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Back to Google Calendar

Tech StackTDN

Google Calendar Tech Stack

Languages, frameworks, and third-party SDKs detected inside Google Calendar — extracted from the Google Play build.

Store ProfileVersion HistoryCountry RankingsTDN InsightsTDNBuild Stack
v2026.21.0-924344952-release · latestNo declared tracking

Stack profile

C/C++ (native) · Java · Kotlin · 19 third-party SDKs across 8 categories · notable detections include Firebase, Google, Lottie

Analysis

Analyzed
June 5, 2026
Bundle ID
com.google.android.calendar
Detection floor
Observed

Languages

3

C/C++ (native) · Java · Kotlin

Third-party SDKs

19

8 categories

Permissions

28

2 native libs

Signals

39

capabilities, APIs, fonts

Build

Build & platform

Android SDK levels, supported ABIs, and signing scheme detected from the APK.

Min SDK

26

Target SDK

37

ABIs

1

arm64-v8a

Signing

v2 · v3

Common Name: Android

Manifest

App components

Activities, services, broadcast receivers, and content providers declared in the manifest.

Activities

39

Services

20

Receivers

29

Providers

6

Exported (32)

activity-alias:com.android.calendar.AllInOneActivityactivity-alias:com.android.calendar.LaunchActivityactivity-alias:com.google.android.calendar.ICalLauncheractivity-alias:com.google.android.calendar.timely.settings.CalendarPublicPreferenceActivityactivity:com.android.calendar.event.LaunchInfoActivityactivity:com.google.android.calendar.feedback.privacypolicy.PrivacyPolicyActivityactivity:com.google.android.libraries.social.licenses.LicenseMenuActivityactivity:com.google.apps.security.cse.xplat.identity.oidc.appauth.android.CseRedirectUriReceiverActivityreceiver:androidx.work.impl.diagnostics.DiagnosticsReceiverreceiver:com.android.calendar.widget.CalendarAppWidgetProviderreceiver:com.google.android.apps.calendar.appsearch.impl.AppSearchBroadcastReceiverreceiver:com.google.android.apps.calendar.appsearch.impl.metrics.RemoteMetricsBroadcastReceiver

Manifest

Permissions

28 permissions requested in the manifest.
android.permission.ACCESS_COARSE_LOCATIONandroid.permission.ACCESS_NETWORK_STATEandroid.permission.FOREGROUND_SERVICEandroid.permission.GET_PACKAGE_SIZEandroid.permission.INTERACT_ACROSS_PROFILESandroid.permission.INTERNETandroid.permission.POST_NOTIFICATIONSandroid.permission.READ_CALENDARandroid.permission.READ_CONTACTSandroid.permission.READ_SYNC_SETTINGSandroid.permission.READ_SYNC_STATSandroid.permission.RECEIVE_BOOT_COMPLETEDandroid.permission.SCHEDULE_EXACT_ALARMandroid.permission.SUBSCRIBED_FEEDS_READandroid.permission.SUBSCRIBED_FEEDS_WRITEandroid.permission.USE_CREDENTIALSandroid.permission.USE_EXACT_ALARMandroid.permission.VIBRATEandroid.permission.WAKE_LOCKandroid.permission.WRITE_CALENDAR

Native

Native libraries

Bundled native (.so) libraries — NDK code and cross-platform runtimes.
libandroidx.graphics.path.solibnative_crash_handler_jni.so

API

API surface

Endpoints, base URLs, and URI schemes recovered from the DEX string pool.

Base URLs

http://calendar.google.com/http://google.com/https://%s/%s/%shttps://([a-zA-Z]*https://accounts.google.com/AccountChooserhttps://accounts.google.com/AccountChooser?continue=%s&faa=1&Email=%shttps://autopush-notifications-pa.sandbox.googleapis.com:443https://autopush-qual-playground-notifications-pa.sandbox.googleapis.com:443https://calendar.google.com/https://calendar.google.com/?ocb=1https://calendar.google.com/calendar/eventhttps://calendar.google.com/calendar/event?eid=%s

