diff --git a/CHANGELOG.md b/CHANGELOG.md
index 667ad620c..fc489cdeb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+### Fixes
+
+- The SDK now correctly syncs attachments to the native layer on iOS and macOS (with the Cococa backend) for non-crashing events. ([#2743](https://github.com/getsentry/sentry-unity/pull/2743))
+
 ### Dependencies
 
 - Bump CLI from v3.5.1 to v3.6.0 ([#2741](https://github.com/getsentry/sentry-unity/pull/2741))
diff --git a/package-dev/Plugins/iOS/SentryNativeBridge.m b/package-dev/Plugins/iOS/SentryNativeBridge.m
index f9d643af3..0e5c27e84 100644
--- a/package-dev/Plugins/iOS/SentryNativeBridge.m
+++ b/package-dev/Plugins/iOS/SentryNativeBridge.m
@@ -255,6 +255,47 @@ void SentryNativeBridgeSetTrace(const char *traceId, const char *spanId)
     }
 }
 
+void SentryNativeBridgeAddFileAttachment(
+    const char *path, const char *filename, const char *contentType)
+{
+    if (path == NULL) {
+        return;
+    }
+
+    NSString *pathStr = [NSString stringWithUTF8String:path];
+    NSString *filenameStr = _NSStringOrNil(filename);
+    NSString *contentTypeStr = _NSStringOrNil(contentType);
+
+    SentryAttachment *attachment = [[SentryAttachment alloc] initWithPath:pathStr
+                                                                 filename:filenameStr
+                                                              contentType:contentTypeStr];
+
+    [SentrySDK configureScope:^(SentryScope *scope) { [scope addAttachment:attachment]; }];
+}
+
+void SentryNativeBridgeAddByteAttachment(
+    const uint8_t *bytes, int32_t length, const char *filename, const char *contentType)
+{
+    if (bytes == NULL || filename == NULL) {
+        return;
+    }
+
+    NSData *data = [NSData dataWithBytes:bytes length:length];
+    NSString *filenameStr = [NSString stringWithUTF8String:filename];
+    NSString *contentTypeStr = _NSStringOrNil(contentType);
+
+    SentryAttachment *attachment = [[SentryAttachment alloc] initWithData:data
+                                                                 filename:filenameStr
+                                                              contentType:contentTypeStr];
+
+    [SentrySDK configureScope:^(SentryScope *scope) { [scope addAttachment:attachment]; }];
+}
+
+void SentryNativeBridgeClearAttachments()
+{
+    [SentrySDK configureScope:^(SentryScope *scope) { [scope clearAttachments]; }];
+}
+
 void SentryNativeBridgeWriteScope( // clang-format off
     // // const char *AppStartTime,
     // const char *AppBuildType,
diff --git a/package-dev/Plugins/iOS/SentryNativeBridgeNoOp.m b/package-dev/Plugins/iOS/SentryNativeBridgeNoOp.m
index f9eab6e99..8c6a513e7 100644
--- a/package-dev/Plugins/iOS/SentryNativeBridgeNoOp.m
+++ b/package-dev/Plugins/iOS/SentryNativeBridgeNoOp.m
@@ -34,6 +34,14 @@ void SentryNativeBridgeUnsetUser() { }
 
 void SentryNativeBridgeSetTrace(const char *traceId, const char *spanId) { }
 
+void SentryNativeBridgeAddFileAttachment(
+    const char *path, const char *filename, const char *contentType) { }
+
+void SentryNativeBridgeAddByteAttachment(
+    const uint8_t *bytes, int32_t length, const char *filename, const char *contentType) { }
+
+void SentryNativeBridgeClearAttachments() { }
+
 void SentryNativeBridgeWriteScope( // clang-format off
     // // const char *AppStartTime,
     // const char *AppBuildType,
diff --git a/package-dev/Plugins/macOS/SentryNativeBridge.m b/package-dev/Plugins/macOS/SentryNativeBridge.m
index 52270547f..0384cd0e5 100644
--- a/package-dev/Plugins/macOS/SentryNativeBridge.m
+++ b/package-dev/Plugins/macOS/SentryNativeBridge.m
@@ -47,6 +47,7 @@
 static Class SentrySpanId;
 static Class PrivateSentrySDKOnly;
 static Class SentryHttpStatusCodeRange;
+static Class SentryAttachment;
 
 #define LOAD_CLASS_OR_BREAK(name)                                                                  \
     name = (__bridge Class)dlsym(dylib, "OBJC_CLASS_$_" #name);                                    \
@@ -90,6 +91,7 @@ int SentryNativeBridgeLoadLibrary()
             LOAD_CLASS_OR_BREAK(SentrySpanId)
             LOAD_CLASS_OR_BREAK(PrivateSentrySDKOnly)
             LOAD_CLASS_OR_BREAK(SentryHttpStatusCodeRange)
+            LOAD_CLASS_OR_BREAK(SentryAttachment)
 
             // everything above passed - mark as successfully loaded
             loadStatus = 1;
@@ -357,12 +359,63 @@ void SentryNativeBridgeSetTrace(const char *traceId, const char *spanId)
         performSelector:@selector(initWithValue:)
         withObject:[NSString stringWithUTF8String:spanId]];
     
-    [PrivateSentrySDKOnly 
-        performSelector:@selector(setTrace:spanId:) 
-        withObject:sentryTraceId 
+    [PrivateSentrySDKOnly
+        performSelector:@selector(setTrace:spanId:)
+        withObject:sentryTraceId
         withObject:sentrySpanId];
 }
 
