24symbols – online books
300.4K installs
2K ratings
1.5K monthly active users
$<10K monthly revenue est.
IAP 26% · Ad 74%
Install Trends
Weekly +13
SteadyMonthly +49
SteadySDKs, Trackers & Permissions for 24symbols – online books
SDK Scan Status
Last Successful SDK Scan: 2026-04-03
Lastest Attempt: 2026-04-03
Last Attempt Status: Success
| SDKs Last Scanned | Version | Scan Result | First Downloaded |
|---|---|---|---|
| April 3, 2026 at 13:36:18 | 102 | Success | June 30, 2025 at 14:15:33 |
Ad Networks
- application/activity:com.facebook.CustomTabActivity
- application/activity:com.facebook.CustomTabMainActivity
- application/activity:com.facebook.FacebookActivity
- application/activity:com.facebook.ads.AudienceNetworkActivity
- application/activity:com.facebook.ads.InterstitialAdActivity
- application/meta-data:com.facebook.sdk.ApplicationId
- application/provider:com.facebook.internal.FacebookInitProvider
- smali:com.facebook.ads
- smali:com.facebook.ads.a
- smali:com.facebook.ads.internal
- smali:com.facebook.ads.internal.a
- smali:com.facebook.ads.internal.adapters
- smali:com.facebook.ads.internal.b
- smali:com.facebook.ads.internal.c
- smali:com.facebook.ads.internal.d
- smali:com.facebook.ads.internal.e
- smali:com.facebook.ads.internal.f
- smali:com.facebook.ads.internal.g
- smali:com.facebook.ads.internal.h
- smali:com.facebook.ads.internal.i
- smali:com.facebook.ads.internal.i.a
- smali:com.facebook.ads.internal.i.b
- smali:com.facebook.ads.internal.i.b.a
- smali:com.facebook.ads.internal.j
- smali:com.facebook.ads.internal.server
- smali:com.facebook.ads.internal.util
- smali:com.facebook.ads.internal.view
- smali:com.facebook.ads.internal.view.a
- smali:com.facebook.ads.internal.view.b
- smali:com.facebook.ads.internal.view.c
- smali:com.facebook.ads.internal.view.d
- smali:com.facebook.ads.internal.view.d.a
- smali:com.facebook.ads.internal.view.d.b
- smali:com.facebook.ads.internal.view.d.c
- smali:com.facebook.ads.internal.view.hscroll
- smali:com.facebook.appevents
- smali:com.facebook.appevents.aam
- smali:com.facebook.appevents.codeless
- smali:com.facebook.appevents.codeless.internal
- smali:com.facebook.appevents.eventdeactivation
- smali:com.facebook.appevents.iap
- smali:com.facebook.appevents.integrity
- smali:com.facebook.appevents.internal
- smali:com.facebook.appevents.ml
- smali:com.facebook.appevents.ondeviceprocessing
- smali:com.facebook.appevents.restrictivedatafilter
- smali:com.facebook.appevents.suggestedevents
- application/activity:com.google.android.gms.ads.AdActivity
- application/activity:com.google.android.gms.ads.purchase.InAppPurchaseActivity
- smali:com.google.ads
- smali:com.google.ads.mediation
- smali:com.google.ads.mediation.admob
- smali:com.google.ads.mediation.customevent
- smali:com.google.android.gms.ads
- smali:com.google.android.gms.ads.doubleclick
- smali:com.google.android.gms.ads.formats
- smali:com.google.android.gms.ads.identifier
- smali:com.google.android.gms.ads.impl
- smali:com.google.android.gms.ads.internal
- smali:com.google.android.gms.ads.internal.overlay
- smali:com.google.android.gms.ads.internal.purchase
- smali:com.google.android.gms.ads.mediation
- smali:com.google.android.gms.ads.mediation.admob
- smali:com.google.android.gms.ads.mediation.customevent
- smali:com.google.android.gms.ads.purchase
- smali:com.google.android.gms.ads.reward
- smali:com.google.android.gms.ads.reward.mediation
- smali:com.google.android.gms.ads.search
- smali:com.google.android.gms.ads_identifier
- smali:com.smartadserver
- smali:com.smartadserver.android
- smali:com.smartadserver.android.library
- smali:com.smartadserver.android.library.controller
- smali:com.smartadserver.android.library.controller.mraid
