Updated on 2026-08-14

app/build.gradle.kts

@@ -8,6 +8,7 @@ plugins {
     alias(deps.plugins.google.services)
     alias(deps.plugins.hilt.android)
     alias(deps.plugins.firebase.crashlytics)
+    alias(deps.plugins.firebase.perf)
     id("configuration")
 }
 
@@ -212,7 +213,10 @@ dependencies {
     implementation(deps.firebase.analytics)
     implementation(deps.firebase.crashlytics)
     implementation(deps.firebase.messaging)
-
+    implementation(deps.firebase.perf) {
+        exclude(group = "com.google.firebase", module = "protolite-well-known-types")
+        exclude(group = "com.google.protobuf", module = "protobuf-javalite")
+    }
     /** Tangem libraries */
     implementation(deps.tangem.blockchain) {
         exclude(module = "joda-time")

build.gradle.kts

@@ -10,6 +10,7 @@ plugins {
     alias(deps.plugins.hilt.android) apply false
     alias(deps.plugins.google.services) apply false
     alias(deps.plugins.firebase.crashlytics) apply false
+    alias(deps.plugins.firebase.perf) apply false
     alias(deps.plugins.room) apply false
 }
 

features/wallet/impl/build.gradle.kts

@@ -40,6 +40,10 @@ dependencies {
     implementation(deps.tangem.card.core)
     implementation(deps.tangem.blockchain)
     implementation(deps.timber)
+    implementation(deps.firebase.perf) {
+        exclude(group = "com.google.firebase", module = "protolite-well-known-types")
+        exclude(group = "com.google.protobuf", module = "protobuf-javalite")
+    }
 
     /** DI */
     implementation(deps.hilt.android)

features/wallet/impl/src/main/java/com/tangem/feature/wallet/presentation/wallet/analytics/utils/TokenListAnalyticsSender.kt

@@ -1,6 +1,8 @@
 package com.tangem.feature.wallet.presentation.wallet.analytics.utils
 
 import arrow.core.getOrElse
+import com.google.firebase.perf.FirebasePerformance
+import com.google.firebase.perf.metrics.Trace
 import com.tangem.blockchain.common.Blockchain
 import com.tangem.blockchainsdk.utils.fromNetworkId
 import com.tangem.common.extensions.isZero
@@ -12,6 +14,7 @@ import com.tangem.domain.tokens.model.CryptoCurrencyStatus
 import com.tangem.domain.tokens.model.TokenList
 import com.tangem.domain.tokens.model.TotalFiatBalance
 import com.tangem.domain.wallets.models.UserWallet
+import com.tangem.domain.wallets.models.UserWalletId
 import com.tangem.feature.wallet.presentation.wallet.analytics.WalletScreenAnalyticsEvent.Basic
 import com.tangem.feature.wallet.presentation.wallet.analytics.WalletScreenAnalyticsEvent.MainScreen
 import com.tangem.feature.wallet.presentation.wallet.state.model.WalletState
@@ -31,11 +34,20 @@ internal class TokenListAnalyticsSender @Inject constructor(
 
     private val balanceWasSentMap = mutableMapOf<String, Boolean>()
     private val mutex = Mutex()
+    private val loadingTraces = mutableMapOf<UserWalletId, Trace>()
 
     suspend fun send(displayedUiState: WalletState?, userWallet: UserWallet, tokenList: TokenList) {
         if (screenLifecycleProvider.isBackgroundState.value) return
         if (displayedUiState == null || displayedUiState.pullToRefreshConfig.isRefreshing) return
-        if (tokenList.totalFiatBalance is TotalFiatBalance.Loading) return
+
+        if (tokenList.totalFiatBalance is TotalFiatBalance.Loading) {
+            startLoadingTraceIfNeeded(userWallet.walletId, tokenList)
+            return
+        }
+
+        if (isTerminalState(tokenList.totalFiatBalance)) {
+            stopLoadingTraceIfNeeded(userWallet.walletId, tokenList.totalFiatBalance)
+        }
 
         val currenciesStatuses = tokenList.flattenCurrencies()
 
