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Dejavu Wallpaper - Arts

Neuron Labs Technology Co.,Ltd · Build 2.4.4

com.neuronlabs.boringday
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Static analysis completeScanned 2026-10-03 18:01 UTC

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

Overview

Analysis recorded

3 finding categories to review

Dejavu Wallpaper - Arts (com.neuronlabs.boringday) scored grade A, 98 out of 100, in a static scan of version 2.4.4 on 2026-10-03. It has no high or critical findings, and 3 lower-severity finding categories across 3 occurrences. 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 categories33 occurrences
High / critical0Category count
Tracking SDKs6Presence, not observed traffic
Assessment score98 / 100Grade A

Start with these findings

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.

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)1 occurrence

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
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
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

15 requested permissions · 1 flagged high-risk classes.

Review privacy signals →

Build & components

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

Inspect build evidence →
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Findings

3 categories · 3 occurrences. Severity totals describe categories. Expand a finding for interpretation and review guidance.

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.

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
  • _split_config.arm64_v8a/lib/arm64-v8a/libapp.so

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
lowGoogle API key (client-shipped; restriction unverified)1 occurrence

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
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
AIza•••••••• (21–40 chars, redacted)
Detector rule
google_api_key
Recorded file locations
  • resources.arsc
  • _split_config.arm64_v8a/lib/arm64-v8a/libapp.so

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
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 permissions15
Flagged high-risk classes1
Detected SDKs6

Storage

Requested permission inventory (15)
  • android.permission.ACCESS_ADSERVICES_AD_ID
  • android.permission.ACCESS_ADSERVICES_ATTRIBUTION
  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.ACCESS_WIFI_STATE
  • android.permission.FOREGROUND_SERVICE
  • android.permission.INTERNET
  • android.permission.READ_EXTERNAL_STORAGE
  • android.permission.RECEIVE_BOOT_COMPLETED
  • android.permission.SET_WALLPAPER
  • android.permission.WRITE_EXTERNAL_STORAGE
  • com.android.vending.BILLING
  • com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
  • com.google.android.gms.permission.AD_ID
  • com.google.android.providers.gsf.permission.READ_GSERVICES
  • com.neuronlabs.boringday.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

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

Data the app can access
Photos & files
Storage (write)Storage
Persistent identifiers (referenced in code)
Advertising ID (AAID)Android IDDevice ID / IMEISubscriber ID (IMSI)SIM serial
Where it can go
Third parties present (5)
Google AdMobGoogle Analytics for FirebaseGoogle Firebase AnalyticsGoogle Tag ManagerMeta / Facebook SDK
  • Persistent-identifier APIs referenced in code (Advertising ID (AAID), Android ID, Device ID / IMEI +2 more) with 5 analytics/ad SDK(s) present — the mechanism used for cross-app profiling.
  • 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 comparison not recorded.

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

Advertising
Google AdMob
Analytics
Google Analytics for FirebaseGoogle Firebase AnalyticsGoogle Tag ManagerMeta / Facebook SDK
Consent
IAB TCF

Build & components

Scanned build 2.4.4. Store metadata may describe a newer release.

APK SHA-2564215f753d7ac00f3ed074b69896291b72f8015581a2708ef970afd53ba283055

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

Signer
北京经云实验室科技有限公司 self-signed
Scheme
V3V2
Key
RSA 2048-bit
Algorithm
sha256WithRSA
Validity
2023-12-19 → 2048-12-12
Cert SHA-256
a1:35:ab:65:df:46:77:d9:e6:14:6e:4f:d6:74:87:b5:00:46:9b:42:2f:6c:11:9b:85:70:c5:79:d1:01:16:c6

