YallaChat: Voice&Video Calls

Yalla Technology FZ-LLC · Build 1.13.3

com.yallatech.yallachat
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Rescanning re-reads this build; it does not re-check any backend referenced inside it.

Static analysis completeScanned 2026-11-10 07:56 UTC

Static checks identify review items, not a guarantee of safety.

Backend checks: 4 unauthenticated read checks against backends referenced in this build — 4 refused access. Each check describes one request at the recorded scan time and does not establish the backend's current state.

Overview

Analysis recorded

6 finding categories to review

YallaChat: Voice&Video Calls (com.yallatech.yallachat) scored grade C, 84 out of 100, in a static scan of version 1.13.3 on 2026-11-10. It has no high or critical findings, and 6 lower-severity finding categories across 8 occurrences. 8 tracking SDKs are present in the package, which describes what ships, not what runs or what it sends. This is static analysis of a single build: it does not observe the app running and does not establish that any data is exposed.

Finding categories68 occurrences
High / critical0Category count
Tracking SDKs8Presence, not observed traffic
Assessment score84 / 100Grade C

Start with these findings

mediumCleartext (HTTP) traffic permitted1 occurrence

Interpretation & review guidance

The manifest permits cleartext (HTTP) traffic. Data sent over plain HTTP can be read or tampered with on the network; modern apps should require HTTPS.

Remediation: How to fix cleartext (HTTP) traffic in an Android app →

Reference: CWE-319 · MASVS-NETWORK-1 — what the control asks for, and other apps with the same finding.

Evidence
1 recorded occurrence in the analyzed APK. These are distinct stored findings, not a count of every source match.
Verification
Static detection; current reachability is not established.
Open in all findingsRequest a correction
mediumExported content provider without permission1 occurrence

Interpretation & review guidance

An exported content provider declares no permission. Other apps on the device may reach it — verify it enforces access control internally; this flags the attack surface, not a confirmed leak.

Remediation: How to fix exported Android components →

Reference: CWE-926 · CWE-284 · MASVS-PLATFORM-1 — what the control asks for, and other apps with the same finding.

Evidence
1 recorded occurrence in the analyzed APK. These are distinct stored findings, not a count of every source match.
Verification
Static detection; current reachability is not established.
Open in all findingsRequest a correction
lowAmazon S3 bucket reference2 occurrences

Interpretation & review guidance

A reference to an Amazon S3 bucket. Using cloud storage is normal — the risk exists only if the bucket allows anonymous listing/read, which requires a separate authorized assessment.

Reference: CWE-200 · CWE-284 · MASVS-STORAGE-2 — what the control asks for, and other apps with the same finding.

Evidence
2 recorded occurrences in the analyzed APK. These are distinct stored findings, not a count of every source match.
Verification
Static detection; current reachability is not established.
Open in all findingsRequest a correction
View all 6 categories

Is this your app?

The findings above are counts. The app's developer can see each one in context, be told when a new build changes the result, and re-check any backend that answers. Verify that you control yallachat.com (the site on this app's Play listing) to open that view. Free; no card.

Verify ownership

Privacy

52 requested permissions · 9 flagged high-risk classes.

Review privacy signals →

Build & components

90 components recorded. Certificate parsing does not validate APK signature integrity.

Inspect build evidence →
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Findings

6 categories · 8 occurrences. Severity totals describe categories. Expand a finding for interpretation and review guidance.

mediumCleartext (HTTP) traffic permitted1 occurrence

Interpretation & review guidance

The manifest permits cleartext (HTTP) traffic. Data sent over plain HTTP can be read or tampered with on the network; modern apps should require HTTPS.

Remediation: How to fix cleartext (HTTP) traffic in an Android app →

Reference: CWE-319 · MASVS-NETWORK-1 — what the control asks for, and other apps with the same finding.

Evidence
1 recorded occurrence in the analyzed APK. These are distinct stored findings, not a count of every source match.
Verification
Static detection; current reachability is not established.

Evidence preview

Evidence type
Parsed app configuration
Representative location
AndroidManifest.xml
Recorded match
android:usesCleartextTraffic="true"
Detector rule
manifest
Recorded file locations
  • AndroidManifest.xml

1 recorded findings have inspectable metadata. Duplicate matches may share a representative location.

Review whether this belongs to intended app functionality or a bundled library. A static match does not establish runtime impact.

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Link to categoryRequest a correction
mediumExported content provider without permission1 occurrence

Interpretation & review guidance

An exported content provider declares no permission. Other apps on the device may reach it — verify it enforces access control internally; this flags the attack surface, not a confirmed leak.

