# Cronometer

状态：active
Platform：android
Package：com.cronometer.android.gold
Version：4.55.1
Opportunity：2026-06-10-cronometer-calorie-counter

## 摘要

- 包类型：xapk，inner APK 数：20
- 引擎 / 框架：flutter
- SDK 线索：admob, firebase
- Endpoint candidates：2
- 结论口径：本报告只基于静态 ZIP / Manifest / 字符串证据；不代表真实运行路径已验证。

## 直接证据

- [high] Manifest package id is com.cronometer.android.gold（source: `AndroidManifest.xml`，status: `verified`）
- [high] Manifest declares 61 permissions（source: `AndroidManifest.xml`，status: `verified`）
- [high] Engine/framework markers: flutter（source: `APK file inventory`，status: `verified`）
- [high] Static strings include 2 endpoint candidates（source: `Text/string scan`，status: `verified`）
- [high] Package contains 10 native libraries（source: `APK file inventory`，status: `verified`）

## 推断

- [medium] SDK markers suggest: admob, firebase（source: `Manifest, filenames, and text strings`，status: `inferred`）

## 权限和组件

### 权限

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.ACTIVITY_RECOGNITION`
- `android.permission.BLUETOOTH`
- `android.permission.BLUETOOTH_ADMIN`
- `android.permission.BLUETOOTH_CONNECT`
- `android.permission.CAMERA`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.READ_EXTERNAL_STORAGE`
- `android.permission.READ_MEDIA_IMAGES`
- `android.permission.RECEIVE_BOOT_COMPLETED`
- `android.permission.RECORD_AUDIO`
- `android.permission.SCHEDULE_EXACT_ALARM`
- `android.permission.USE_EXACT_ALARM`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `android.permission.WRITE_EXTERNAL_STORAGE`
- `android.permission.health.PERMISSION_READ_HEALTH_DATA_HISTORY`
- `android.permission.health.READ_ACTIVE_CALORIES_BURNED`
- `android.permission.health.READ_BLOOD_GLUCOSE`
- `android.permission.health.READ_BLOOD_PRESSURE`
- `android.permission.health.READ_BODY_FAT`
- `android.permission.health.READ_BODY_TEMPERATURE`
- `android.permission.health.READ_BODY_WATER_MASS`
- `android.permission.health.READ_DISTANCE`
- `android.permission.health.READ_EXERCISE`
- `android.permission.health.READ_HEART_RATE`
- `android.permission.health.READ_HEART_RATE_VARIABILITY`
- `android.permission.health.READ_HEIGHT`
- `android.permission.health.READ_HYDRATION`
- `android.permission.health.READ_NUTRITION`
- `android.permission.health.READ_OXYGEN_SATURATION`
- `android.permission.health.READ_RESPIRATORY_RATE`
- `android.permission.health.READ_RESTING_HEART_RATE`
- `android.permission.health.READ_SLEEP`
- `android.permission.health.READ_STEPS`

