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LingoMatrix:Learn 70 Languages

Baycan Anli · Build 1.8

com.baycan.englishmatrixreflex
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Limited coverageScanned 2026-10-07 00:42 UTC

Review the recorded findings below. An overall grade is withheld where required checks lack coverage; a new scan may provide additional evidence.

Analysis limitations (1)
  • The amount of extracted text exceeded the analysis limit.

Overview

Limited assessment

3 finding categories to review

LingoMatrix:Learn 70 Languages (com.baycan.englishmatrixreflex) was scanned at version 1.8 on 2026-10-07 but is not graded, because the analysis did not complete enough of its checks for a score to mean anything. The checks that did run recorded 3 finding categories across 4 occurrences; because the analysis did not complete, the absence of anything more severe is not a result. 6 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 categories34 occurrences
High / critical0Category count
Tracking SDKs6Presence, not observed traffic
Assessment scoreNot gradedNot graded

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.

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
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.

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
infoApplication data is backup-enabled1 occurrence

Interpretation & review guidance

The app allows Android backups (android:allowBackup="true"). App data can then be extracted via adb backup on many devices — a concern if the app stores tokens or personal/health/payment data locally. Common and low-severity, but worth disabling for sensitive apps.

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
View all 3 categories

Privacy

16 requested permissions · 1 flagged high-risk classes.

Review privacy signals →

Build & components

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

Inspect build evidence →
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Findings

3 categories · 4 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.

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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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.

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
infoApplication data is backup-enabled1 occurrence

Interpretation & review guidance

The app allows Android backups (android:allowBackup="true"). App data can then be extracted via adb backup on many devices — a concern if the app stores tokens or personal/health/payment data locally. Common and low-severity, but worth disabling for sensitive apps.

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:allowBackup="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.

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 permissions16
Flagged high-risk classes1
Detected SDKs6

Microphone

Requested permission inventory (16)
  • android.permission.ACCESS_ADSERVICES_AD_ID
  • android.permission.ACCESS_ADSERVICES_ATTRIBUTION
  • android.permission.ACCESS_ADSERVICES_TOPICS
  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.FOREGROUND_SERVICE
  • android.permission.INTERNET
  • android.permission.MODIFY_AUDIO_SETTINGS
  • android.permission.POST_NOTIFICATIONS
  • android.permission.RECORD_AUDIO
  • android.permission.WAKE_LOCK
  • com.android.vending.BILLING
  • com.android.vending.CHECK_LICENSE
  • com.baycan.englishmatrixreflex.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
  • com.google.android.c2dm.permission.RECEIVE
  • com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
  • com.google.android.gms.permission.AD_ID

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

Data the app can access
Microphone
Microphone
Persistent identifiers (referenced in code)
Advertising ID (AAID)Android IDDevice ID / IMEI
Where it can go
Third parties present (4)
Google AdMobGoogle Analytics for FirebaseGoogle Firebase AnalyticsGoogle Tag Manager
  • Persistent-identifier APIs referenced in code (Advertising ID (AAID), Android ID, Device ID / IMEI) with 4 analytics/ad SDK(s) present — the mechanism used for cross-app profiling.
  • Microphone 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 comparison is not conclusive because analysis coverage is incomplete or unknown.

Trackers & SDKs (6 detected · privacy signal, not part of the grade)

Advertising
Google AdMob
Analytics
Google Analytics for FirebaseGoogle Firebase AnalyticsGoogle Tag Manager
Consent
Google UMP (consent)IAB TCF

Build & components

Scanned build 1.8. Store metadata may describe a newer release.

APK SHA-256cef56f714c95b9ffa1732fb213d85290fb10e1b908683b85a3a5ae541d4e67f9

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

Signer
Google Inc. self-signed
Scheme
V3V2
Key
RSA 4096-bit
Algorithm
sha256WithRSA
Validity
2026-05-16 → 2056-05-16
Cert SHA-256
c6:0d:47:71:e1:a3:ec:cf:4b:49:a4:e3:fd:86:7a:bb:68:a1:a2:ca:52:ce:de:f8:6b:d6:5e:77:55:14:30:d1

