English Conversation
AT Apps Studio · Build 11
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.
Backend checks: 7 unauthenticated read checks against backends referenced in this build — 4 refused access, 2 answered, 1 could not be determined. Each check describes one request at the recorded scan time and does not establish the backend's current state. An undetermined result is not evidence that the backend is closed.
Overview
1 high or critical finding category to review
English Conversation (com.atentertainment.learningenglishbyparagraph) was scanned at version 11 on 2026-10-27 but is not graded, because the analysis did not complete enough of its checks for a score to mean anything. It has 1 high or critical finding category of 3, across 6 occurrences. One finding was confirmed live: an anonymous request reached a backend the app references and it answered without authentication. No credential was used and no stored data was read. 5 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.
Start with these findings
criticalFirebase Storage bucket reference — confirmed publicly readable3 occurrences
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
- 3 recorded occurrences in the analyzed APK. These are distinct stored findings, not a count of every source match.
- Verification
- 2 historically verified occurrences at the recorded scan time. Current reachability is not established.
lowFirebase Realtime Database reference1 occurrence
Interpretation & review guidance
A Firebase Realtime Database URL. Nearly every app that uses Firebase ships one. It's only an exposure if the database rules are world-readable — that's what live verification checks.
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.
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.
Build & components
51 components recorded. Certificate parsing does not validate APK signature integrity.
Inspect build evidence →Findings
3 categories · 6 occurrences. Severity totals describe categories. Expand a finding for interpretation and review guidance.
criticalFirebase Storage bucket reference — confirmed publicly readable3 occurrences
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
- 3 recorded occurrences in the analyzed APK. These are distinct stored findings, not a count of every source match.
- Verification
- 2 historically verified occurrences at the recorded scan time. Current reachability is not established.
Evidence preview
- Evidence type
- Static string match
- Representative location
classes.dex- Recorded match
Pattern recorded; identifying value redacted.- Detector rule
firebase_storage- Recorded file locations
classes.dex
3 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 toolsSearch recorded evidence and save private review notes with Pro. $99/month plus applicable tax.
lowFirebase Realtime Database reference1 occurrence
Interpretation & review guidance
A Firebase Realtime Database URL. Nearly every app that uses Firebase ships one. It's only an exposure if the database rules are world-readable — that's what live verification checks.
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_db- 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 toolsSearch recorded evidence and save private review notes with Pro. $99/month plus applicable tax.
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 toolsSearch recorded evidence and save private review notes with Pro. $99/month plus applicable tax.
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Privacy signals
Capabilities and bundled software do not prove that data was collected or transmitted.
Microphone
Requested permission inventory (16)
Data collection & flow (privacy signal, not part of the grade)
- Persistent-identifier APIs referenced in code (Advertising ID (AAID), Android ID, Device ID / IMEI) with 3 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.
Trackers & SDKs (5 detected · privacy signal, not part of the grade)
Build & components
Scanned build 11. Store metadata may describe a newer release.
32b4bd42c4b85050bd3264efdbce7e15affc1d7f31eb936d1ec6cf98284e7681Signing certificate (who signed this build — factual, not part of the grade)
af:42:59:4a:91:c6:02:64:68:70:72:f2:58:e3:3b:79:1b:a7:78:13:19:8e:a1:55:20:49:27:a0:7d:b1:73:e0The certificate fingerprint identifies the parsed signing certificate. Knowing this public fingerprint does not establish ownership or validate the APK signature.
Component inventory
51 components. Advisory matching covers a curated set; no match is not proof that a component is vulnerability-free.