### 组件

- Activities：androidx.glance.appwidget.action.ActionTrampolineActivity, androidx.glance.appwidget.action.InvisibleActionTrampolineActivity, com.android.billingclient.api.ProxyBillingActivity, com.android.billingclient.api.ProxyBillingActivityV2, com.apptreesoftware.barcodescan.BarcodeScannerActivity, com.braze.push.NotificationTrampolineActivity, com.braze.ui.BrazeWebViewActivity, com.braze.ui.activities.ContentCardsActivity, com.cronometer.cronometer.AndroidURationaleActivity, com.cronometer.cronometer.MainActivity, com.cronometer.cronometer.PermissionsRationaleActivity, com.facebook.CustomTabActivity, com.facebook.CustomTabMainActivity, com.facebook.FacebookActivity, com.google.android.gms.ads.AdActivity, com.google.android.gms.ads.NotificationHandlerActivity, com.google.android.gms.ads.OutOfContextTestingActivity, com.google.android.gms.auth.api.signin.internal.SignInHubActivity, com.google.android.gms.common.api.GoogleApiActivity, com.google.android.play.core.common.PlayCoreDialogWrapperActivity, io.flutter.plugins.urllauncher.WebViewActivity
- Services：androidx.camera.core.impl.MetadataHolderService, androidx.core.widget.RemoteViewsCompatService, androidx.glance.appwidget.GlanceRemoteViewsService, androidx.health.platform.client.impl.sdkservice.HealthDataSdkService, androidx.room.MultiInstanceInvalidationService, androidx.work.impl.background.systemjob.SystemJobService, androidx.work.impl.foreground.SystemForegroundService, com.braze.push.BrazeFirebaseMessagingService, com.cronometer.cronometer.watchapp.api.DataLayerListenerService, com.google.android.datatransport.runtime.backends.TransportBackendDiscovery, com.google.android.datatransport.runtime.scheduling.jobscheduling.JobInfoSchedulerService, com.google.android.gms.ads.AdService, com.google.android.gms.auth.api.signin.RevocationBoundService, com.google.android.gms.measurement.AppMeasurementJobService, com.google.android.gms.measurement.AppMeasurementService, com.google.android.gms.metadata.ModuleDependencies, com.google.firebase.components.ComponentDiscoveryService, com.google.firebase.messaging.FirebaseMessagingService, com.google.firebase.sessions.SessionLifecycleService, com.google.mlkit.common.internal.MlKitComponentDiscoveryService, io.flutter.plugins.firebase.messaging.FlutterFirebaseMessagingBackgroundService, io.flutter.plugins.firebase.messaging.FlutterFirebaseMessagingService
- Receivers：androidx.glance.appwidget.MyPackageReplacedReceiver, androidx.glance.appwidget.UnmanagedSessionReceiver, androidx.glance.appwidget.action.ActionCallbackBroadcastReceiver, androidx.profileinstaller.ProfileInstallReceiver, androidx.work.impl.background.systemalarm.RescheduleReceiver, androidx.work.impl.diagnostics.DiagnosticsReceiver, androidx.work.impl.utils.ForceStopRunnable$BroadcastReceiver, com.adjust.sdk.AdjustReferrerReceiver, com.braze.BrazeFlushPushDeliveryReceiver, com.braze.push.BrazePushReceiver, com.cronometer.android.gold.ConsumedGlanceWidgetReceiverLarge, com.cronometer.android.gold.ConsumedGlanceWidgetReceiverMedium, com.cronometer.android.gold.ConsumedGlanceWidgetReceiverSmall, com.cronometer.android.gold.FastingGlanceWidgetReceiverLarge, com.cronometer.android.gold.FastingGlanceWidgetReceiverMedium, com.cronometer.android.gold.FastingGlanceWidgetReceiverSmall, com.cronometer.android.gold.RemainingGlanceWidgetReceiverLarge, com.cronometer.android.gold.RemainingGlanceWidgetReceiverMedium, com.cronometer.android.gold.RemainingGlanceWidgetReceiverSmall, com.dexterous.flutterlocalnotifications.ScheduledNotificationBootReceiver, com.dexterous.flutterlocalnotifications.ScheduledNotificationReceiver, com.facebook.AuthenticationTokenManager$CurrentAuthenticationTokenChangedBroadcastReceiver, com.facebook.CurrentAccessTokenExpirationBroadcastReceiver, com.google.android.datatransport.runtime.scheduling.jobscheduling.AlarmManagerSchedulerBroadcastReceiver, com.google.android.gms.measurement.AppMeasurementReceiver, com.google.firebase.iid.FirebaseInstanceIdReceiver, dev.fluttercommunity.plus.share.SharePlusPendingIntent, io.flutter.plugins.firebase.messaging.FlutterFirebaseMessagingReceiver
- Providers：androidx.core.content.FileProvider, androidx.startup.InitializationProvider, com.adjust.sdk.SystemLifecycleContentProvider, com.facebook.FacebookContentProvider, com.facebook.internal.FacebookInitProvider, com.google.android.gms.ads.MobileAdsInitProvider, com.google.firebase.provider.FirebaseInitProvider, com.google.mlkit.common.internal.MlKitInitProvider, dev.fluttercommunity.plus.share.ShareFileProvider, io.flutter.plugins.firebase.messaging.FlutterFirebaseMessagingInitProvider, io.flutter.plugins.imagepicker.ImagePickerFileProvider

## SDK / Endpoint

### SDK

- `admob`
- `firebase`

### Endpoint candidates

- http://www.apache.org/licenses/
- http://www.apache.org/licenses/LICENSE-2.0

## Warnings

- apktool manifest decode skipped 19 split APK(s)
- binary AndroidManifest.xml decoded with apktool

## 下一步

- 真机/模拟器验证 onboarding、paywall、首个可感知价值和崩溃路径。
- 把 endpoint candidates 与 HAR / MITM / Frida 动态证据对齐，避免只凭静态字符串下结论。
- 多版本对比权限、SDK、endpoint、native libs 和资源路径变化。
- 订阅/广告 SDK 线索存在，后续需拆 paywall、free trial、退款和广告频率。