Tuner & Metronome
Soundcorset Tuner · Build 8.23
Static checks identify review items, not a guarantee of safety.
Overview
3 finding categories to review
Tuner & Metronome (com.soundcorset.client.android) scored grade A, 97 out of 100, in a static scan of version 8.23 on 2026-10-12. It has no high or critical findings, and 3 lower-severity finding categories across 5 occurrences. 11 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
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.
- 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.
lowFirebase Storage bucket reference3 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.
- Evidence
- 3 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.
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.
Build & components
68 components recorded. Certificate parsing does not validate APK signature integrity.
Inspect build evidence →Findings
3 categories · 5 occurrences. Severity totals describe categories. Expand a finding for interpretation and review guidance.
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.
- 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.
lowFirebase Storage bucket reference3 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.
- Evidence
- 3 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
Pattern recorded; identifying value redacted.- Detector rule
firebase_storage_bucket- Recorded file locations
resources.arsc
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.
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
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.
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Privacy signals
Capabilities and bundled software do not prove that data was collected or transmitted.
Camera Microphone Draw over other apps
Requested permission inventory (27)
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 8 analytics/ad SDK(s) present — the mechanism used for cross-app profiling.
- Camera, Microphone, 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 (11 detected · privacy signal, not part of the grade)
Build & components
Scanned build 8.23. Store metadata may describe a newer release.
4049acdaaa9bd65c8b0b3c34684258ebf57788dd2282e07eb17effbc3d67a277Signing certificate (who signed this build — factual, not part of the grade)
5c:d1:1f:26:67:b3:7f:7b:33:61:e0:34:63:f8:f2:ce:9c:cd:ed:ec:e3:37:86:18:5e:9c:8a:2f:1c:c8:97:3dThe certificate fingerprint identifies the parsed signing certificate. Knowing this public fingerprint does not establish ownership or validate the APK signature.
Component inventory
68 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 | 1.9.0 | None recorded |
androidx.annotation:annotation-experimental | 1.4.1 | None recorded |
androidx.appcompat:appcompat | 1.8.0 | None recorded |
androidx.appcompat:appcompat-resources | 1.8.0 | None recorded |
androidx.asynclayoutinflater:asynclayoutinflater | 1.0.0 | None recorded |
androidx.biometric:biometric | 1.1.0 | None recorded |
androidx.browser:browser | 1.9.0 | None recorded |
androidx.cardview:cardview | 1.0.0 | None recorded |
androidx.coordinatorlayout:coordinatorlayout | 1.0.0 | None recorded |
androidx.core:core | 1.15.0 | None recorded |
androidx.core:core-ktx | 1.15.0 | None recorded |
androidx.core:core-splashscreen | 1.2.0 | None recorded |
androidx.core:core-viewtree | 1.0.0 | None recorded |
androidx.credentials:credentials | 1.6.0 | None recorded |
androidx.credentials:credentials-play-services-auth | 1.6.0 | None recorded |
androidx.cursoradapter:cursoradapter | 1.0.0 | None recorded |
androidx.customview:customview | 1.0.0 | None recorded |
androidx.customview:customview-poolingcontainer | 1.0.0 | None recorded |
androidx.datastore:datastore | 1.1.7 | None recorded |
androidx.datastore:datastore-core | 1.1.7 | None recorded |
androidx.datastore:datastore-preferences | 1.1.7 | None recorded |
androidx.datastore:datastore-preferences-core | 1.1.7 | None recorded |
androidx.documentfile:documentfile | 1.0.0 | None recorded |
androidx.drawerlayout:drawerlayout | 1.0.0 | None recorded |
androidx.emoji2:emoji2 | 1.3.0 | None recorded |
androidx.emoji2:emoji2-views-helper | 1.3.0 | None recorded |
androidx.exifinterface:exifinterface | 1.3.6 | None recorded |
androidx.fragment:fragment | 1.6.1 | 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.lifecycle:lifecycle-livedata | 2.11.0 | None recorded |
androidx.lifecycle:lifecycle-livedata-core | 2.11.0 | None recorded |
androidx.lifecycle:lifecycle-livedata-core-ktx | 2.11.0 | None recorded |
androidx.lifecycle:lifecycle-process | 2.11.0 | None recorded |
androidx.lifecycle:lifecycle-runtime | 2.11.0 | None recorded |
androidx.lifecycle:lifecycle-service | 2.11.0 | None recorded |
androidx.lifecycle:lifecycle-viewmodel | 2.11.0 | None recorded |
androidx.lifecycle:lifecycle-viewmodel-savedstate | 2.11.0 | None recorded |
androidx.loader:loader | 1.1.0 | 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 | 1.1.0-beta11 | None recorded |
androidx.privacysandbox.ads:ads-adservices-java | 1.1.0-beta11 | None recorded |
androidx.profileinstaller:profileinstaller | 1.4.0 | None recorded |
androidx.recyclerview:recyclerview | 1.4.0 | None recorded |
androidx.room:room-runtime | 2.7.0 | None recorded |
androidx.savedstate:savedstate | 1.4.0 | None recorded |
androidx.slidingpanelayout:slidingpanelayout | 1.0.0 | None recorded |
androidx.sqlite:sqlite | 2.5.0 | None recorded |
androidx.sqlite:sqlite-framework | 2.5.0 | None recorded |
androidx.startup:startup-runtime | 1.1.1 | None recorded |
androidx.swiperefreshlayout:swiperefreshlayout | 1.0.0 | None recorded |
androidx.tracing:tracing | 1.2.0 | None recorded |
androidx.tracing:tracing-ktx | 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.viewpager:viewpager | 1.0.0 | None recorded |
androidx.webkit:webkit | 1.12.1 | None recorded |
androidx.work:work-runtime | 2.11.2 | None recorded |
com.google.dagger:dagger | 2.57.2 | None recorded |
com.squareup.okhttp3:okhttp | 4.12.0 | None recorded |
kotlinx:coroutines_android | 1.10.1 | None recorded |
kotlinx:coroutines_core | 1.10.1 | None recorded |
kotlinx:coroutines_play_services | 1.10.1 | None recorded |
About this app · store information
About this app
One app for music practice: tuner, metronome, sheet music, recording, AI tutor
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 |
|---|---|---|---|
| 2026-10-12 14:14 UTC | 8.23 | 97 | A |
| 2026-10-05 14:11 UTC | 8.23 | 97 | A |
| 2026-09-28 14:10 UTC | 8.23 | 97 | A |
| 2026-09-15 16:41 UTC | 8.22 | 91 | A |
| 2026-09-07 17:31 UTC | 8.21 | 91 | A |
Export & share
Exports describe the recorded assessment. Signed evidence proves origin and integrity, not completeness or safety.
Coverage & gap matrix · Verify signed evidence
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API users can request authenticated, scan-specific exports at /v1/scans/1a6c96c7-65f6-416a-8b23-8eeaf89e7b1e/findings.sarif (also coverage.json and proof.json).
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