diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..46c791e
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "iBox/Resources/Version"]
+	path = iBox/Resources/Version
+	url = https://github.com/42Box/versioning
diff --git a/iBox/Resources/Version b/iBox/Resources/Version
new file mode 160000
index 0000000..172ce29
--- /dev/null
+++ b/iBox/Resources/Version
@@ -0,0 +1 @@
+Subproject commit 172ce2939fccd76558f254adfb7b02535f97113c
diff --git a/iBox/Sources/AppDelegate.swift b/iBox/Sources/AppDelegate.swift
index 1d9e30e..f21e00c 100644
--- a/iBox/Sources/AppDelegate.swift
+++ b/iBox/Sources/AppDelegate.swift
@@ -10,11 +10,11 @@ import CoreData
 
 @main
 class AppDelegate: UIResponder, UIApplicationDelegate {
-
-
+    let versioningHandler: VersioningHandler = VersioningHandler()
 
     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
-        // Override point for customization after application launch.
+        
+        versioningHandler.checkAppVersion()
         return true
     }
 
diff --git a/iBox/Sources/Model/VersionInfo.swift b/iBox/Sources/Model/VersionInfo.swift
new file mode 100644
index 0000000..331a7cb
--- /dev/null
+++ b/iBox/Sources/Model/VersionInfo.swift
@@ -0,0 +1,27 @@
+//
+//  Versioning.swift
+//  iBox
+//
+//  Created by Chan on 2/29/24.
+//
+
+// MARK: - VersionInfo
+struct VersionInfo: Codable {
+    let version: [Version]
+    let url: URLClass
+}
+
+// MARK: - URLClass
+struct URLClass: Codable {
+    let updateURL: String?
+
+    enum CodingKeys: String, CodingKey {
+        case updateURL = "updateUrl"
+    }
+}
+
+// MARK: - Version
+struct Version: Codable {
+    let id: Int
+    let latestVersion, minRequiredVersion: String
+}
diff --git a/iBox/Sources/Versioning/VersioningHandler.swift b/iBox/Sources/Versioning/VersioningHandler.swift
new file mode 100644
index 0000000..b082c0f
--- /dev/null
+++ b/iBox/Sources/Versioning/VersioningHandler.swift
@@ -0,0 +1,69 @@
+//
+//  VersioningHandler.swift
+//  iBox
+//
+//  Created by Chan on 3/2/24.
+//
+
+import UIKit
+
+class VersioningHandler {
+    
+    func checkAppVersion() {
+        let urlString = "https://my-json-server.typicode.com/42Box/versioning/db"
+        guard let url = URL(string: urlString) else { return }
+        
+        let task = URLSession.shared.dataTask(with: url) { [weak self] data, response, error in
+            guard let data = data, error == nil else { return }
+            
+            do {
+                let versionInfo = try JSONDecoder().decode(VersionInfo.self, from: data)
+                guard let latestVersion = versionInfo.version.first?.latestVersion,
+                      let minRequiredVersion = versionInfo.version.first?.minRequiredVersion,
+                      let updateUrl = versionInfo.url.updateURL else { return }
+                
+                DispatchQueue.main.async {
+                    self?.compareVersion(latestVersion: latestVersion, minRequiredVersion: minRequiredVersion, updateUrl: updateUrl)
+                }
+            } catch {
+                print(error)
+            }
+        }
+        
+        task.resume()
+    }
+    
+    func compareVersion(latestVersion: String, minRequiredVersion: String, updateUrl: String) {
+        guard let appVersion = Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String else { return }
+        
+        if appVersion.compare(minRequiredVersion, options: .numeric) == .orderedAscending {
+            showAlertForUpdate(updateUrl: updateUrl, isMandatory: true)
+        } else if appVersion.compare(latestVersion, options: .numeric) == .orderedAscending {
+            showAlertForUpdate(updateUrl: updateUrl, isMandatory: false)
+        }
+    }
+    
+    
+    func showAlertForUpdate(updateUrl: String, isMandatory: Bool) {
+        guard let windowScene = UIApplication.shared.connectedScenes.first(where: { $0 is UIWindowScene }) as? UIWindowScene,
+              let rootViewController = windowScene.windows.first(where: { $0.isKeyWindow })?.rootViewController else {
+            return
+        }
+        
+        
+        let message = isMandatory ? "새로운 버전이 필요합니다. 업데이트 하시겠습니까?" : "새로운 버전이 있습니다. 업데이트 하시겠습니까?"
+        let alert = UIAlertController(title: "업데이트 알림", message: message, preferredStyle: .alert)
+        
+        alert.addAction(UIAlertAction(title: "업데이트", style: .default, handler: { _ in
+            if let url = URL(string: updateUrl), UIApplication.shared.canOpenURL(url) {
+                UIApplication.shared.open(url)
+            }
+        }))
+        
+        if !isMandatory {
+            alert.addAction(UIAlertAction(title: "나중에", style: .cancel))
+        }
+        
+        rootViewController.present(alert, animated: true)
+    }
+}