Remediation: How to fix exported Android components →

Reference: CWE-926 · CWE-284 · MASVS-PLATFORM-1 — what the control asks for, and other apps with the same finding.

Evidence
1 recorded occurrence in the analyzed APK. These are distinct stored findings, not a count of every source match.
Verification
Static detection; current reachability is not established.

Evidence preview

Evidence type
Parsed app configuration
Representative location
AndroidManifest.xml:com.yallatech.support.open.YlOpenContentProvider
Recorded match
YlOpenContentProvider (exported, no permission)
Detector rule
manifest
Recorded file locations
  • AndroidManifest.xml:com.yallatech.support.open.YlOpenContentProvider

1 recorded findings have inspectable metadata. Duplicate matches may share a representative location.

Review whether this belongs to intended app functionality or a bundled library. A static match does not establish runtime impact.

Preview evidence and Pro tools

Search recorded evidence and save private review notes with Pro. $99/month plus applicable tax.

Link to categoryRequest a correction
lowAmazon S3 bucket reference2 occurrences

Interpretation & review guidance

A reference to an Amazon S3 bucket. Using cloud storage is normal — the risk exists only if the bucket allows anonymous listing/read, which requires a separate authorized assessment.

Reference: CWE-200 · CWE-284 · MASVS-STORAGE-2 — what the control asks for, and other apps with the same finding.

Evidence
2 recorded occurrences in the analyzed APK. These are distinct stored findings, not a count of every source match.
Verification
Static detection; current reachability is not established.

Evidence preview

Evidence type
Static string match
Representative location
classes4.dex
Recorded match
Pattern recorded; identifying value redacted.
Detector rule
s3_bucket_url
Recorded file locations
  • classes4.dex

2 recorded findings have inspectable metadata. Duplicate matches may share a representative location.

Review whether this belongs to intended app functionality or a bundled library. A static match does not establish runtime impact.

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Search recorded evidence and save private review notes with Pro. $99/month plus applicable tax.

Link to categoryRequest a correction
lowBackground location access with advertising SDKs present1 occurrence

Interpretation & review guidance

The app can access location in the background (even when closed) and also ships advertising/attribution SDKs. Background location is a heightened-scrutiny area for Google Play and privacy regulators; confirm it is essential and disclosed, and that location isn't shared with ad networks.

Reference: CWE-359 · MASVS-PRIVACY-1 — what the control asks for, and other apps with the same finding.

Evidence
1 recorded occurrence in the analyzed APK. These are distinct stored findings, not a count of every source match.
Verification
Static detection; current reachability is not established.

Evidence preview

Evidence type
Static privacy indicators
Representative location
pii:bgloc
Recorded match
background location + ad SDKs
Detector rule
pii
Recorded file locations
  • pii:bgloc

1 recorded findings have inspectable metadata. Duplicate matches may share a representative location.

Review whether this belongs to intended app functionality or a bundled library. A static match does not establish runtime impact.

Preview evidence and Pro tools

Search recorded evidence and save private review notes with Pro. $99/month plus applicable tax.

Link to categoryRequest a correction
lowFirebase Storage bucket reference1 occurrence

Interpretation & review guidance

A Firebase Cloud Storage bucket reference (the default <project>.appspot.com). Storing user files here is normal — it's only an exposure if the Storage security rules allow public read/list, which live verification tests.

Remediation: Fix a publicly readable Firebase database →

Reference: CWE-200 · CWE-284 · MASVS-STORAGE-2 — what the control asks for, and other apps with the same finding.

Evidence
1 recorded occurrence in the analyzed APK. These are distinct stored findings, not a count of every source match.
Verification
Static detection; current reachability is not established.

Evidence preview

Evidence type
Static string match
Representative location
resources.arsc
Recorded match
Pattern recorded; identifying value redacted.
Detector rule
firebase_storage_bucket
Recorded file locations
  • resources.arsc

1 recorded findings have inspectable metadata. Duplicate matches may share a representative location.

Review whether this belongs to intended app functionality or a bundled library. A static match does not establish runtime impact.

Preview evidence and Pro tools

Search recorded evidence and save private review notes with Pro. $99/month plus applicable tax.

Link to categoryRequest a correction
lowGoogle API key (client-shipped; restriction unverified)2 occurrences

Interpretation & review guidance

Android apps are designed to ship Google API keys in the client; Google restricts them by app signing certificate + enabled API. This is only a problem if the key is left unrestricted — presence alone is expected, not an exposure.

