:

Reduce typing effort by up to 78%
Decrease address entry errors by up to 20%
Support localized address formats across 130 global markets

This can help you create faster onboarding and checkout experiences while improving address data quality from the start.

Improve global address accuracy with AI-powered parsing and validation

Customers rarely enter addresses exactly as expected. They use abbreviations, misspell street names, omit apartment numbers and follow local formatting conventions that traditional validation systems often struggle to interpret.

For example, one customer might enter "123 Main St Apt 4B" while another enters "123 Main Street #4B." Conventional systems may treat these as different addresses or require manual correction, which creates unnecessary friction in data matching and might reduce success rates.

 

 

That’s why we use AI-powered address parsing to intelligently interpret, standardize and validate address data before matching it against trusted global reference datasets. Our technology can identify and classify address components, even when information is incomplete, inconsistent, or entered in a non-standard format.

Our AI models can process misspellings, abbreviations, non-Latin scripts, and regional formatting variations to improve address match rates by an average of 7% globally and up to 19% in developing markets.

Depending on your use case, you may also benefit from capabilities such as:

• Geocoding and reverse geocoding
• Multilingual address support
• Transliteration across eight writing systems
• Premise-level verification in more than 141 countries and sub-premise verification in 19 countries
• Rooftop-level accuracy in more than 120 countries

Unify location intelligence, identity verification and fraud prevention in one end-to-end platform

If your onboarding stack has grown over time, you may already be managing separate providers for address verification, identity checks, fraud prevention and compliance screening.

 

 

We offer a more efficient solution to this fragmented approach: our unified, end-to-end identity intelligence platform, GBG Go. Through a single platform and API, you can verify addresses, validate identities with data checks, document authentication, and biometrics, detect fraud and support compliance requirements.

You can also leverage GBG Trust (our cross-industry intelligence network built from millions of identity insights across more than 28 sectors) to strengthen risk decisions throughout the customer journey. GBG Trust analyzes patterns and relationships across identity attributes, devices, and behavioral signals to help you assess whether a customer appears genuine.

By combining address intelligence with additional signals, you can identify suspicious activity earlier. These signals include:

• Email and mobile intelligence to identify newly created or high-risk contact details, including phone numbers linked to a mobile virtual network operator (MVNO), prepaid services or other elevated-risk profiles
• Device and IP intelligence to detect VPNs, proxies and geolocation inconsistencies
• Velocity alerts that flag high-frequency application activity associated with bots and automated attacks
• Synthetic identity fraud prevention that helps uncover identities built from fabricated or manipulated information

How we helped a fintech provider more than double auto-approvals and boost customer match rates by 25%

myPOS is a fintech company that delivers in-store, online and mobile payment solutions to more than 300,000 small and medium-sized businesses.

As the company grew, manual application reviews were creating onboarding bottlenecks. Customers often faced longer wait times to complete the verification process, which impacted conversion rates and slowed growth. At the same time, limited access to reliable global data sources and rigid matching rules made it harder to accurately verify customers across different markets, affecting both scalability and the customer experience.

To address these challenges, we worked with myPOS to improve the quality of its identity data, identify trusted and verified address data sources through our location intelligence solution and optimize its matching criteria to deliver more accurate verification outcomes.

As a result, myPOS increased customer match rates by 25% across its four largest markets and more than doubled its automated approval rate while maintaining compliance standards.

Read the full case study: Doubling customer auto-approvals drives myPOS’s growth across 35+ countries

Jumio(2)

Organizations operating in heavily regulated industries often need more than simple address validation – they need evidence that a customer actually lives where they claim to live. Jumio focuses on proof-of-address verification by extracting and validating address information from identity and supporting documents during onboarding.

Highlights include:

• Robust fraud detection signals: Verify that an address belongs to the individual and authenticate proof-of-address documents to support verification.
• AI-powered data extraction: Use OCR and machine learning technology to capture address information from government-issued IDs and other identity documents.
• Address standardization and validation: Compare extracted address details against authoritative postal databases, such as USPS and Royal Mail, to ensure accuracy and compliance with local formatting standards in 200+ countries and territories.
• Regulatory compliance support: Meet regional requirements for address verification by validating customer address information against trusted independent public records and reference sources.