+void SentryNativeBridgeAddFileAttachment(
+    const char *path, const char *filename, const char *contentType)
+{
+    if (path == NULL) {
+        return;
+    }
+
+    NSString *pathStr = [NSString stringWithUTF8String:path];
+    NSString *filenameStr = _NSStringOrNil(filename);
+    NSString *contentTypeStr = _NSStringOrNil(contentType);
+
+    // initWithPath:filename:contentType: - use objc_msgSend directly for the multi-arg init
+    id attachment = ((id (*)(id, SEL, NSString *, NSString *, NSString *))objc_msgSend)(
+        [SentryAttachment alloc], @selector(initWithPath:filename:contentType:), pathStr,
+        filenameStr, contentTypeStr);
+    if (!attachment) {
+        return;
+    }
+
+    SentryConfigureScope(
+        ^(id scope) { [scope performSelector:@selector(addAttachment:) withObject:attachment]; });
+}
+
+void SentryNativeBridgeAddByteAttachment(
+    const uint8_t *bytes, int32_t length, const char *filename, const char *contentType)
+{
+    if (bytes == NULL || filename == NULL) {
+        return;
+    }
+
+    NSData *data = [NSData dataWithBytes:bytes length:length];
+    NSString *filenameStr = [NSString stringWithUTF8String:filename];
+    NSString *contentTypeStr = _NSStringOrNil(contentType);
+
+    // initWithData:filename:contentType: - use objc_msgSend directly for the multi-arg init
+    id attachment = ((id (*)(id, SEL, NSData *, NSString *, NSString *))objc_msgSend)(
+        [SentryAttachment alloc], @selector(initWithData:filename:contentType:), data, filenameStr,
+        contentTypeStr);
+    if (!attachment) {
+        return;
+    }
+
+    SentryConfigureScope(
+        ^(id scope) { [scope performSelector:@selector(addAttachment:) withObject:attachment]; });
+}
+
+void SentryNativeBridgeClearAttachments()
+{
+    SentryConfigureScope(^(id scope) { [scope performSelector:@selector(clearAttachments)]; });
+}
+
 void SentryNativeBridgeWriteScope( // clang-format off
     // // const char *AppStartTime,
     // const char *AppBuildType,
diff --git a/src/Sentry.Unity.iOS/NativeScopeObserver.cs b/src/Sentry.Unity.iOS/NativeScopeObserver.cs
index 1bedc6b92..57f286cce 100644
--- a/src/Sentry.Unity.iOS/NativeScopeObserver.cs
+++ b/src/Sentry.Unity.iOS/NativeScopeObserver.cs
@@ -55,20 +55,14 @@ public override void SetUserImpl(SentryUser user) =>
     public override void SetTraceImpl(SentryId traceId, SpanId spanId) =>
         SentryCocoaBridgeProxy.SetTrace(traceId.ToString(), spanId.ToString());
 
-    public override void AddFileAttachmentImpl(string filePath, string fileName, string? contentType)
-    {
-        // iOS/macOS attachment sync to sentry-cocoa is not yet supported.
-    }
+    public override void AddFileAttachmentImpl(string filePath, string fileName, string? contentType) =>
+        SentryCocoaBridgeProxy.AddFileAttachment(filePath, fileName, contentType);
 
-    public override void AddByteAttachmentImpl(byte[] data, string fileName, string? contentType)
-    {
-        // iOS/macOS attachment sync to sentry-cocoa is not yet supported.
-    }
+    public override void AddByteAttachmentImpl(byte[] data, string fileName, string? contentType) =>
+        SentryCocoaBridgeProxy.AddByteAttachment(data, data.Length, fileName, contentType);
 
-    public override void ClearAttachmentsImpl()
-    {
-        // iOS/macOS attachment sync to sentry-cocoa is not yet supported.
-    }
+    public override void ClearAttachmentsImpl() =>
+        SentryCocoaBridgeProxy.ClearAttachments();
 
     internal static string GetTimestamp(DateTimeOffset timestamp) =>
         // "o": Using ISO 8601 to make sure the timestamp makes it to the bridge correctly.
diff --git a/src/Sentry.Unity.iOS/SentryCocoaBridgeProxy.cs b/src/Sentry.Unity.iOS/SentryCocoaBridgeProxy.cs
index 70055b56e..03cfcc120 100644
--- a/src/Sentry.Unity.iOS/SentryCocoaBridgeProxy.cs
+++ b/src/Sentry.Unity.iOS/SentryCocoaBridgeProxy.cs
@@ -151,4 +151,13 @@ public static extern void AddBreadcrumb(string timestamp, string? message, strin
 
     [DllImport("__Internal", EntryPoint = "SentryNativeBridgeSetTrace")]
     public static extern void SetTrace(string traceId, string spanId);
+
+    [DllImport("__Internal", EntryPoint = "SentryNativeBridgeAddFileAttachment")]
+    public static extern void AddFileAttachment(string path, string fileName, string? contentType);
+
+    [DllImport("__Internal", EntryPoint = "SentryNativeBridgeAddByteAttachment")]
+    public static extern void AddByteAttachment(byte[] bytes, int length, string fileName, string? contentType);
+
+    [DllImport("__Internal", EntryPoint = "SentryNativeBridgeClearAttachments")]
+    public static extern void ClearAttachments();
 }