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

87 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:activity1.10.0None recorded
androidx.activity:activity-compose1.10.0None recorded
androidx.activity:activity-ktx1.10.0None recorded
androidx.annotation:annotation-experimental1.4.1None recorded
androidx.appcompat:appcompat1.7.0None recorded
androidx.appcompat:appcompat-resources1.7.0None recorded
androidx.autofill:autofill1.0.0None recorded
androidx.browser:browser1.8.0None recorded
androidx.compose.animation:animation1.7.2None recorded
androidx.compose.animation:animation-core1.7.2None recorded
androidx.compose.foundation:foundation1.7.2None recorded
androidx.compose.foundation:foundation-layout1.7.2None recorded
androidx.compose.material3.adaptive:adaptive1.0.0None recorded
androidx.compose.material3:material31.3.0None recorded
androidx.compose.material:material1.7.0None recorded
androidx.compose.material:material-icons-core1.7.0None recorded
androidx.compose.material:material-ripple1.7.0None recorded
androidx.compose.runtime:runtime1.7.2None recorded
androidx.compose.runtime:runtime-saveable1.7.2None recorded
androidx.compose.ui:ui1.7.2None recorded
androidx.compose.ui:ui-geometry1.7.2None recorded
androidx.compose.ui:ui-graphics1.7.2None recorded
androidx.compose.ui:ui-text1.7.2None recorded
androidx.compose.ui:ui-text-google-fonts1.7.2None recorded
androidx.compose.ui:ui-tooling-preview1.7.2None recorded
androidx.compose.ui:ui-unit1.7.2None recorded
androidx.compose.ui:ui-util1.7.2None recorded
androidx.constraintlayout:constraintlayout-compose1.1.0None recorded
androidx.coordinatorlayout:coordinatorlayout1.2.0None recorded
androidx.core:core1.15.0None recorded
androidx.core:core-ktx1.15.0None recorded
androidx.core:core-splashscreen1.0.1None recorded
androidx.cursoradapter:cursoradapter1.0.0None recorded
androidx.customview:customview1.0.0None recorded
androidx.customview:customview-poolingcontainer1.0.0None recorded
androidx.datastore:datastore1.1.7None recorded
androidx.datastore:datastore-core1.1.7None recorded
androidx.datastore:datastore-preferences1.1.7None recorded
androidx.datastore:datastore-preferences-core1.1.7None recorded
androidx.documentfile:documentfile1.0.0None recorded
androidx.drawerlayout:drawerlayout1.0.0None recorded
androidx.emoji2:emoji21.3.0None recorded
androidx.emoji2:emoji2-views-helper1.3.0None recorded
androidx.exifinterface:exifinterface1.3.6None recorded
androidx.fragment:fragment1.8.5None recorded
androidx.fragment:fragment-ktx1.8.5None recorded
androidx.graphics:graphics-path1.0.1None recorded
androidx.interpolator:interpolator1.0.0None recorded
androidx.legacy:legacy-support-core-utils1.0.0None recorded
androidx.lifecycle:lifecycle-livedata2.8.3None recorded
androidx.lifecycle:lifecycle-livedata-core2.8.3None recorded
androidx.lifecycle:lifecycle-livedata-core-ktx2.8.3None recorded
androidx.lifecycle:lifecycle-process2.8.3None recorded
androidx.lifecycle:lifecycle-runtime2.8.3None recorded
androidx.lifecycle:lifecycle-runtime-compose2.8.3None recorded
androidx.lifecycle:lifecycle-runtime-ktx2.8.3None recorded
androidx.lifecycle:lifecycle-service2.8.3None recorded
androidx.lifecycle:lifecycle-viewmodel2.8.3None recorded
androidx.lifecycle:lifecycle-viewmodel-compose2.8.3None recorded
androidx.lifecycle:lifecycle-viewmodel-ktx2.8.3None recorded
androidx.lifecycle:lifecycle-viewmodel-savedstate2.8.3None recorded
androidx.loader:loader1.0.0None recorded
androidx.localbroadcastmanager:localbroadcastmanager1.0.0None recorded
androidx.print:print1.0.0None recorded
androidx.privacysandbox.ads:ads-adservices1.0.0-beta05None recorded
androidx.privacysandbox.ads:ads-adservices-java1.0.0-beta05None recorded
androidx.profileinstaller:profileinstaller1.4.0None recorded
androidx.room:room-runtime2.2.5None recorded
androidx.savedstate:savedstate1.2.1None recorded
androidx.savedstate:savedstate-ktx1.2.1None recorded
androidx.sqlite:sqlite2.1.0None recorded
androidx.sqlite:sqlite-framework2.1.0None recorded
androidx.startup:startup-runtime1.1.1None recorded
androidx.tracing:tracing1.2.0None recorded
androidx.vectordrawable:vectordrawable1.1.0None recorded
androidx.vectordrawable:vectordrawable-animated1.1.0None recorded
androidx.versionedparcelable:versionedparcelable1.1.1None recorded
androidx.viewpager:viewpager1.0.0None recorded
androidx.webkit:webkit1.12.1None recorded
androidx.window.extensions.core:core1.0.0None recorded
androidx.window:window1.3.0None recorded
androidx.window:window-core1.3.0None recorded
androidx.work:work-runtime2.7.0None recorded
com.squareup.okhttp3:okhttp4.11.0None recorded
kotlinx:coroutines_android1.9.0None recorded
kotlinx:coroutines_core1.9.0None recorded
kotlinx:coroutines_play_services1.9.0None recorded
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About this app · store information

About this app

Practice with color coding in 70 languages Speak fluently with the reflex method

Content ratingEveryone
Download size21.4 MB
Privacy policyPublished →

Screenshots

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Scan history

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

Scanned (UTC)BuildScoreGrade
2026-10-07 00:42 UTC1.8Not gradedNot graded

View changes between the last two scans →

Export & share

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

API users can request authenticated, scan-specific exports at /v1/scans/52332218-50a7-4503-b926-a4ab611286bb/findings.sarif (also coverage.json and proof.json).

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