- smali:com.smartadserver.android.library.controller.mraid.listener
- smali:com.smartadserver.android.library.exception
- smali:com.smartadserver.android.library.http
- smali:com.smartadserver.android.library.json
- smali:com.smartadserver.android.library.model
- smali:com.smartadserver.android.library.offline
- smali:com.smartadserver.android.library.provider
- smali:com.smartadserver.android.library.provider.http
- smali:com.smartadserver.android.library.res
- smali:com.smartadserver.android.library.ui
- smali:com.smartadserver.android.library.util
Analytics: Product
- application/receiver:com.google.android.gms.analytics.AnalyticsReceiver
- application/service:com.google.android.gms.analytics.AnalyticsJobService
- application/service:com.google.android.gms.analytics.AnalyticsService
- smali:com.google.android.gms.analytics
- smali:com.google.android.gms.analytics.ecommerce
- smali:com.google.android.gms.analyticsservices
- smali:com.google.android.gms.analyticsservices_app_library
- application/activity:com.google.firebase.auth.internal.FederatedSignInActivity
- application/meta-data:com.google.firebase.messaging.default_notification_color
- application/meta-data:com.google.firebase.messaging.default_notification_icon
- application/provider:com.google.firebase.provider.FirebaseInitProvider
- application/receiver:com.google.firebase.iid.FirebaseInstanceIdReceiver
- application/service:com.google.firebase.components.ComponentDiscoveryService
- application/service:com.google.firebase.messaging.FirebaseMessagingService
- application/service/intent-filter/action:com.google.firebase.INSTANCE_ID_EVENT
- application/service/intent-filter/action:com.google.firebase.MESSAGING_EVENT
- application/service/meta-data:com.google.firebase.components:com.google.firebase.analytics.connector.internal.AnalyticsConnectorRegistrar
- application/service/meta-data:com.google.firebase.components:com.google.firebase.auth.FirebaseAuthRegistrar
- application/service/meta-data:com.google.firebase.components:com.google.firebase.crashlytics.CrashlyticsRegistrar
- application/service/meta-data:com.google.firebase.components:com.google.firebase.datatransport.TransportRegistrar
- application/service/meta-data:com.google.firebase.components:com.google.firebase.iid.Registrar
- application/service/meta-data:com.google.firebase.components:com.google.firebase.installations.FirebaseInstallationsRegistrar
- application/service/meta-data:com.google.firebase.components:com.google.firebase.messaging.FirebaseMessagingRegistrar
- smali:com.google.firebase
- smali:com.google.firebase.analytics
- smali:com.google.firebase.analytics.connector
- smali:com.google.firebase.analytics.connector.internal
- smali:com.google.firebase.annotations
- smali:com.google.firebase.auth
- smali:com.google.firebase.auth.api
- smali:com.google.firebase.auth.api.internal
- smali:com.google.firebase.auth.internal
- smali:com.google.firebase.components
- smali:com.google.firebase.crashlytics
- smali:com.google.firebase.crashlytics.internal
- smali:com.google.firebase.crashlytics.internal.analytics
- smali:com.google.firebase.crashlytics.internal.breadcrumbs
- smali:com.google.firebase.crashlytics.internal.common
- smali:com.google.firebase.crashlytics.internal.log
- smali:com.google.firebase.crashlytics.internal.model
- smali:com.google.firebase.crashlytics.internal.model.serialization
- smali:com.google.firebase.crashlytics.internal.ndk
- smali:com.google.firebase.crashlytics.internal.network
- smali:com.google.firebase.crashlytics.internal.persistence
- smali:com.google.firebase.crashlytics.internal.proto
- smali:com.google.firebase.crashlytics.internal.report
- smali:com.google.firebase.crashlytics.internal.report.model
