diff --git a/yobble/AppDelegate.swift b/yobble/AppDelegate.swift
index 7945c81..abba59b 100644
--- a/yobble/AppDelegate.swift
+++ b/yobble/AppDelegate.swift
@@ -6,6 +6,7 @@ import UserNotifications
 import UIKit
 
 class AppDelegate: NSObject, UIApplicationDelegate, UNUserNotificationCenterDelegate, MessagingDelegate {
+    private let pushTokenManager = PushTokenManager.shared
 
     func application(_ application: UIApplication,
                      didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {
@@ -52,6 +53,12 @@ class AppDelegate: NSObject, UIApplicationDelegate, UNUserNotificationCenterDele
     }
 
     func messaging(_ messaging: Messaging, didReceiveRegistrationToken fcmToken: String?) {
-        print("🔥 FCM token:", fcmToken ?? "NO TOKEN")
+        guard let fcmToken else {
+            if AppConfig.DEBUG { print("🔥 FCM token: NO TOKEN") }
+            return
+        }
+
+        if AppConfig.DEBUG { print("🔥 FCM token:", fcmToken) }
+        pushTokenManager.registerFCMToken(fcmToken)
     }
 }
diff --git a/yobble/Network/SessionsService.swift b/yobble/Network/SessionsService.swift
index acd40b0..35f42b8 100644
--- a/yobble/Network/SessionsService.swift
+++ b/yobble/Network/SessionsService.swift
@@ -171,6 +171,50 @@ final class SessionsService {
         }
     }
 