API endpoints

/account/account_removal_result/account/username_change_result/api/client/googleapis/google-api-client.properties/api/client/http/google-http-client.properties/api/event/V2AClientEventChangeAdapter/api/event/V2AEventAdapter/api/event/V2AEventKey/api/place/autocomplete/json/api/place/details/json/api/place/photo/api/staticmap/auth/admin.directory.resource.calendar.readonly/auth/calendar/auth/calendar.readonly/auth/chat.spaces.readonly/auth/drive/auth/drive.metadata.readonly/auth/get_spatula_header_result/auth/notifications/auth/peopleapi.readonly

URI schemes

android-appandroid-keystoreandroid.resourceintentmarketrtspwidget

Signals

Capability & security signals

Behaviors inferred from DEX type descriptors — WebView bridges, dynamic code loading, reflection, crypto, keystore, and more.
Android KeystoreClassLoader usePlay Core (in-app updates / dynamic features)Process exec (Runtime)ReflectionSymmetric crypto (javax.crypto)Telephony / device infoWebView

Security

Potential secrets detected

String patterns matching credentials/keys found by static scanning. Counts only — values are never published.
google api key: 4

Build

Build & platform

Compiler, target OS, supported device families, and localization footprint detected from the bundle.

Devices

Android

Runtime

Languages & runtimes

Primary runtimes and language signatures observed in the app binary.
CC/C++ (native)36JJava36KKotlin36

Dependencies

Third-party SDKs

Grouped by purpose. Select any SDK to see other tracked apps that use it.
19 of 19 SDKs shown

Authentication

2
AAppAuth20Google Sign-In / Auth35

Networking

4
CCronet24CCronet (Google)20OOkHttp21VVolley2

Maps

1
Google Location20

Reactive / Async

1
KKotlin Coroutines35

Storage

2
DDataStore14RRoom33

Firebase

2
Firebase49Google Play services35

Rendering

4
GGlide28JJetpack Compose29Lottie62MMaterial Components34

Other

3
DDagger14GGson21PProtobuf35

Interface

UI & graphics

Frameworks and libraries Google Calendar uses to render its interface and animations.
GlideJetpack ComposeLottieMaterial Components

Assets

Bundled fonts

Custom font families packaged in the app bundle.
GoogleSans-Regular.nohintsGoogleSansText-MediumGoogleSansText-RegularProductSans-Regular

Packaging

Build & packaging

Dependency managers and build tooling detected in the app bundle.
Gradle (inferred)

Integrations

Services & integrations

Service configuration, URL schemes, universal links, and integration keys observed in the sanitized audit.

Registered URL schemes

contentfilehttphttpswidget

Queries other apps

com.android.contactscom.android.vendingcom.google.android.apps.chromecom.google.android.apps.docscom.google.android.apps.docs.editors.docscom.google.android.apps.docs.editors.drawingscom.google.android.apps.docs.editors.sheetscom.google.android.apps.docs.editors.slidescom.google.android.apps.dynamitecom.google.android.apps.meetingscom.google.android.apps.tachyoncom.google.android.apps.taskscom.google.android.appsearchcom.google.android.calendarcom.google.android.gmcom.google.android.gm.exchangecom.google.android.gm.litecom.google.android.gmscom.google.android.keepcom.google.android.syncadapters.calendarcom.google.corp.bizapps.rews.campus.androidintent:httpsintent:mailto

Universal link hosts

calendar.google.comclient-side-encryption.google.comcom.android.calendarkrahsc.google.comwww.google.com

Network

Backend & API

Backend hosts, GraphQL operations, and certificate pinning signals surfaced by static analysis.

Backend hosts

com.android.calendardrive-thirdparty.googleusercontent.comfonts.gstatic.comgithub.comgoo.glelh3.googleusercontent.comns.adobe.comssl.gstatic.comwww.ccil.orgwww.gstatic.comxml.org

First party

App modules

Likely first-party modules and resource bundles detected in Google Calendar.
com.googlecom.google.android

Entitlements

Capabilities

System capabilities and entitlement flags included with the app.
Approximate locationCalendar (read)Calendar (write)Contacts (read)Foreground serviceNotifications

APIs

Detected API usage

System frameworks and privacy-sensitive APIs referenced by the binary.
Android KeystoreClassLoader usePlay Core (in-app updates / dynamic features)Process exec (Runtime)ReflectionSymmetric crypto (javax.crypto)Telephony / device infoWebView

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