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

88 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:activity1.10.1None recorded
androidx.activity:activity-ktx1.10.1None recorded
androidx.annotation:annotation-experimental1.4.1None recorded
androidx.appcompat:appcompat1.7.1None recorded
androidx.appcompat:appcompat-resources1.7.1None recorded
androidx.asynclayoutinflater:asynclayoutinflater1.0.0None recorded
androidx.autofill:autofill1.0.0None recorded
androidx.cardview:cardview1.0.0None recorded
androidx.compose.runtime:runtime1.7.8None recorded
androidx.compose.runtime:runtime-saveable1.7.8None recorded
androidx.compose.ui:ui1.6.8None recorded
androidx.compose.ui:ui-geometry1.6.8None recorded
androidx.compose.ui:ui-graphics1.6.8None recorded
androidx.compose.ui:ui-text1.6.8None recorded
androidx.compose.ui:ui-unit1.6.8None recorded
androidx.compose.ui:ui-util1.6.8None recorded
androidx.coordinatorlayout:coordinatorlayout1.0.0None recorded
androidx.core:core1.16.0None recorded
androidx.core:core-ktx1.16.0None recorded
androidx.core:core-remoteviews1.1.0None recorded
androidx.core:core-viewtree1.0.0None recorded
androidx.credentials:credentials1.2.0-rc01None recorded
androidx.credentials:credentials-play-services-auth1.2.0-rc01None recorded
androidx.cursoradapter:cursoradapter1.0.0None recorded
androidx.customview:customview1.1.0None 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:exifinterface1.3.7None recorded
androidx.fragment:fragment1.7.1None recorded
androidx.fragment:fragment-ktx1.7.1None recorded
androidx.glance:glance1.2.0-rc01None recorded
androidx.glance:glance-appwidget1.2.0-rc01None recorded
androidx.heifwriter:heifwriter1.0.0None recorded
androidx.interpolator:interpolator1.0.0None recorded
androidx.legacy:legacy-support-core-ui1.0.0None recorded
androidx.legacy:legacy-support-core-utils1.0.0None recorded
androidx.legacy:legacy-support-v41.0.0None recorded
androidx.lifecycle:lifecycle-livedata2.7.0None recorded
androidx.lifecycle:lifecycle-livedata-core2.7.0None recorded
androidx.lifecycle:lifecycle-livedata-core-ktx2.7.0None recorded
androidx.lifecycle:lifecycle-process2.7.0None recorded
androidx.lifecycle:lifecycle-runtime2.7.0None recorded
androidx.lifecycle:lifecycle-runtime-ktx2.7.0None recorded
androidx.lifecycle:lifecycle-service2.7.0None recorded
androidx.lifecycle:lifecycle-viewmodel2.7.0None recorded
androidx.lifecycle:lifecycle-viewmodel-ktx2.7.0None recorded
androidx.lifecycle:lifecycle-viewmodel-savedstate2.7.0None recorded
androidx.loader:loader1.1.0None recorded
androidx.localbroadcastmanager:localbroadcastmanager1.0.0None recorded
androidx.media:media1.0.0None recorded
androidx.preference:preference1.2.1None 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.recyclerview:recyclerview1.0.0None recorded
androidx.room:room-runtime2.7.0None recorded
androidx.savedstate:savedstate1.2.1None recorded
androidx.savedstate:savedstate-ktx1.2.1None recorded
androidx.slidingpanelayout:slidingpanelayout1.2.0None recorded
androidx.sqlite:sqlite2.5.0None recorded
androidx.sqlite:sqlite-framework2.5.0None recorded
androidx.startup:startup-runtime1.2.0None recorded
androidx.swiperefreshlayout:swiperefreshlayout1.0.0None recorded
androidx.tracing:tracing1.2.0None recorded
androidx.tracing:tracing-ktx1.2.0None recorded
androidx.transition:transition1.4.1None 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:window1.2.0None recorded
androidx.window:window-java1.2.0None recorded
androidx.work:work-runtime2.11.2None recorded
androidx.work:work-runtime-ktx2.11.2None recorded
com.squareup.okhttp3:okhttp5.2.1None recorded
kotlinx:coroutines_android1.10.2None recorded
kotlinx:coroutines_core1.10.2None recorded
kotlinx:coroutines_play_services1.10.2None recorded
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About this app · store information

About this app

Art Wallpaper Magazine: HD wallpapers for Phone, Computer, Pad, and Watch

Content ratingEveryone
Download size87.8 MB
Privacy policyPublished →
Developer siteboringday.app

Screenshots

App screenshotApp screenshotApp screenshotApp screenshotApp screenshotApp screenshotApp screenshot

Scan history

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

Scanned (UTC)BuildScoreGrade
2026-10-03 18:01 UTC2.4.498A
2026-09-17 12:25 UTC2.4.497A

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

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apk-scanner.com exposure grade
Markdown
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