Signal Hub

After signing up for Signal Hub, AppsFlyer will arrange a brief meeting to discuss the specifics of your collaboration, including which purchase signals will be included. Afterwards, you’ll receive a collaboration invite via email. Click the link in the email, log in to your account, and accept the collaboration.

If you want to build audiences using your first-party data, you can associate your existing AppsFlyer data (your SDK data) with the collaboration you were invited to.

Additionally, you can connect external data sources, such as your CRM or other relevant systems, directly to your clean room. Data remains in place and is never moved or copied—AppsFlyer is granted read-only access only. 

Once you have all the relevant data sources associated with your collaboration, you can start building an enriched audience using the purchase signals data source. When done, you’re ready to send them for activation. 

After running your campaigns, check out the results in your AppsFlyer dashboards, such as the Performance Analysis dashboard.

A mobile gaming publisher wants to acquire players likely to spend shortly after installing. By combining demographic attributes (e.g., males aged 18–34) with in-app purchase history, they can create high-value segments and activate them across ad networks. This leads to stronger Day 1 ROAS and reduced CPIs.

A hotel chain plans to drive bookings for a Valentine’s Day promotion. By combining marital status, recent flight bookings, and travel-related spend, they can build a high-intent audience of couples likely to book getaways. Activating this audience across media channels boosts engagement and increases reservations.

A consumer electronics brand wants to promote new smart TVs. By leveraging streaming platform data (such as device ownership, subscription purchases, and engagement with entertainment apps), they can identify premium households and run highly targeted campaigns. This improves conversions for big-ticket items.

Signal Hub connects marketers with real-world purchase signals in a privacy-safe way—ensuring no raw data is ever moved, shared, or exported.

1. Aggregated purchase data 
   Signal Hub partners with leading brands (e.g., Mastercard), which share aggregated purchase data at the ZIP+4 level (about 10–20 households). For example, Mastercard might show that “70% of consumers in this ZIP+4 purchased at Shoprite” — offering real-world spending insights without user-level data.
2. Identity resolution 
   Since ZIP+4 data can’t be used directly for ad targeting, integrated AppsFlyer identity resolution partners translate it into privacy-safe hashed identifiers, such as hashed emails, that media platforms can recognize. Learn more
3. Audience building and activation 
   Marketers can combine these purchase signals with their own first-party data inside AppsFlyer’s clean room to create enriched audience segments. Once activated, the audiences are securely matched and delivered to media platforms, while AppsFlyer measures performance across channels.

Signal Hub provides an enrichment metric to help you understand how much of the aggregated ZIP+4 data can be resolved into identifiers usable for activation. Identity enrichment refers to this process—matching aggregated purchase signal data (at the ZIP+4 level) to privacy-safe identifiers that can be used for audience activation.

In the data source shared to the collaboration, the Identity enrichment percentage shows how much of the provider’s ZIP+4 data was successfully matched to privacy-safe identifiers that can be used for activation. 

• Data provider: The number of ZIP+4 groups shared by the purchase signal provider (e.g., Mastercard).
• Identity data: The number of those ZIP+4 groups that the identity resolution partner successfully matched to hashed identifiers (for example, hashed emails).
• Estimated data pool: The estimated number of users represented by the combined and enriched ZIP+4 data. This total reflects the audience size available for activation after matching.

The enrichment percentage shown next to “Customer data” (in the image above) represents the overlap between these two data sets—indicating how much of the provider’s data is ready for use in AppsFlyer audience building and activation.

The Signal Hub functions as the central point for data collaboration, including audience creation and activation. It relies on the advanced technology of the Data Clean Room (DCR) to guarantee data privacy and security across all collaboration and audience management processes.

You can add your own custom first-party data to Signal Hub as external data sources to build accurate audiences based on what you know about your customers. To do so, follow these steps: 

1. Set up your cloud services.
2. Create your data sources.
3. Connect your cloud services to AppsFlyer.