Compare the Top Free Identity Resolution Software as of August 2025

What is Free Identity Resolution Software?

Identity resolution software enables organizations to identify and track the identity of customers, users, or potential customers across multiple devices and services. Identity resolution solutions are very helpful for running personalized campaigns across different channels and devices. Compare and read user reviews of the best Free Identity Resolution software currently available using the table below. This list is updated regularly.

  • 1
    Hightouch

    Hightouch

    Hightouch

    Hightouch is the leading Composable CDP and AI Decisioning platform that empowers companies to activate their data warehouse to power personalized marketing and business operations. Trusted by leading organizations like PetSmart, Warner Music Group, Chime, Aritzia, and Whoop, Hightouch enables anyone to deliver personalized customer experiences, optimize performance marketing, and move faster by leveraging data and AI across their organization. Hightouch’s Composable Customer Data Platform collects behavioral events, resolves identities into Customer 360 profiles, builds audiences, syncs data to over 200 destinations like ad platforms and CRMs, and analyzes the results of marketing campaigns— all from the cloud data warehouse.
    Starting Price: $350 per month
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  • 2
    Kochava

    Kochava

    Kochava

    Advertisers worldwide use Kochava to measure what matters most across any channel, any device, and any audience. Founded in 2011 as one of the first mobile measurement partners (MMPs), Kochava now supports campaign measurement on mobile and beyond. Tap into multi-touch attribution, modern MMM, and always-on incremental measurement disciplines to achieve a data-driven, privacy-durable growth strategy. Know which omnichannel tactics drive customer acquisition and retention across connected devices. Key features include: omnichannel app attribution & analytics, cost & ROI measurement, deep linking, marketing data management & ETL support, ad fraud detection & prevention, and strategic services. The Kochava library of software development kits (SDKs) provide out-of-the-box measurement support across mobile, CTV, web, and other connected devices. Built-in integrations enable clients to activate and measure campaigns with thousands of ad networks, CTV platforms, publishers & more.
    Starting Price: FREE
  • 3
    BDEX

    BDEX

    BDEX

    BDEX’S Omni IQ helps you find more customers identical to your ideal clients using a proprietary extended audience AI technology. The BDEX Identity Graph helps companies identify consumers across all channels. We authenticate over 470 million hashed email-MAID-IP matches linked to 113M households cross the US each month from our expansive network of SDKs, app publishers, and primary data sources. Talk to us about identity resolution. Nominated as the top Identity Technology by AdExchanger, BDEX is the only Identity Platform that guarantees all IDs are linked to real people, removing all IDs linked to bots, click farms and other forms of ad fraud as well as all temporary IDs due to Apple's ATT/DoNotTrack.
    Starting Price: $250 per month
  • 4
    Segment

    Segment

    Twilio

    Twilio Segment’s Customer Data Platform (CDP) provides companies with the data foundation that they need to put their customers at the heart of every decision. Per IDC, it’s the #1 CDP in worldwide market share four years in a row (2019-2022). Using Twilio Segment, companies can collect, unify and route their customer data into any system where it’s needed to better understand their customers and create seamless, compelling experiences in real-time. Over 25,000 companies use Twilio Segment to make real-time decisions, accelerate growth and deliver world-class customer experiences.
    Starting Price: $120 per month
  • 5
    Customerlabs CDP

    Customerlabs CDP

    Customerlabs

    CustomerLabs CDP is a cloud-based digital marketing infrastructure that helps Ecommerce, SaaS, B2B and Agency marketers track, identify, segment, sync & analyze their customer data. The platform helps marketers orchestrate personalized campaigns across channels without any developer dependency. Track and collect the customer data you want from your website, app, CRM, email, service & offline channels. With identity resolution, you can map anonymous users and their activities across platforms and get a 360° view of your customers. Create customer segments based on behavior, demographics and user traits to trigger timely messages across channels. You can integrate and seamlessly sync this customer data with your existing marketing tools such as Google Analytics, Google Adwords, Mixpanel, Kissmetrics, Segment, Salesforce, Pipedrive, Zapier, Facebook and 180+ tools in real-time. Back your marketing decisions by capturing accurate customer data with CustomerLabs CDP.
    Starting Price: $29.00/month
  • 6
    Narrative

