diff --git a/Sources/Gifu/Classes/Animator.swift b/Sources/Gifu/Classes/Animator.swift
index 0457968..3010192 100644
--- a/Sources/Gifu/Classes/Animator.swift
+++ b/Sources/Gifu/Classes/Animator.swift
@@ -8,7 +8,7 @@ public class Animator {
   var loopDuration: TimeInterval {
     return frameStore?.loopDuration ?? 0
   }
-    
+
   /// Number of frame to buffer.
   var frameBufferSize = 50
 
@@ -60,21 +60,21 @@ public class Animator {
   /// Checks if there is a new frame to display.
   fileprivate func updateFrameIfNeeded() {
     guard let store = frameStore else { return }
-    
+
     if store.isFinished {
-        stopAnimating()
-        if let animationBlock = animationBlock {
-            animationBlock()
-        }
-        return
+      stopAnimating()
+      if let animationBlock = animationBlock {
+        animationBlock()
+      }
+      return
     }
-    
+
     store.shouldChangeFrame(with: displayLink.duration) {
       if $0 {
-          delegate.animatorHasNewFrame()
-          if store.isLoopFinished, let loopBlock = loopBlock {
-              loopBlock()
-          }
+        delegate.animatorHasNewFrame()
+        if store.isLoopFinished, let loopBlock = loopBlock {
+          loopBlock()
+        }
       }
     }
   }
@@ -89,8 +89,8 @@ public class Animator {
   /// - parameter completionHandler: Completion callback function
   func prepareForAnimation(withGIFNamed imageName: String, inBundle bundle: Bundle = .main, size: CGSize, contentMode: UIView.ContentMode, loopCount: Int = 0, completionHandler: (() -> Void)? = nil) {
     guard let extensionRemoved = imageName.components(separatedBy: ".")[safe: 0],
-      let imagePath = bundle.url(forResource: extensionRemoved, withExtension: "gif"),
-      let data = try? Data(contentsOf: imagePath) else { return }
+          let imagePath = bundle.url(forResource: extensionRemoved, withExtension: "gif"),
+          let data = try? Data(contentsOf: imagePath) else { return }
 
     prepareForAnimation(withGIFData: data,
                         size: size,
diff --git a/Sources/Gifu/Classes/FrameStore.swift b/Sources/Gifu/Classes/FrameStore.swift
index 7a7428f..6bf4ba5 100644
--- a/Sources/Gifu/Classes/FrameStore.swift
+++ b/Sources/Gifu/Classes/FrameStore.swift
@@ -166,17 +166,6 @@ class FrameStore {
   }
 }
 
-extension UIImage {
-  var memorySize: Int {
-    guard let cgImage = self.cgImage else { return 0 }
-    let instanceSize = MemoryLayout<UIImage>.size(ofValue: self)
-    let pixmapSize = cgImage.height * cgImage.bytesPerRow
-    let totalSize = instanceSize + pixmapSize
-    return totalSize
-  }
-}
-
-
 private extension FrameStore {
   /// Optionally loads a single frame from an image source, resizes it if required, then returns an `UIImage`.
   ///
@@ -322,6 +311,10 @@ private extension FrameStore {
       loadFrameAtIndexIfNeeded(index)
     }
 
+    if #available(iOSApplicationExtension 15.0, *) {
+      print(#function, "Cache:", totalFrameCacheSize.formatted(.byteCount(style: .memory)))
+    }
+
     self.loopDuration = duration
   }
 
@@ -329,5 +322,14 @@ private extension FrameStore {
   func resetAnimatedFrames() {
     animatedFrames = []
   }
+
+  private var totalFrameCacheSize: Int {
+    animatedFrames
+      .filter({ !$0.isPlaceholder })
+      .compactMap(\.image)
+      .reduce(0) { size, image in
+        size + image.memorySize
+      }
+  }
 }
 #endif
diff --git a/Sources/Gifu/Extensions/UIImage.swift b/Sources/Gifu/Extensions/UIImage.swift
index c1368ac..e351a7c 100644
--- a/Sources/Gifu/Extensions/UIImage.swift
+++ b/Sources/Gifu/Extensions/UIImage.swift
@@ -48,5 +48,14 @@ extension UIImage {
   class func size(withImageData data: Data) -> CGSize? {
     return UIImage(data: data)?.size
   }
+
+  var memorySize: Int {
+    guard let cgImage = self.cgImage else { return 0 }
+    let instanceSize = MemoryLayout<UIImage>.size(ofValue: self)
+    let pixmapSize = cgImage.height * cgImage.bytesPerRow
+    let totalSize = instanceSize + pixmapSize
+    return totalSize
+  }
 }
 #endif
+