- smali:com.google.firebase.crashlytics.internal.report.network
- smali:com.google.firebase.crashlytics.internal.send
- smali:com.google.firebase.crashlytics.internal.settings
- smali:com.google.firebase.crashlytics.internal.settings.model
- smali:com.google.firebase.crashlytics.internal.settings.network
- smali:com.google.firebase.crashlytics.internal.stacktrace
- smali:com.google.firebase.crashlytics.internal.unity
- smali:com.google.firebase.datatransport
- smali:com.google.firebase.emulators
- smali:com.google.firebase.encoders
- smali:com.google.firebase.encoders.annotations
- smali:com.google.firebase.encoders.config
- smali:com.google.firebase.encoders.json
- smali:com.google.firebase.events
- smali:com.google.firebase.firebase_analytics
- smali:com.google.firebase.firebase_core
- smali:com.google.firebase.heartbeatinfo
- smali:com.google.firebase.iid
- smali:com.google.firebase.iid.internal
- smali:com.google.firebase.inject
- smali:com.google.firebase.installations
- smali:com.google.firebase.installations.interop
- smali:com.google.firebase.installations.local
- smali:com.google.firebase.installations.remote
- smali:com.google.firebase.internal
- smali:com.google.firebase.internal.api
- smali:com.google.firebase.measurement
- smali:com.google.firebase.measurement_impl
- smali:com.google.firebase.messaging
- smali:com.google.firebase.platforminfo
- smali:com.google.firebase.provider
Development Tools
- application/meta-data:com.google.android.gms.version
- application/receiver:com.google.android.gms.measurement.AppMeasurementReceiver
- application/service:com.google.android.gms.measurement.AppMeasurementJobService
- application/service:com.google.android.gms.measurement.AppMeasurementService
- smali:com.google.android.gms.measurement
- smali:com.google.android.gms.measurement.api
- smali:com.google.android.gms.measurement.internal
- smali:com.google.android.gms.measurement.module
- smali:com.google.android.gms.measurement.sdk
- smali:com.google.android.gms.measurement.sdk.api
- smali:com.google.android.gms.measurement_base
- smali:org.intellij
- smali:org.intellij.lang
- smali:org.intellij.lang.annotations
- smali:kotlin.collections
- smali:kotlin.collections.builders
- smali:kotlin.collections.jdk8
- smali:kotlin.collections.unsigned
- smali:kotlin.io
- smali:kotlin.io.path
- smali:kotlin.jvm
- smali:kotlin.jvm.functions
- smali:kotlin.jvm.internal
- smali:kotlin.jvm.internal.markers
- smali:kotlin.jvm.internal.unsafe
- smali:kotlin.properties
- smali:kotlin.reflect
- smali:kotlin.text
- smali:kotlin.text.jdk8
- smali:kotlinx
- smali:kotlinx.android
- smali:kotlinx.android.extensions
- smali:kotlinx.android.parcel
- smali:kotlinx.coroutines
- smali:kotlinx.coroutines.android
- smali:kotlinx.coroutines.channels
- smali:kotlinx.coroutines.debug
- smali:kotlinx.coroutines.debug.internal
- smali:kotlinx.coroutines.flow
- smali:kotlinx.coroutines.flow.internal
- smali:kotlinx.coroutines.internal
- smali:kotlinx.coroutines.intrinsics
- smali:kotlinx.coroutines.scheduling
- smali:kotlinx.coroutines.selects
- smali:kotlinx.coroutines.sync
- smali:kotlinx.coroutines.test
- smali:com.squareup.picasso
- smali:okhttp3
- smali:okhttp3.internal
- smali:okhttp3.internal.annotations
- smali:okhttp3.internal.cache
- smali:okhttp3.internal.cache2
- smali:okhttp3.internal.connection
- smali:okhttp3.internal.http
- smali:okhttp3.internal.http1
- smali:okhttp3.internal.http2
- smali:okhttp3.internal.io
- smali:okhttp3.internal.platform
- smali:okhttp3.internal.proxy
- smali:okhttp3.internal.publicsuffix
- smali:okhttp3.internal.tls
- smali:okhttp3.internal.ws
- smali:okhttp3.logging
Mediation
Unknown SDKs and Services
If you recognize any of these please reach out to have it added.