Remediation: How to store secrets in a mobile app (without hardcoding) →

Reference: CWE-798 · MASVS-STORAGE-1 — what the control asks for, and other apps with the same finding.

Evidence
2 recorded occurrences in the analyzed APK. These are distinct stored findings, not a count of every source match.
Verification
Static detection; current reachability is not established.

Evidence preview

Evidence type
Static string match
Representative location
resources.arsc
Recorded match
AIza•••••••• (21–40 chars, redacted)
Detector rule
google_api_key
Recorded file locations
  • resources.arsc

2 recorded findings have inspectable metadata. Duplicate matches may share a representative location.

Review whether this belongs to intended app functionality or a bundled library. A static match does not establish runtime impact.

Preview evidence and Pro tools

Search recorded evidence and save private review notes with Pro. $99/month plus applicable tax.

Link to categoryRequest a correction

Privacy signals

Capabilities and bundled software do not prove that data was collected or transmitted.

Requested permissions52
Flagged high-risk classes9
Detected SDKs8

Background location Precise location Approx. location Camera Microphone Contacts Phone state Storage Draw over other apps

Requested permission inventory (52)
  • android.permission.ACCESS_ADSERVICES_AD_ID
  • android.permission.ACCESS_ADSERVICES_ATTRIBUTION
  • android.permission.ACCESS_BACKGROUND_LOCATION
  • android.permission.ACCESS_COARSE_LOCATION
  • android.permission.ACCESS_FINE_LOCATION
  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.ACCESS_WIFI_STATE
  • android.permission.BLUETOOTH_SCAN
  • android.permission.CAMERA
  • android.permission.CHANGE_NETWORK_STATE
  • android.permission.CHANGE_WIFI_STATE
  • android.permission.DETECT_SCREEN_RECORDING
  • android.permission.FLASHLIGHT
  • android.permission.FOREGROUND_SERVICE
  • android.permission.FOREGROUND_SERVICE_LOCATION
  • android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK
  • android.permission.FOREGROUND_SERVICE_MICROPHONE
  • android.permission.FOREGROUND_SERVICE_REMOTE_MESSAGING
  • android.permission.INSTALL_SHORTCUT
  • android.permission.INTERNET
  • android.permission.KILL_BACKGROUND_PROCESSES
  • android.permission.MODIFY_AUDIO_SETTINGS
  • android.permission.POST_NOTIFICATIONS
  • android.permission.READ_CONTACTS
  • android.permission.READ_EXTERNAL_STORAGE
  • android.permission.READ_MEDIA_AUDIO
  • android.permission.READ_MEDIA_IMAGES
  • android.permission.READ_MEDIA_VIDEO
  • android.permission.READ_MEDIA_VISUAL_USER_SELECTED
  • android.permission.READ_PHONE_OAID
  • android.permission.READ_PHONE_STATE
  • android.permission.RECEIVE_BOOT_COMPLETED
  • android.permission.RECORD_AUDIO
  • android.permission.REORDER_TASKS
  • android.permission.SYSTEM_ALERT_WINDOW
  • android.permission.SYSTEM_OVERLAY_WINDOW
  • android.permission.USE_BIOMETRIC
  • android.permission.USE_FINGERPRINT
  • android.permission.VIBRATE
  • android.permission.WAKE_LOCK
  • android.permission.WRITE_EXTERNAL_STORAGE
  • com.android.launcher.permission.INSTALL_SHORTCUT
  • com.asus.msa.SupplementaryDID.ACCESS
  • com.asus.permission.READ_SDID_PROVIDER
  • com.google.android.c2dm.permission.RECEIVE
  • com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
  • com.google.android.gms.permission.AD_ID
  • com.huawei.appmarket.service.commondata.permission.GET_COMMON_DATA
  • com.oplus.ocs.permission.third
  • com.samsung.android.mapsagent.permission.READ_APP_INFO
  • com.yallatech.yallachat.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
  • freemme.permission.msa

Data collection & flow (privacy signal, not part of the grade)

Data the app can access
Camera
Camera
Contacts
Contacts
Location
Approximate locationPrecise locationBackground location
Microphone
Microphone
Phone
Phone state / number
Photos & files
StorageStorage (write)Audio filesPhotosVideos
Persistent identifiers (referenced in code)
Advertising ID (AAID)Android IDDevice ID / IMEI
Where it can go
Third parties present (6)
Google AdMobGoogle Analytics for FirebaseGoogle Firebase AnalyticsGoogle Tag ManagerNew RelicAppsFlyer
  • Approximate location, Precise location, Background location requested while 2 ad/attribution SDK(s) are present (Google AdMob, AppsFlyer) — location commonly feeds ad targeting.
  • Persistent-identifier APIs referenced in code (Advertising ID (AAID), Android ID, Device ID / IMEI) with 6 analytics/ad SDK(s) present — the mechanism used for cross-app profiling.
  • Camera, Contacts, Microphone, Phone, Photos & files data requested with third-party analytics/ad SDKs present.