+    func updatePushToken(_ token: String, completion: @escaping (Result<String, Error>) -> Void) {
+        client.request(
+            path: "/v1/auth/sessions/update_push_token",
+            method: .post,
+            query: ["fcm_token": token],
+            requiresAuth: true
+        ) { [decoder] result in
+            switch result {
+            case .success(let response):
+                do {
+                    let apiResponse = try decoder.decode(APIResponse<MessagePayload>.self, from: response.data)
+                    guard apiResponse.status == "fine" else {
+                        let message = apiResponse.detail ?? NSLocalizedString("Не удалось обновить push-токен.", comment: "Sessions service update push unexpected status")
+                        completion(.failure(SessionsServiceError.unexpectedStatus(message)))
+                        return
+                    }
+                    completion(.success(apiResponse.data.message))
+                } catch {
+                    let debugMessage = Self.describeDecodingError(error: error, data: response.data)
+                    if AppConfig.DEBUG {
+                        print("[SessionsService] decode update-push failed: \(debugMessage)")
+                    }
+                    completion(.failure(SessionsServiceError.decoding(debugDescription: debugMessage)))
+                }
+            case .failure(let error):
+                if case let NetworkError.server(_, data) = error,
+                   let data,
+                   let message = Self.errorMessage(from: data) {
+                    completion(.failure(SessionsServiceError.unexpectedStatus(message)))
+                    return
+                }
+                completion(.failure(error))
+            }
+        }
+    }
+
+    func updatePushToken(_ token: String) async throws -> String {
+        try await withCheckedThrowingContinuation { continuation in
+            updatePushToken(token) { result in
+                continuation.resume(with: result)
+            }
+        }
+    }
+
     private static func decodeDate(from decoder: Decoder) throws -> Date {
         let container = try decoder.singleValueContainer()
         let string = try container.decode(String.self)
diff --git a/yobble/Resources/Localizable.xcstrings b/yobble/Resources/Localizable.xcstrings
index 701f282..6311b08 100644
--- a/yobble/Resources/Localizable.xcstrings
+++ b/yobble/Resources/Localizable.xcstrings
@@ -1198,6 +1198,9 @@
     "Не удалось найти результаты." : {
       "comment" : "Search unexpected status"
     },
+    "Не удалось обновить push-токен." : {
+      "comment" : "Sessions service update push unexpected status"
+    },
     "Не удалось обновить пароль." : {
       "localizations" : {
         "en" : {
diff --git a/yobble/Services/PushTokenManager.swift b/yobble/Services/PushTokenManager.swift
new file mode 100644
index 0000000..3cc69f4
--- /dev/null
+++ b/yobble/Services/PushTokenManager.swift
@@ -0,0 +1,155 @@
+import Foundation
+import UIKit
+
+final class PushTokenManager {
+    static let shared = PushTokenManager()
+
+    private let queue = DispatchQueue(label: "org.yobble.push-token", qos: .utility)
+    private let sessionsService: SessionsService
+    private var currentFCMToken: String?
+    private var lastSentTokens: [String: String]
+    private var loginsRequiringSync: Set<String> = []
+    private var isUpdating = false
+    private var pendingUpdate = false
+    private var retryWorkItem: DispatchWorkItem?
+    private var notificationTokens: [NSObjectProtocol] = []
+
+    private enum Keys {
+        static let storedToken = "push.current_fcm_token"
+        static let sentTokens = "push.last_sent_tokens"
+        static let currentUser = "currentUser"
+    }
+
+    private enum Constants {
+        static let retryDelay: TimeInterval = 20
+    }
+
+    private init(sessionsService: SessionsService = SessionsService()) {
+        self.sessionsService = sessionsService
+        let defaults = UserDefaults.standard
+        self.currentFCMToken = defaults.string(forKey: Keys.storedToken)
+        self.lastSentTokens = defaults.dictionary(forKey: Keys.sentTokens) as? [String: String] ?? [:]
+        observeNotifications()
+
+        queue.async { [weak self] in
+            guard let self else { return }
+            if let login = self.currentLogin() {
+                self.loginsRequiringSync.insert(login)
+            }
+            self.pendingUpdate = true
+            self.tryUpdateTokenIfNeeded()
+        }
+    }
+
+    deinit {
+        notificationTokens.forEach { NotificationCenter.default.removeObserver($0) }
+        notificationTokens.removeAll()
+    }
+
+    func registerFCMToken(_ token: String) {
+        queue.async { [weak self] in
+            guard let self else { return }
+            guard self.currentFCMToken != token else { return }
+
+            self.currentFCMToken = token
+            UserDefaults.standard.set(token, forKey: Keys.storedToken)
+
+            if let login = self.currentLogin() {
+                self.loginsRequiringSync.insert(login)
+            }
+
+            self.pendingUpdate = true
+            self.tryUpdateTokenIfNeeded()
+        }
+    }
+
+    private func observeNotifications() {
+        let center = NotificationCenter.default
+
+        let accessTokenObserver = center.addObserver(forName: .accessTokenDidChange, object: nil, queue: nil) { [weak self] _ in
+            guard let self else { return }
+            self.queue.async {
+                if let login = self.currentLogin() {
+                    self.loginsRequiringSync.insert(login)
+                } else {
+                    self.loginsRequiringSync.removeAll()
+                }
+                self.pendingUpdate = true
+                self.tryUpdateTokenIfNeeded()
+            }
+        }
+        notificationTokens.append(accessTokenObserver)
+
+        let didBecomeActiveObserver = center.addObserver(forName: UIApplication.didBecomeActiveNotification, object: nil, queue: nil) { [weak self] _ in
+            guard let self else { return }
+            self.queue.async {
+                self.pendingUpdate = true
+                self.tryUpdateTokenIfNeeded()
+            }
+        }
+        notificationTokens.append(didBecomeActiveObserver)
+    }
+
+    private func tryUpdateTokenIfNeeded() {
+        guard pendingUpdate else { return }
+        guard !isUpdating else { return }
+        guard let login = currentLogin() else { return }
+        guard let token = currentFCMToken, !token.isEmpty else { return }
+
+        let needsForcedSync = loginsRequiringSync.contains(login)
+        if !needsForcedSync, let lastToken = lastSentTokens[login], lastToken == token {
+            pendingUpdate = false
+            return
+        }
+
+        pendingUpdate = false
+        isUpdating = true
+        retryWorkItem?.cancel()
+        retryWorkItem = nil
+
+        sessionsService.updatePushToken(token) { [weak self] result in
+            guard let self else { return }
+            self.queue.async {
+                self.isUpdating = false
+
+                switch result {
+                case .success:
+                    self.loginsRequiringSync.remove(login)
+                    self.lastSentTokens[login] = token
+                    UserDefaults.standard.set(self.lastSentTokens, forKey: Keys.sentTokens)
+                    if AppConfig.DEBUG {
+                        print("[PushTokenManager] Push token updated for @\(login)")
+                    }
+                case .failure(let error):
+                    if AppConfig.DEBUG {
+                        print("[PushTokenManager] Failed to update push token: \(error.localizedDescription)")
+                    }
+                    self.loginsRequiringSync.insert(login)
+                    self.pendingUpdate = true
+                    self.scheduleRetry()
+                }
+
+                self.tryUpdateTokenIfNeeded()
+            }
+        }
+    }
+
+    private func scheduleRetry() {
+        guard retryWorkItem == nil else { return }
+        let workItem = DispatchWorkItem { [weak self] in
+            guard let self else { return }
+            self.retryWorkItem = nil
+            self.pendingUpdate = true
+            self.tryUpdateTokenIfNeeded()
+        }
+        retryWorkItem = workItem
+        queue.asyncAfter(deadline: .now() + Constants.retryDelay, execute: workItem)
+    }
+
+    private func currentLogin() -> String? {
+        guard let login = UserDefaults.standard.string(forKey: Keys.currentUser), !login.isEmpty else {
+            return nil
+        }
+        return login
+    }
+}