diff --git a/docs/douyin-ios-return-20260911.md b/docs/douyin-ios-return-20260911.md
new file mode 100644
index 0000000..f0b7973
--- /dev/null
+++ b/docs/douyin-ios-return-20260911.md
@@ -0,0 +1,26 @@
+# iOS 抖音支付回跳修复（2026-09-11）
+
+基于 `charles/frontend-app` 的 `dev_codex` / `355ad11`。用户已确认在实际 iPhone 上打开 `trustbridgeapp://` 可以唤起商城。
+
+## 发现与修改
+
+该基线已经在 manifest.json 和 info.plist 注册了 trustbridgeapp，但支付初始化又默认传入 `https://app.tbmall.xin/uni-universallinks/__UNI__4910728/`。项目所带 DypaySDK 的 DypayAPI.h 明确说明：有 Universal Link 时优先使用它，降级使用 Scheme。
+
+2026-09-11 10:48—10:49（北京时间）外网 GET 检查发现，该域名的 `/.well-known/apple-app-site-association` 和 `/apple-app-site-association` 都返回 HTTP 200、Content-Type text/html，正文是官网首页，不是 Apple 关联 JSON。默认回跳 URL 本身同样返回官网首页。缺少有效关联文件的链接不能作为已经验证可唤起 App 的 Universal Link；本次没有取得手机日志，不能把网络检查等同于具体真机失败路径的证明。
+
+- iOS 支付初始化固定使用宿主已注册且用户实测有效的 `trustbridgeapp`，不带 `://`。支付接口里的回跳 Scheme 和 Universal Link 不覆盖该值；支付单号、金额、签名参数保持原值。
+- 移除抖音支付入口对 Universal Link 的默认传入。Android 保留原有 Scheme 选择，Android 原生初始化仍只使用 appId。
+- iOS 桥接收到空 Universal Link 时，调用官方两参数 `register(withAppID:callbackScheme:)`。插件的显式非空 Universal Link 调用仍保留三参数 API，便于其他已验证宿主使用。
+- 插件升级至 0.2.2。已有 UTSiOSHookProxy 的 URL/Universal Link 回调接收、App.onShow 查单及服务端确认后跳转成功页继续沿用。不以 URL 回跳本身判断支付到账。
+
+本次不修改微信、支付宝的 Universal Link 配置、后端、SQL 或业务接口，也不部署 AASA 文件。
+
+## 验证与发布
+
+`node --test tests/douyin-integration.test.cjs tests/douyin-uts.test.cjs`（设置 HBUILDERX_HOME）53 项通过。新增测试验证 iOS 遇到错误 Scheme、带 `://` 的 Scheme 和两种 Universal Link 字段时仍注册正确宿主 Scheme，且签名参数不变、成功仍以服务端查单为准；Android 原有选择行为保留。
+
+UTS 测试将实际共享 UTS 转译为 JS 运行，不是原生 Swift 编译。当前 Windows 无 Xcode，完整 IPA 编译和真机回跳需要发布端验证。
+
+HBuilderX 5.24 `cli publish --platform APP --type appResource` 于 10:51:59 编译、导出成功，只有既有 CSS Autoprefixer 注释警告。资源导出成功不代表完整 IPA 原生构建通过。
+
+发布必须重新云打包并安装完整 IPA 或自定义基座；只有 WGT 无法更新本次 Swift 原生修改。安装后验收支付成功、取消、手动返回 App、杀进程恢复，以及确认到账后只跳转一次支付成功页。若仍不能从抖音返回，请保留该包的构建版本和真机 SDK 日志继续定位，不通过直接标记支付成功绕过查单。
diff --git a/tests/douyin-integration.test.cjs b/tests/douyin-integration.test.cjs
index 0a7504b..5872919 100644
--- a/tests/douyin-integration.test.cjs
+++ b/tests/douyin-integration.test.cjs
@@ -33,6 +33,7 @@ function uniMock() {
   const navigations = [];
   return { storage, messages, navigations, getStorageSync: k => storage.get(k), setStorageSync: (k,v) => storage.set(k,v),
     removeStorageSync: k => storage.delete(k), showToast: v => messages.push(v.title), $emit() {},
+    getSystemInfoSync: () => ({ platform: 'android' }),
     showModal: () => assert.fail('Douyin must not add payment confirmation modals'),
     showLoading() {}, hideLoading() {},
     navigateTo: options => { navigations.push(options.url); options.success?.(); },
@@ -53,6 +54,34 @@ async function payContext(overrides = {}, app = true) {
 }
 const successPage = '/pages/order_package/order_submit_ok/order_submit_ok';
 const failurePage = '/pages/order_package/order_submit_error/order_submit_error';
+
+test('iOS always registers the installed host Scheme without a Universal Link', async () => {
+  for (const overrides of [{}, { callbackScheme: 'wrong-app' }, { callbackScheme: 'trustbridgeapp://' },
+    { universalLink: 'https://app.tbmall.xin/uni-universallinks/__UNI__4910728/' },
+    { UniversalLinks: 'https://example.com/return/' }]) {
+    let registration;
+    let signedInfo;
+    const ctx = await payContext({
+      initDypay: options => { registration = options; return true; },
+      openDypay: (options, cb) => { signedInfo = options.payInfo; cb({ resultCode: '0' }); }
+    });
+    ctx.uni.getSystemInfoSync = () => ({ platform: 'ios' });
+    const current = { ...payment, douyin: { ...payment.douyin, ...overrides } };
+    const result = await ctx.appDypayFun(current);