| Component | Version | Advisory matches |
|---|---|---|
androidx.activity:activity | 1.8.0 | None recorded |
androidx.annotation:annotation-experimental | 1.3.0 | None recorded |
androidx.appcompat:appcompat | 1.6.1 | None recorded |
androidx.appcompat:appcompat-resources | 1.6.1 | None recorded |
androidx.asynclayoutinflater:asynclayoutinflater | 1.0.0 | None recorded |
androidx.browser:browser | 1.4.0 | None recorded |
androidx.cardview:cardview | 1.0.0 | None recorded |
androidx.coordinatorlayout:coordinatorlayout | 1.1.0 | None recorded |
androidx.core:core | 1.9.0 | None recorded |
androidx.core:core-ktx | 1.9.0 | None recorded |
androidx.cursoradapter:cursoradapter | 1.0.0 | None recorded |
androidx.customview:customview | 1.1.0 | None recorded |
androidx.customview:customview-poolingcontainer | 1.0.0 | None recorded |
androidx.documentfile:documentfile | 1.0.0 | None recorded |
androidx.drawerlayout:drawerlayout | 1.1.1 | None recorded |
androidx.dynamicanimation:dynamicanimation | 1.0.0 | None recorded |
androidx.emoji2:emoji2 | 1.2.0 | None recorded |
androidx.emoji2:emoji2-views-helper | 1.2.0 | None recorded |
androidx.fragment:fragment | 1.3.6 | None recorded |
androidx.interpolator:interpolator | 1.0.0 | None recorded |
androidx.legacy:legacy-support-core-ui | 1.0.0 | None recorded |
androidx.legacy:legacy-support-core-utils | 1.0.0 | None recorded |
androidx.legacy:legacy-support-v4 | 1.0.0 | None recorded |
androidx.loader:loader | 1.0.0 | None recorded |
androidx.localbroadcastmanager:localbroadcastmanager | 1.0.0 | None recorded |
androidx.media:media | 1.0.0 | None recorded |
androidx.print:print | 1.0.0 | None recorded |
androidx.privacysandbox.ads:ads-adservices | 1.0.0-beta05 | None recorded |
androidx.privacysandbox.ads:ads-adservices-java | 1.0.0-beta05 | None recorded |
androidx.profileinstaller:profileinstaller | 1.3.0 | None recorded |
androidx.recyclerview:recyclerview | 1.3.2 | None recorded |
androidx.room:room-ktx | 2.5.0 | None recorded |
androidx.room:room-runtime | 2.5.0 | None recorded |
androidx.savedstate:savedstate | 1.2.1 | None recorded |
androidx.slidingpanelayout:slidingpanelayout | 1.0.0 | None recorded |
androidx.sqlite:sqlite | 2.3.0 | None recorded |
androidx.sqlite:sqlite-framework | 2.3.0 | None recorded |
androidx.startup:startup-runtime | 1.1.1 | None recorded |
androidx.swiperefreshlayout:swiperefreshlayout | 1.0.0 | None recorded |
androidx.tracing:tracing | 1.0.0 | None recorded |
androidx.transition:transition | 1.2.0 | None recorded |
androidx.vectordrawable:vectordrawable | 1.1.0 | None recorded |
androidx.vectordrawable:vectordrawable-animated | 1.1.0 | None recorded |
androidx.versionedparcelable:versionedparcelable | 1.1.1 | None recorded |
androidx.viewpager2:viewpager2 | 1.1.0-beta02 | None recorded |
androidx.viewpager:viewpager | 1.0.0 | None recorded |
androidx.work:work-runtime | 2.9.1 | None recorded |
com.google.android.material:material | 1.11.0 | None recorded |
kotlinx:coroutines_android | 1.7.1 | None recorded |
kotlinx:coroutines_core | 1.7.1 | None recorded |
kotlinx:coroutines_play_services | 1.7.1 | None recorded |
About this app · store information
About this app
Practice speaking and listening with 500 English real-life conversation dialogs.
Screenshots
Scan history
Each row is an observed scan. Gaps between scans do not establish how long a finding existed.
| Scanned (UTC) | Build | Score | Grade |
|---|---|---|---|
| 2026-10-27 23:28 UTC | 11 | Not graded | Not graded |
Export & share
Exports describe the recorded assessment. Signed evidence proves origin and integrity, not completeness or safety.
Coverage & gap matrix · Verify signed evidence
API users can request authenticated, scan-specific exports at /v1/scans/fb7d6556-c29b-4bb8-8600-b61b76fd26e4/findings.sarif (also coverage.json and proof.json).
Request a correction or removal · How to interpret a scan · Browse apps