    Narrative

    Narrative

    Create new streams of revenue using the data you already collect with your own branded data shop. Narrative is focused on the fundamental principles that make buying and selling data easier, safer, and more strategic. Ensure that the data you access meets your standards, whatever they may be. Know exactly who you’re working with and how the data was collected. Easily access new supply and demand for a more agile and accessible data strategy. Own your data strategy entirely with end-to-end control of inputs and outputs. Our platform simplifies and automates the most time- and labor-intensive aspects of data acquisition, so you can access new data sources in days, not months. With filters, budget controls, and automatic deduplication, you’ll only ever pay for the data you need, and nothing that you don’t.
    Starting Price: $0
  • 7
    LayerFive

    LayerFive

    LayerFive

    LayerFive uses patent-pending AI technology to resolve consumer identities across all enterprise data sources, both online e.g., website and mobile apps, and offline e.g., CRM, Loyalty, Order Management etc., and builds a unified consumer profile. Using this as a core platform, we help improve marketing ROI by 2X+ with our omni-channel attribution, consumer journey analytics solutions as part of the 360 Marketing Analytics product. Additionally, we help enterprises comply with data privacy regulations e.g., GDPR, CCPA etc. by making consumers’ profile available directly to the consumers for self-serve privacy compliance, helping enterprises save cost while reducing the risk of non-compliance. Deterministic and patent-pending probabilistic identity resolution technology to unify consumer data across all enterprise data sources. LayerFive’s first-party tag to collect highest fidelity data from enterprise website without impacting data quality due to third-party cookie loss.
    Starting Price: $499 per month
  • 8
    Retention.com

    Retention.com

    Retention.com

    Our retention solutions help you maximize audience growth, reclaim abandonment revenues, and reactivate lapsed audiences, across all channels. What if Jane Doe opts in to your list on her laptop at work… but she visits your site on her phone that evening and adds your products to her cart, but doesn’t purchase. You have no way to send Jane an abandoned cart flow because Jane’s phone is anonymous to you. This (and other) segments of unidentified abandoners represent up to 10x added revenue that is now lost. Retention.com’s Reclaim helps you leverage industry-leading Identity Resolution technology to increase your Browse, Product, and Cart Abandonment SMS and Email flow revenue by up to 10x. Onboarding is quick-and-easy, and implementation takes hours, not months. No managed services that you don’t need. Just the technology that you want to instantly scale up your abandonment flows for provable, “set-it-and-forget-it” ROI.
    Starting Price: $99 per month
  • 9
    Senzing

    Senzing

    Senzing

    Senzing® entity resolution API software provides the most advanced, affordable, and easy-to-use data matching and relationship detection capabilities available. With Senzing software, you can automatically resolve records into common entities in real time as new data is received. The complete view of all records related to every person or organization, across all of your internal and external data sources, can help you reduce costs and enable new revenue opportunities. Companies use Senzing entity resolution API to provide highly accurate views of people, organizations, and their relationships. You can deploy the Senzing entity resolution API on premises or in cloud-native deployments. Data remains in your ecosystem and never flows to Senzing. A free proof of concept can be completed in one day on AWS or on BareMetal. Senzing makes human-intelligent decisions without any pre-training or pre-tuning.
  • 10
    AddShoppers

    AddShoppers

    AddShoppers

    We make sure your best offers get in front of the right shoppers at the right time to keep them coming back for more. Schedule a 20 minute demo with our team to see sample campaigns from leading brands. Automagically receive verified offers in your inbox and while you shop online at the brands you love. Just sign up once and receive verified offers directly from brands, works for all web browsers and devices! Get transparency and control over how brands in our network are using your data. Claim your data and manage subscription preferences from thousands of brands all from one place. Our system allows for participating brands to contact you by email after you have engaged on their website without revealing your email to them unless you separately provide your email address to the brand directly through their channels (e.g., on their website when you shop or sign up to receive emails from them).
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