+    assert.deepEqual({ ...registration }, { appId: 'app', callbackScheme: 'trustbridgeapp' });
+    assert.deepEqual(signedInfo, ctx.toSdkPayInfo(current));
+    assert.equal(result.state, 'paid');
+    assert.deepEqual(ctx.uni.navigations, [successPage]);
+  }
+});
+
+test('Android keeps its existing callback Scheme selection', async () => {
+  let registration;
+  const ctx = await payContext({ initDypay: options => { registration = options; return true; } });
+  await ctx.appDypayFun({ ...payment, douyin: { ...payment.douyin, callbackScheme: 'android-host' } });
+  assert.equal(registration.callbackScheme, 'android-host');
+  assert.equal(registration.appId, 'app');
+});
 test('SDK success is confirmed with server before showing success', async () => {
   let queries = 0;
   const ctx = await payContext({ request: async () => { queries++; return { bizcode:100, data:{state:2} }; } });
diff --git a/uni_modules/tb-douyin-pay/package.json b/uni_modules/tb-douyin-pay/package.json
index f83d5b0..e6149db 100644
--- a/uni_modules/tb-douyin-pay/package.json
+++ b/uni_modules/tb-douyin-pay/package.json
@@ -1,7 +1,7 @@
 {
   "id": "tb-douyin-pay",
   "displayName": "TB 抖音支付",
-  "version": "0.2.1",
+  "version": "0.2.2",
   "description": "独立实现的抖音支付官方 SDK UTS 桥接",
   "engines": { "HBuilderX": ">=4.36.0" },
   "uni_modules": {
diff --git a/uni_modules/tb-douyin-pay/utssdk/app-ios/TbDouyinPayNative.swift b/uni_modules/tb-douyin-pay/utssdk/app-ios/TbDouyinPayNative.swift
index 85c82d0..48c1e13 100644
--- a/uni_modules/tb-douyin-pay/utssdk/app-ios/TbDouyinPayNative.swift
+++ b/uni_modules/tb-douyin-pay/utssdk/app-ios/TbDouyinPayNative.swift
@@ -7,7 +7,13 @@ public class TbDouyinPayNative {
     private static var generation = UUID()
 
     public static func initialize(_ appId: String, _ scheme: String, _ link: String) {
-        DypayAPI.register(withAppID: appId, universalLink: link, callbackScheme: scheme)
+        if link.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty {
+            // Use the SDK's Scheme-only API instead of registering an empty
+            // Universal Link with the higher-priority Universal Link API.
+            DypayAPI.register(withAppID: appId, callbackScheme: scheme)
+        } else {
+            DypayAPI.register(withAppID: appId, universalLink: link, callbackScheme: scheme)
+        }
     }
 
     public static func available() -> Bool { DypayAPI.canOpenDypay() }
diff --git a/utils/douyin-pay.js b/utils/douyin-pay.js
index 0303399..9085bc5 100644
--- a/utils/douyin-pay.js
+++ b/utils/douyin-pay.js
@@ -119,9 +119,12 @@ async function executePayment(payment, key) {
   if (key !== accountKey()) return { state: 'pending' };
   const payInfo = toSdkPayInfo(payment);
   if (!canOpenDypay()) throw new Error('请先安装或升级抖音客户端');
-  const callbackScheme = payment.douyin?.callbackScheme || 'trustbridgeapp';
-  const universalLink = payment.douyin?.universalLink || payment.douyin?.UniversalLinks || 'https://app.tbmall.xin/uni-universallinks/__UNI__4910728/';
-  if (!initDypay({ appId: payInfo.appid, callbackScheme, universalLink })) {
+  // iOS must return to this installed host's registered Scheme. The previous
+  // default Universal Link serves HTML instead of an Apple association file;
+  // Dypay prioritizes that link over the working Scheme. Do not register it.
+  const isIOS = uni.getSystemInfoSync().platform === 'ios';
+  const callbackScheme = isIOS ? 'trustbridgeapp' : (payment.douyin?.callbackScheme || 'trustbridgeapp');
+  if (!initDypay({ appId: payInfo.appid, callbackScheme })) {
     throw new Error('支付初始化失败，请稍后重试');
   }
   // Persist before entering native code so a killed process remains recoverable.