diff --git a/src/helpers/ua-parser-helpers.d.ts b/src/helpers/ua-parser-helpers.d.ts
index 4a233af..c7e9b1e 100644
--- a/src/helpers/ua-parser-helpers.d.ts
+++ b/src/helpers/ua-parser-helpers.d.ts
@@ -6,8 +6,10 @@ import { IResult } from "../main/ua-parser";
 
 declare function isAppleSilicon(res: IResult): boolean;
 declare function isChromiumBased(res: IResult): boolean;
+declare function isFrozenUA(ua: string): boolean;
 
 export {
     isAppleSilicon,
-    isChromiumBased
+    isChromiumBased,
+    isFrozenUA
 }
\ No newline at end of file
diff --git a/src/helpers/ua-parser-helpers.js b/src/helpers/ua-parser-helpers.js
index e11a421..350b029 100644
--- a/src/helpers/ua-parser-helpers.js
+++ b/src/helpers/ua-parser-helpers.js
@@ -13,7 +13,10 @@ const isAppleSilicon = (res) => res.os.is(OS.MACOS) && res.cpu.is(CPU.ARM);
 
 const isChromiumBased = (res) => res.engine.is(Engine.BLINK);
 
+const isFrozenUA = (ua) => /^Mozilla\/5\.0 \((Windows NT 10\.0; Win64; x64|Macintosh; Intel Mac OS X 10_15_7|X11; Linux x86_64|X11; CrOS x86_64 14541\.0\.0|Fuchsia|Linux; Android 10; K)\) AppleWebKit\/537\.36 \(KHTML, like Gecko\) Chrome\/\d+\.0\.0\.0 (Mobile )?Safari\/537\.36/.test(ua);
+
 module.exports = { 
     isAppleSilicon,
-    isChromiumBased
+    isChromiumBased,
+    isFrozenUA
 }
\ No newline at end of file