This maps what the app can access (permissions it requests, identifier APIs its code references) to the third parties bundled in it. It reflects capability and SDK presence — not proof that a specific value was transmitted.

Data Safety: declared vs observed (Play label vs our analysis)

Declared collected
App activityApp info and performanceContactsDevice or other IDsLocationMessagesPersonal infoPhotos and videos
Declared shared
App activityApp info and performanceDevice or other IDsPersonal infoPhotos and videos
We observe the app can access
ContactsLocation
✓ No obvious mismatch between the declaration and what we observe.

We compare the developer's Google Play Data Safety declaration with what the binary can actually do (permissions it requests, identifier APIs and third-party SDKs it ships). A mismatch is a capability signal to confirm — a requested permission is not proof of collection.

Trackers & SDKs (8 detected · privacy signal, not part of the grade)

Advertising
Google AdMob
Analytics
Google Analytics for FirebaseGoogle Firebase AnalyticsGoogle Tag ManagerNew Relic
Attribution
AppsFlyer
Consent
IAB TCF
Crash reporting
Google Crashlytics

Build & components

Scanned build 1.13.3. Store metadata may describe a newer release.

APK SHA-256bbd278f851a8744d1259335e8acbc1b00e7792bb0947145da9e90ee7fe83ecf1

Signing certificate (who signed this build — factual, not part of the grade)

Signer
unknown signer self-signed
Scheme
V3V2V1
Key
RSA 2048-bit
Algorithm
sha256WithRSA
Validity
2021-03-10 → 2046-03-04
Cert SHA-256
c4:07:a6:98:23:2e:c5:04:05:e2:18:37:b6:c4:39:43:11:c7:23:88:49:5b:3b:85:f1:0c:ff:6e:74:3a:18:d5

The certificate fingerprint identifies the parsed signing certificate. Knowing this public fingerprint does not establish ownership or validate the APK signature.

Signature integrity: not established by certificate parsing.

Component inventory

90 components. Advisory matching covers a curated set; no match is not proof that a component is vulnerability-free.

