App comparison
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UK Postcode Lookup
The UK's favourite address lookup
Last updated: March 2026
UK Postcode Lookup Alternatives & Competitors (2026)
Top 7 free alternatives
PostGrid Address Verification
Verify and autocomplete addresses in real-time.
Value for money
No pricing info
Starting price
Functionality
Address Validation
5/5
AI/Machine Learning
5/5
API
5/5
Top Features
Data Quality Control
N/A
Data Verification
N/A
For eCommerce
N/A
Twilio User Authentication & Identity
Digital identity verification and intelligence tools
Value for money
Starting price
Functionality
Activity Dashboard
5/5
Address Validation
5/5
Alerts/Notifications
5/5
Top Features
Autocomplete
N/A
Automatic Formatting
N/A
Contact Database
N/A
GeoPostcodes
One vendor. Every country. Trusted location data, worldwide.
Value for money
Starting price
Functionality
Address Validation
5/5
Data Import/Export
5/5
Data Quality Control
5/5
Top Features
API
N/A
Automatic Formatting
N/A
Contact Database
N/A
Smarty
Accurate addresses in, better outcomes out.
Value for money
Starting price
Functionality
Access Controls/Permissions
5/5
Data Cleansing
4.9/5
Address Validation
4.9/5
Top Features
Contact Database
N/A
Contact Management
N/A
Data Quality Control
N/A
Melissa Data Quality Suite
AI-Powered data quality for accurate, actionable insights.
Value for money
No pricing info
Starting price
Functionality
Address Validation
5/5
API
2/5
Bulk Email Verification
N/A
Top Features
Automatic Formatting
N/A
Contact Database
N/A
Contact Management
N/A
SmartAddresser
Mailing software for managing verification and sorting
Value for money
Starting price
Functionality
CASS Certified
N/A
Data Cleansing
N/A
Duplicate Management
N/A
Top Features
API
N/A
Automatic Formatting
N/A
Data Verification
N/A
Byteplant Address Validator
Standardize, Validate and Correct Postal Addresses Worldwide
Value for money
Starting price
Functionality
Address Validation
4.7/5
API
3.9/5
Compliance Management
3/5
Top Features
Contact Database
N/A
Contact Management
N/A
Data Quality Control
N/A
MAILERS+4
Mailroom management and address validation software
Value for money
Starting price
Functionality
CASS Certified
N/A
Data Cleansing
N/A
Duplicate Management
N/A
Top Features
API
N/A
Autocomplete
N/A
Automatic Formatting
N/A
AccuMail frameworks
Address verification software
Value for money
Starting price
Functionality
Abbreviation Detection
N/A
Access Controls/Permissions
N/A
Data Capture and Transfer
N/A
Top Features
API
N/A
Contact Management
N/A
Data Quality Control
N/A
Global Address Verification
Validate & verify international and national addresses
Value for money
Starting price
Functionality
Data Cleansing
N/A
Geolocation
N/A
Multi-Language
N/A
Top Features
Automatic Formatting
N/A
Contact Database
N/A
Contact Management
N/A
Value for money
Starting price
Functionality
Autocomplete
5/5
Automatic Formatting
5/5
Data Quality Control
4.9/5
Top Features
Contact Database
N/A
Contact Management
N/A
Data Verification
N/A
Value for money
No pricing info
Starting price
Functionality
Address Validation
5/5
API
5/5
Automatic Formatting
5/5
Top Features
Contact Database
N/A
Contact Management
N/A
Data Quality Control
N/A
Value for money
Starting price
Functionality
API
5/5
Access Management
4/5
Alerts/Notifications
4/5
Top Features
Autocomplete
N/A
Automatic Formatting
N/A
Contact Database
N/A
Value for money
Starting price
Functionality
Activity Dashboard
N/A
Alerts/Notifications
N/A
Billing & Invoicing
N/A
Top Features
Contact Database
N/A
Contact Management
N/A
Data Quality Control
N/A
Value for money
No pricing info
Starting price
Functionality
3PL Management
N/A
Activity Dashboard
N/A
Activity Tracking
N/A
Top Features
Address Validation
N/A
Autocomplete
N/A
Automatic Formatting
N/A
Value for money
No pricing info
Starting price
Functionality
Address Validation
5/5
Data Cleansing
5/5
API
3/5
Top Features
Contact Database
N/A
Contact Management
N/A
Value for money
No pricing info
Starting price
Functionality
Autocomplete
5/5
Data Security
5/5
Data Cleansing
N/A
Top Features
Automatic Formatting
N/A
Contact Database
N/A
Contact Management
N/A
Value for money
No pricing info
Starting price
Functionality
Barcode/Label Management
N/A
CASS Certified
N/A
Corporate/Business
N/A
Top Features
Autocomplete
N/A
Contact Management
N/A
Data Quality Control
N/A
Value for money
Starting price
Functionality
Address Validation
4/5
Autocomplete
4/5
Automatic Formatting
4/5
Top Features
Contact Database
N/A
Data Quality Control
N/A
Data Verification
N/A
Value for money
No pricing info
Starting price
Functionality
Data Cleansing
N/A
Geographic Maps
N/A
Geolocation
N/A
Top Features
API
N/A
Automatic Formatting
N/A
Contact Database
N/A