@@ -45,6 +57,35 @@ internal class TokenListAnalyticsSender @Inject constructor(
         sendTokenBalancesIfNeeded(currenciesStatuses)
     }
 
+    private suspend fun startLoadingTraceIfNeeded(userWalletId: UserWalletId, tokenList: TokenList) {
+        mutex.withLock {
+            if (!loadingTraces.containsKey(userWalletId)) {
+                val trace = FirebasePerformance.getInstance().newTrace(BALANCE_LOADED_TRACE_NAME)
+                trace.start()
+                trace.putAttribute(TOKENS_COUNT, tokenList.flattenCurrencies().size.toString())
+                loadingTraces[userWalletId] = trace
+            }
+        }
+    }
+
+    private suspend fun stopLoadingTraceIfNeeded(userWalletId: UserWalletId, totalFiatBalance: TotalFiatBalance) {
+        mutex.withLock {
+            loadingTraces[userWalletId]?.apply {
+                when (totalFiatBalance) {
+                    is TotalFiatBalance.Loaded -> putAttribute(HAS_ERROR, "No")
+                    is TotalFiatBalance.Failed -> putAttribute(HAS_ERROR, "Yes")
+                    else -> { /* Intentionally do nothing */ }
+                }
+                stop()
+                loadingTraces.remove(userWalletId)
+            }
+        }
+    }
+
+    private fun isTerminalState(balance: TotalFiatBalance): Boolean {
+        return balance is TotalFiatBalance.Failed || balance is TotalFiatBalance.Loaded
+    }
+
     private fun sendBalanceLoadedEventIfNeeded(
         fiatBalance: TotalFiatBalance,
         currenciesStatuses: List<CryptoCurrencyStatus>,
@@ -179,4 +220,10 @@ internal class TokenListAnalyticsSender @Inject constructor(
             analyticsEventHandler.send(MainScreen.NetworksUnreachable(unreachableCurrencies))
         }
     }
+
+    companion object {
+        const val BALANCE_LOADED_TRACE_NAME = "Total_balance_loaded"
+        const val HAS_ERROR = "has_error"
+        const val TOKENS_COUNT = "tokens_count"
+    }
 }

gradle/dependencies.toml

@@ -7,6 +7,7 @@ androidGradlePlugin = "8.2.2"
 firebaseCrashlytics = "3.0.1"
 googleServices = "4.4.1"
 kotlin = "1.9.22"
+firebasePerf = "1.4.2"
 # endregion Classpath
 
 # region AndroidX
@@ -45,7 +46,7 @@ coil = "2.1.0"
 compose-shimmer = "1.0.3"
 coroutine = "1.7.2"
 desugarJdkLibs = "1.1.5"
-firebase = "33.1.0"
+firebase = "33.7.0"
 googleMaterialComponent = "1.6.1"
 googlePlayReview = "2.0.1"
 googlePlayReviewKtx = "2.0.1"
@@ -122,6 +123,7 @@ kotlin-serialization = { id = "org.jetbrains.kotlin.plugin.serialization", versi
 android-application = { id = "com.android.application", version.ref = "androidGradlePlugin" }
 android-library = { id = "com.android.library", version.ref = "androidGradlePlugin" }
 firebase-crashlytics = { id = "com.google.firebase.crashlytics", version.ref = "firebaseCrashlytics" }
+firebase-perf = { id = "com.google.firebase.firebase-perf", version.ref = "firebasePerf" }
 google-services = { id = "com.google.gms.google-services", version.ref = "googleServices" }
 hilt-android = { id = "com.google.dagger.hilt.android", version.ref = "hilt" }
 detekt = { id = "io.gitlab.arturbosch.detekt", version.ref = "detekt" }
@@ -182,6 +184,7 @@ firebase-bom = { module = "com.google.firebase:firebase-bom", version.ref = "fir
 firebase-analytics = { module = "com.google.firebase:firebase-analytics-ktx" }
 firebase-crashlytics = { module = "com.google.firebase:firebase-crashlytics-ktx" }
 firebase-messaging = { module = "com.google.firebase:firebase-messaging-ktx" }
+firebase-perf = { module = "com.google.firebase:firebase-perf" }
 # endregion Firebase
 
 # region Tangem