diff --git a/gogio/help.go b/gogio/help.go
index 0338344..778a559 100644
--- a/gogio/help.go
+++ b/gogio/help.go
@@ -69,7 +69,8 @@ its deletion.
 The -x flag will print all the external commands executed by the gogio tool.
 
 The -signkey flag specifies the path of the keystore, used for signing Android apk/aab files
-or specifies the name of key on Keychain to sign MacOS app.
+or specifies the name of key on Keychain to sign MacOS apps. On iOS and macOS it can be used 
+to specify the path of a provisioning profile (.mobileprovision/.provisionprofile).
 
 The -signpass flag specifies the password of the keystore, ignored if -signkey is not provided.
 If -signpass is not sepecified it will be read from the environment variable GOGIO_SIGNPASS.
diff --git a/gogio/iosbuild.go b/gogio/iosbuild.go
index 5d1db69..08bca1b 100644
--- a/gogio/iosbuild.go
+++ b/gogio/iosbuild.go
@@ -75,7 +75,29 @@ func buildIOS(tmpDir, target string, bi *buildInfo) error {
 		if err := exeIOS(tmpDir, target, appDir, bi); err != nil {
 			return err
 		}
-		if err := signIOS(bi, tmpDir, appDir); err != nil {
+
+		embedded := filepath.Join(appDir, "embedded.mobileprovision")
+
+		var provisions []string
+		if bi.key == "" {
+			if ext := filepath.Ext(bi.key); ext != ".mobileprovision" && ext != ".provisionprofile" {
+				return fmt.Errorf("sign: -signkey specifies an Apple provisioning profile, but %q does not end in .mobileprovision or .provisionprofile", bi.key)
+			}
+			provisions = []string{bi.key}
+		} else {
+			home, err := os.UserHomeDir()
+			if err != nil {
+				return err
+			}
+
+			p, err := filepath.Glob(filepath.Join(home, "Library", "MobileDevice", "Provisioning Profiles", "*.mobileprovision"))
+			if err != nil {
+				return err
+			}
+			provisions = p
+		}
+
+		if err := signApple(bi.appID, tmpDir, embedded, appDir, provisions); err != nil {
 			return err
 		}
 		return zipDir(out, tmpDir, "Payload")
@@ -84,16 +106,8 @@ func buildIOS(tmpDir, target string, bi *buildInfo) error {
 	}
 }
 
-func signIOS(bi *buildInfo, tmpDir, app string) error {
-	home, err := os.UserHomeDir()
-	if err != nil {
-		return err
-	}
-	provPattern := filepath.Join(home, "Library", "MobileDevice", "Provisioning Profiles", "*.mobileprovision")
-	provisions, err := filepath.Glob(provPattern)
-	if err != nil {
-		return err
-	}
+// signApple is shared between iOS and macOS.
+func signApple(appID, tmpDir, embedded, app string, provisions []string) error {
 	provInfo := filepath.Join(tmpDir, "provision.plist")
 	var avail []string
 	for _, prov := range provisions {
@@ -117,17 +131,23 @@ func signIOS(bi *buildInfo, tmpDir, app string) error {
 		if err != nil {
 			return err
 		}
-		provAppID, err := runCmd(exec.Command("/usr/libexec/PlistBuddy", "-c", "Print:Entitlements:application-identifier", provInfo))
+
+		// iOS/macOS Catalyst
+		provAppIDSearchKey := "Print:Entitlements:application-identifier"
+		if filepath.Ext(prov) == ".provisionprofile" {
+			// macOS
+			provAppIDSearchKey = "Print:Entitlements:com.apple.application-identifier"
+		}
+		provAppID, err := runCmd(exec.Command("/usr/libexec/PlistBuddy", "-c", provAppIDSearchKey, provInfo))
 		if err != nil {
 			return err
 		}
-		expAppID := fmt.Sprintf("%s.%s", appIDPrefix, bi.appID)
+		expAppID := fmt.Sprintf("%s.%s", appIDPrefix, appID)
 		avail = append(avail, provAppID)
 		if expAppID != provAppID {
 			continue
 		}
 		// Copy provisioning file.
-		embedded := filepath.Join(app, "embedded.mobileprovision")
 		if err := copyFile(embedded, prov); err != nil {
 			return err
 		}
@@ -147,10 +167,18 @@ func signIOS(bi *buildInfo, tmpDir, app string) error {
 		}
 		identity := sha1.Sum(certDER)
 		idHex := hex.EncodeToString(identity[:])
-		_, err = runCmd(exec.Command("codesign", "-s", idHex, "-v", "--entitlements", entFile, app))
+		_, err = runCmd(exec.Command(
+			"codesign",
+			"--sign", idHex,
+			"--deep",
+			"--force",
+			"--options", "runtime",
+			"--entitlements",
+			entFile,
+			app))
 		return err
 	}
-	return fmt.Errorf("sign: no valid provisioning profile found for bundle id %q among %v", bi.appID, avail)
+	return fmt.Errorf("sign: no valid provisioning profile found for bundle id %q among %v", appID, avail)
 }
 
 func exeIOS(tmpDir, target, app string, bi *buildInfo) error {
diff --git a/gogio/macosbuild.go b/gogio/macosbuild.go
index b9b79dd..2413b9e 100644
--- a/gogio/macosbuild.go
+++ b/gogio/macosbuild.go
@@ -148,7 +148,7 @@ func (b *macBuilder) setInfo(buildInfo *buildInfo, name string) {
 	<key>NSHighResolutionCapable</key>
 	<true/>
 	<key>CFBundlePackageType</key>
-	<string>APPL</string>
+	<string>BNDL</string>
     {{if .Schemes}}
 	<key>CFBundleURLTypes</key>
 	<array>
@@ -232,6 +232,12 @@ func (b *macBuilder) signProgram(buildInfo *buildInfo, binDest string, name stri
 		return err
 	}
 
+	// If the key is a provisioning profile use the same signing process as iOS
+	if filepath.Ext(buildInfo.key) == ".provisionprofile" {
+		embedded := filepath.Join(binDest, "Contents", "embedded.provisionprofile")
+		return signApple(buildInfo.appID, b.TempDir, embedded, binDest, []string{buildInfo.key})
+	}
+
 	cmd := exec.Command(
 		"codesign",
 		"--deep",
diff --git a/gogio/main.go b/gogio/main.go
index fb730f2..8ef6f89 100644
--- a/gogio/main.go
+++ b/gogio/main.go
@@ -36,7 +36,7 @@ var (
 	extraLdflags  = flag.String("ldflags", "", "extra flags to the Go linker")
 	extraTags     = flag.String("tags", "", "extra tags to the Go tool")
 	iconPath      = flag.String("icon", "", "specify an icon for iOS and Android")
-	signKey       = flag.String("signkey", "", "specify the path of the keystore to be used to sign Android apk files.")
+	signKey       = flag.String("signkey", "", "specify the path of the keystore (Android) or provisioning profile (macOS or iOS) for signing")
 	signPass      = flag.String("signpass", "", "specify the password to decrypt the signkey.")
 	notaryID      = flag.String("notaryid", "", "specify the apple id to use for notarization.")
 	notaryPass    = flag.String("notarypass", "", "specify app-specific password of the Apple ID to be used for notarization.")