Foldman - Cassette player

APPxygen · Build 1.2.12

app.foldman.deck
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Static analysis completeScanned 2026-11-15 09:01 UTC

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

Overview

Analysis recorded

1 finding categories to review

Foldman - Cassette player (app.foldman.deck) scored grade A, 100 out of 100, in a static scan of version 1.2.12 on 2026-11-15. It has no high or critical findings, and 1 lower-severity finding category across 1 occurrence. 2 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 categories11 occurrences
High / critical0Category count
Tracking SDKs2Presence, not observed traffic
Assessment score100 / 100Grade A

Start with these findings

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.

Reference: CWE-530 · CWE-312 · MASVS-STORAGE-1 · 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.
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View all 1 categories

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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 appxygen.com (the site on this app's Play listing) to open that view. Free; no card.

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Privacy

12 requested permissions · 0 flagged high-risk classes.

Review privacy signals →

Build & components

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

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Findings

1 categories · 1 occurrences. Severity totals describe categories. Expand a finding for interpretation and review guidance.

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.

Reference: CWE-530 · CWE-312 · MASVS-STORAGE-1 · 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
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.

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Link to categoryRequest a correction

Privacy signals

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

Requested permissions12
Flagged high-risk classes0
Detected SDKs2
Requested permission inventory (12)
  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.FOREGROUND_SERVICE
  • android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK
  • android.permission.INTERNET
  • android.permission.POST_NOTIFICATIONS
  • android.permission.READ_MEDIA_AUDIO
  • android.permission.RECEIVE_BOOT_COMPLETED
  • android.permission.VIBRATE
  • android.permission.WAKE_LOCK
  • app.foldman.deck.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
  • com.android.vending.BILLING
  • com.android.vending.CHECK_LICENSE

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

Data the app can access
Photos & files
Audio filesStorage
Persistent identifiers (referenced in code)
Advertising ID (AAID)Android IDDevice ID / IMEI
Where it can go
Third parties present (2)
Google AdMobAmplitude
  • Persistent-identifier APIs referenced in code (Advertising ID (AAID), Android ID, Device ID / IMEI) with 2 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 (2 detected · privacy signal, not part of the grade)

Advertising
Google AdMob
Analytics
Amplitude

Build & components

Scanned build 1.2.12. Store metadata may describe a newer release.

APK SHA-2566b106e206b9a91367dbf6264c0ecc1d137a0305271b93975e42f3c36fc00a321

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

Signer
Foldman self-signed
Scheme
V3V2
Key
RSA 4096-bit
Algorithm
sha384WithRSA
Validity
2026-10-02 → 2054-02-17
Cert SHA-256
0b:ae:ae:62:c7:85:d3:8b:a3:59:e9:5d:a1:07:9f:e8:25:50:34:f5:91:34:25:12:4a:8f:d3:7c:24:2a:c2:d7

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

70 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:activity1.13.0None recorded
androidx.activity:activity-compose1.13.0None recorded
androidx.activity:activity-ktx1.13.0None recorded
androidx.annotation:annotation-experimental1.4.1None recorded
androidx.autofill:autofill1.0.0None recorded
androidx.browser:browser1.9.0None recorded
androidx.compose.animation:animation1.12.1None recorded
androidx.compose.animation:animation-core1.12.1None recorded
androidx.compose.foundation:foundation1.12.1None recorded
androidx.compose.foundation:foundation-layout1.12.1None recorded
androidx.compose.runtime:runtime1.12.1None recorded
androidx.compose.runtime:runtime-annotation1.12.1None recorded
androidx.compose.runtime:runtime-retain1.12.1None recorded
androidx.compose.runtime:runtime-saveable1.12.1None recorded
androidx.compose.ui:ui1.12.1None recorded
androidx.compose.ui:ui-geometry1.12.1None recorded
androidx.compose.ui:ui-graphics1.12.1None recorded
androidx.compose.ui:ui-text1.12.1None recorded
androidx.compose.ui:ui-tooling-preview1.12.1None recorded
androidx.compose.ui:ui-unit1.12.1None recorded
androidx.compose.ui:ui-util1.12.1None recorded
androidx.core:core1.19.1None recorded
androidx.core:core-ktx1.19.1None recorded
androidx.core:core-remoteviews1.1.0None recorded
androidx.core:core-viewtree1.0.0None recorded
androidx.customview:customview1.0.0None recorded
androidx.customview:customview-poolingcontainer1.0.0None recorded
androidx.datastore:datastore1.2.1None recorded
androidx.datastore:datastore-core1.2.1None recorded
androidx.datastore:datastore-preferences1.2.1None recorded
androidx.datastore:datastore-preferences-core1.2.1None recorded
androidx.emoji2:emoji21.4.0None recorded
androidx.exifinterface:exifinterface1.3.6None recorded
androidx.fragment:fragment1.9.1None recorded
androidx.glance:glance1.2.0None recorded
androidx.glance:glance-appwidget1.2.0None recorded
androidx.graphics:graphics-path1.0.1None recorded
androidx.interpolator:interpolator1.0.0None recorded
androidx.lifecycle:lifecycle-livedata2.11.0None recorded
androidx.lifecycle:lifecycle-livedata-core2.11.0None recorded
androidx.lifecycle:lifecycle-livedata-core-ktx2.11.0None recorded
androidx.lifecycle:lifecycle-process2.11.0None recorded
androidx.lifecycle:lifecycle-runtime2.11.0None recorded
androidx.lifecycle:lifecycle-runtime-compose2.11.0None recorded
androidx.lifecycle:lifecycle-runtime-ktx2.11.0None recorded
androidx.lifecycle:lifecycle-service2.11.0None recorded
androidx.lifecycle:lifecycle-viewmodel2.11.0None recorded
androidx.lifecycle:lifecycle-viewmodel-ktx2.11.0None recorded
androidx.lifecycle:lifecycle-viewmodel-savedstate2.11.0None recorded
androidx.loader:loader1.0.0None recorded
androidx.media:media1.7.0None recorded
androidx.navigationevent:navigationevent1.0.0None recorded
androidx.navigationevent:navigationevent-compose1.0.0None recorded
androidx.profileinstaller:profileinstaller1.4.0None recorded
androidx.room:room-runtime2.2.5None recorded
androidx.savedstate:savedstate1.4.0None recorded
androidx.savedstate:savedstate-compose1.4.0None recorded
androidx.savedstate:savedstate-ktx1.4.0None recorded
androidx.sqlite:sqlite2.1.0None recorded
androidx.sqlite:sqlite-framework2.1.0None recorded
androidx.startup:startup-runtime1.1.1None recorded
androidx.tracing:tracing2.0.0None recorded
androidx.versionedparcelable:versionedparcelable1.1.1None recorded
androidx.viewpager:viewpager1.0.0None recorded
androidx.window:window1.5.1None recorded
androidx.window:window-core1.5.1None recorded
androidx.work:work-runtime2.7.1None recorded
androidx.work:work-runtime-ktx2.7.1None recorded
kotlinx:coroutines_android1.11.0None recorded
kotlinx:coroutines_core1.11.0None recorded
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About this app · store information

About this app

Retro cassette tape player for your music. Swap tapes, rewind, make mixtapes.

Content ratingEveryone
Download size7.3 MB
Privacy policyPublished →
Developer siteappxygen.com/foldman/

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
2026-11-15 09:01 UTC1.2.12100A

View changes between the last two scans →

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SARIFFindings CSVCoverage JSONSigned evidenceSBOM

Coverage & gap matrix · Verify signed evidence

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