- application/service/meta-data:backend:com.google.android.datatransport.cct.CctBackendFactory
- smali:bolts
- application/provider:com.facebook.FacebookContentProvider
- application/receiver:com.facebook.CurrentAccessTokenExpirationBroadcastReceiver
- application/receiver/intent-filter/action:com.facebook.sdk.ACTION_CURRENT_ACCESS_TOKEN_CHANGED
- smali:com.facebook.all
- smali:com.facebook.applinks
- smali:com.facebook.bolts
- smali:com.facebook.common
- smali:com.facebook.core
- smali:com.facebook.internal
- smali:com.facebook.login
- smali:com.facebook.messenger
- smali:com.facebook.ppml
- smali:com.facebook.referrals
- smali:com.facebook.share
- smali:com.facebook.share.model
- smali:com.findaway
- smali:com.findaway.audioengine
- application/service:com.firebase.jobdispatcher.GooglePlayReceiver
- application/service/intent-filter/action:com.firebase.jobdispatcher.ACTION_EXECUTE
- smali:com.firebase
- application/activity:com.google.android.gms.auth.api.signin.internal.SignInHubActivity
- application/activity:com.google.android.gms.common.api.GoogleApiActivity
- application/meta-data:com.google.android.play.billingclient.version
- application/receiver:com.google.android.datatransport.runtime.scheduling.jobscheduling.AlarmManagerSchedulerBroadcastReceiver
- application/receiver/intent-filter/action:com.google.android.c2dm.intent.RECEIVE
- application/service:com.google.android.datatransport.runtime.backends.TransportBackendDiscovery
- application/service:com.google.android.datatransport.runtime.scheduling.jobscheduling.JobInfoSchedulerService
- application/service:com.google.android.gms.auth.api.signin.RevocationBoundService
- application/service/intent-filter/action:com.google.android.gms.gcm.ACTION_TASK_READY
- smali:com.google.android
- smali:com.google.android.gms
- smali:com.google.gson
- smali:com.google.gson.internal
- smali:com.google.gson.reflect
- smali:com.google.gson.stream
- smali:com.google.zxing
- smali:com.google.zxing.aztec
- smali:com.google.zxing.client
- smali:com.google.zxing.common
- smali:com.google.zxing.multi
- smali:com.google.zxing.oned
- smali:com.google.zxing.pdf417
- smali:com.google.zxing.qrcode
- application/service:com.jcmore2.freeview.FreeViewService
- smali:com.jcmore2
- smali:com.jcmore2.bannertime
- smali:com.jcmore2.elapsedtime
- smali:com.jcmore2.freeview
- smali:com.nostra13
- smali:com.squareup.assertj
- smali:com.squareup.okhttp
- smali:com.symbols
- smali:com.symbols.apiclient
- smali:dagger
- smali:dagger.internal
- smali:dagger.multibindings
- smali:javax
- smali:javax.inject
- smali:org.assertj
- smali:org.assertj.android
- smali:org.assertj.android.api
- smali:org.assertj.core
- smali:org.assertj.core.api
- smali:org.assertj.core.data
- smali:org.assertj.core.error
- smali:org.assertj.core.groups
- smali:org.assertj.core.util
- smali:retrofit
- smali:retrofit.android
- smali:retrofit.appengine
- smali:retrofit.client
- smali:retrofit.converter
- smali:retrofit.http
- smali:retrofit.mime
- smali:retrofit2
- smali:retrofit2.converter
- smali:retrofit2.converter.gson
- smali:retrofit2.http
Permissions
ACCESS_NETWORK_STATE
ACCESS_WIFI_STATE
BROADCAST_STICKY
FOREGROUND_SERVICE
GET_ACCOUNTS
INTERNET
NETWORK
READ_EXTERNAL_STORAGE
READ_PHONE_STATE
RECEIVE_BOOT_COMPLETED
STORAGE
SYSTEM_ALERT_WINDOW
USE_CREDENTIALS
VIBRATE
WAKE_LOCK
WRITE_EXTERNAL_STORAGE
WRITE_INTERNAL_STORAGE
com.android.vending.BILLING
com.google.android.c2dm.permission.RECEIVE
com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
com.symbols24.androidapp.permission.C2D_MESSAGE