diff --git a/Sources/AppcuesKit/Appcues.swift b/Sources/AppcuesKit/Appcues.swift
index 398e63188..a7216c5d0 100644
--- a/Sources/AppcuesKit/Appcues.swift
+++ b/Sources/AppcuesKit/Appcues.swift
@@ -232,6 +232,17 @@ public class Appcues: NSObject {
         }
     }
 
+    /// Provide the APNs device token to Appcues.
+    ///
+    /// - Parameter deviceToken: A globally unique token that identifies this device to APNs.
+    ///
+    /// This function is intended to be called from  your `UIApplicationDelegate`'s
+    /// `application(_:didRegisterForRemoteNotificationsWithDeviceToken:)` function:
+    @objc
+    public func setPushToken(_ deviceToken: Data?) {
+        storage.pushToken = deviceToken?.map { String(format: "%02x", $0) }.joined()
+    }
+
     /// Register a trait that modifies an `Experience`.
     /// - Parameter trait: Trait to register.
     /// - Returns: Whether the trait was successfully registered.
diff --git a/Sources/AppcuesKit/Data/Analytics/AutoPropertyDecorator.swift b/Sources/AppcuesKit/Data/Analytics/AutoPropertyDecorator.swift
index eb57cc258..4ec7d0539 100644
--- a/Sources/AppcuesKit/Data/Analytics/AutoPropertyDecorator.swift
+++ b/Sources/AppcuesKit/Data/Analytics/AutoPropertyDecorator.swift
@@ -133,16 +133,23 @@ internal class AutoPropertyDecorator: AnalyticsDecorating {
     }
 
     private func deviceAutoProperties() -> [String: Any] {
-        [
+        // Explicitly encode null value
+        let pushToken: Any = storage.pushToken ?? NSNull()
+
+        var properties = [
             "_deviceId": storage.deviceID,
-            "_language": deviceLanguage,
+            "_pushToken": pushToken,
             // TODO: more properties
-            // _pushToken
             // _pushSubscriptionStatus
             // _pushEnabled
             // _pushEnabledBackground
         ]
-            .compactMapValues { $0 }
+
+        if let language = deviceLanguage {
+            properties["_language"] = language
+        }
+
+        return properties
     }
 }
 
diff --git a/Sources/AppcuesKit/Data/Networking/DynamicCodingKeys.swift b/Sources/AppcuesKit/Data/Networking/DynamicCodingKeys.swift
index 0b00cb225..53dfe1283 100644
--- a/Sources/AppcuesKit/Data/Networking/DynamicCodingKeys.swift
+++ b/Sources/AppcuesKit/Data/Networking/DynamicCodingKeys.swift
@@ -63,6 +63,8 @@ extension KeyedEncodingContainer where K == DynamicCodingKeys {
                     try self.encode(bool, forKey: codingKey)
                 case let date as Date:
                     try self.encode(date, forKey: codingKey)
+                case is NSNull:
+                    try self.encodeNil(forKey: codingKey)
                 default:
                     encodingErrorKeys.append(codingKey.stringValue)
                 }
diff --git a/Sources/AppcuesKit/Data/Storage.swift b/Sources/AppcuesKit/Data/Storage.swift
index a7d1316e3..91fbe35cd 100644
--- a/Sources/AppcuesKit/Data/Storage.swift
+++ b/Sources/AppcuesKit/Data/Storage.swift
@@ -26,6 +26,9 @@ internal protocol DataStoring: AnyObject {
 
     /// Optional, base 64 encoded signature to use as bearer token on API requests from the current user
     var userSignature: String? { get set }
+
+    /// Push token for APNs
+    var pushToken: String? { get set }
 }
 
 internal class Storage: DataStoring {
@@ -37,6 +40,7 @@ internal class Storage: DataStoring {
         case lastContentShownAt
         case groupID
         case userSignature
+        case pushToken
     }
 
     private let config: Appcues.Config
@@ -99,6 +103,15 @@ internal class Storage: DataStoring {
         }
     }
 
+    internal var pushToken: String? {
+        get {
+            return read(.pushToken, defaultValue: nil)
+        }
+        set {
+            write(.pushToken, newValue: newValue)
+        }
+    }
+
     init(container: DIContainer) {
         self.config = container.resolve(Appcues.Config.self)
         self.deviceID = UIDevice.identifier