Bundled components and recorded advisory matches
ComponentVersionAdvisory matches
androidx.activity:activity1.9.0None recorded
androidx.activity:activity-ktx1.9.0None recorded
androidx.annotation:annotation-experimental1.4.1None recorded
androidx.appcompat:appcompat1.7.0None recorded
androidx.appcompat:appcompat-resources1.7.0None recorded
androidx.biometric:biometric1.1.0None recorded
androidx.cardview:cardview1.0.0None recorded
androidx.constraintlayout:constraintlayout2.2.1None recorded
androidx.coordinatorlayout:coordinatorlayout1.1.0None recorded
androidx.core:core1.16.0None recorded
androidx.core:core-ktx1.16.0None recorded
androidx.core:core-viewtree1.0.0None recorded
androidx.cursoradapter:cursoradapter1.0.0None recorded
androidx.customview:customview1.1.0None recorded
androidx.customview:customview-poolingcontainer1.0.0None recorded
androidx.databinding:baseAdapters4.1.0-rc03None recorded
androidx.databinding:library4.1.0-rc03None recorded
androidx.databinding:viewbinding8.11.1None recorded
androidx.datastore:datastore1.1.3None recorded
androidx.datastore:datastore-core1.1.3None recorded
androidx.datastore:datastore-preferences1.1.3None recorded
androidx.documentfile:documentfile1.0.0None recorded
androidx.dynamicanimation:dynamicanimation1.0.0None recorded
androidx.emoji2:emoji21.3.0None recorded
androidx.emoji2:emoji2-views1.3.0None recorded
androidx.emoji2:emoji2-views-helper1.3.0None recorded
androidx.exifinterface:exifinterface1.4.1None recorded
androidx.fragment:fragment1.8.9None recorded
androidx.fragment:fragment-ktx1.8.9None recorded
androidx.interpolator:interpolator1.0.0None recorded
androidx.legacy:legacy-support-core-utils1.0.0None recorded
androidx.lifecycle:lifecycle-extensions2.2.0None recorded
androidx.lifecycle:lifecycle-livedata2.9.4None recorded
androidx.lifecycle:lifecycle-livedata-core2.9.4None recorded
androidx.lifecycle:lifecycle-livedata-core-ktx2.9.4None recorded
androidx.lifecycle:lifecycle-livedata-ktx2.9.4None recorded
androidx.lifecycle:lifecycle-process2.9.4None recorded
androidx.lifecycle:lifecycle-runtime2.9.4None recorded
androidx.lifecycle:lifecycle-runtime-ktx2.9.4None recorded
androidx.lifecycle:lifecycle-service2.9.4None recorded
androidx.lifecycle:lifecycle-viewmodel2.9.4None recorded
androidx.lifecycle:lifecycle-viewmodel-ktx2.9.4None recorded
androidx.lifecycle:lifecycle-viewmodel-savedstate2.9.4None recorded
androidx.loader:loader1.0.0None recorded
androidx.localbroadcastmanager:localbroadcastmanager1.0.0None recorded
androidx.media:media1.6.0None recorded
androidx.navigation:navigation-common2.9.3None recorded
androidx.navigation:navigation-fragment2.9.3None recorded
androidx.navigation:navigation-fragment-ktx2.9.3None recorded
androidx.navigation:navigation-runtime2.9.3None recorded
androidx.navigation:navigation-ui2.9.3None recorded
androidx.navigation:navigation-ui-ktx2.9.3None recorded
androidx.paging:paging-common3.3.0None recorded
androidx.paging:paging-runtime3.3.0None recorded
androidx.paging:paging-runtime-ktx3.3.0None recorded
androidx.palette:palette1.0.0None recorded
androidx.palette:palette-ktx1.0.0None recorded
androidx.print:print1.0.0None recorded
androidx.privacysandbox.ads:ads-adservices1.1.0-beta11None recorded
androidx.privacysandbox.ads:ads-adservices-java1.1.0-beta11None recorded
androidx.profileinstaller:profileinstaller1.4.0None recorded
androidx.recyclerview:recyclerview1.4.0None recorded
androidx.recyclerview:recyclerview-selection1.2.0None recorded
androidx.room:room-ktx2.6.1None recorded
androidx.room:room-paging2.6.1None recorded
androidx.room:room-runtime2.6.1None recorded
androidx.savedstate:savedstate1.3.1None recorded
androidx.savedstate:savedstate-ktx1.3.1None recorded
androidx.sharetarget:sharetarget1.2.0None recorded
androidx.slidingpanelayout:slidingpanelayout1.2.0None recorded
androidx.sqlite:sqlite2.4.0None recorded
androidx.sqlite:sqlite-framework2.4.0None recorded
androidx.startup:startup-runtime1.1.1None recorded
androidx.tracing:tracing1.2.0None recorded
androidx.tracing:tracing-ktx1.2.0None recorded
androidx.transition:transition1.6.0None recorded
androidx.transition:transition-ktx1.6.0None recorded
androidx.vectordrawable:vectordrawable1.1.0None recorded
androidx.vectordrawable:vectordrawable-animated1.1.0None recorded
androidx.versionedparcelable:versionedparcelable1.1.1None recorded
androidx.viewpager2:viewpager21.1.0None recorded
androidx.viewpager:viewpager1.0.0None recorded
androidx.window:window1.0.0None recorded
androidx.work:work-runtime2.10.3None recorded
androidx.work:work-runtime-ktx2.10.3None recorded
com.google.android.material:material1.12.0None recorded
com.squareup.okhttp3:okhttp4.12.0None recorded
kotlinx:coroutines_android1.8.1None recorded
kotlinx:coroutines_core1.8.1None recorded
kotlinx:coroutines_play_services1.8.1None recorded
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About this app · store information

About this app

Secure messaging, high-quality voice and video calls, Fun games and more

Content ratingEveryone
Download size142.6 MB
Privacy policyPublished →
Developer sitewww.yallachat.com

Screenshots

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Other apps by Yalla Technology FZ-LLC

Published under the same developer name on Google Play, and scanned here. Each grade describes that app's own recorded build — it says nothing about this one.

Scan history

Each row is an observed scan. Gaps between scans do not establish how long a finding existed.

Scanned (UTC)BuildScoreGrade
2026-11-10 07:56 UTC1.13.384C

View changes between the last two scans →

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Exports describe the recorded assessment. Signed evidence proves origin and integrity, not completeness or safety.

SARIFFindings CSVCoverage JSONSigned evidenceSBOM

Coverage & gap matrix · Verify signed evidence

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