Browse appsScan report

The Metronome by Soundbrenner

Soundbrenner · Build 1.33.2

com.soundbrenner.pulse
Rescan appExport / share
Static analysis completeScanned 2026-09-30 04:14 UTC

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

Overview

Analysis recorded

6 finding categories to review

The Metronome by Soundbrenner (com.soundbrenner.pulse) scored grade B, 84 out of 100, in a static scan of version 1.33.2 on 2026-09-30. It has no high or critical findings, and 6 lower-severity finding categories across 6 occurrences. 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.

Finding categories66 occurrences
High / critical0Category count
Tracking SDKs5Presence, not observed traffic
Assessment score84 / 100Grade B

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
mediumShort signing key (RSA 1024-bit)1 occurrence

Interpretation & review guidance

The signing key is shorter than the modern 2048-bit RSA minimum. Short keys are cryptographically weaker; a release should re-key to at least RSA-2048 (or an EC key).

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
lowAmazon S3 bucket reference1 occurrence

Interpretation & review guidance

A reference to an Amazon S3 bucket. Using cloud storage is normal — the risk exists only if the bucket allows anonymous listing/read, which requires a separate authorized assessment.

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 6 categories

Privacy

25 requested permissions · 2 flagged high-risk classes.

Review privacy signals →

Build & components

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

Inspect build evidence →
Sign in to watchCompare with another app

Findings

6 categories · 6 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.

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
mediumShort signing key (RSA 1024-bit)1 occurrence

Interpretation & review guidance

The signing key is shorter than the modern 2048-bit RSA minimum. Short keys are cryptographically weaker; a release should re-key to at least RSA-2048 (or an EC key).

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
Signing metadata
Representative location
META-INF/signing:key
Recorded match
RSA-1024
Detector rule
signing
Recorded file locations
  • META-INF/signing:key

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
lowAmazon S3 bucket reference1 occurrence

Interpretation & review guidance

A reference to an Amazon S3 bucket. Using cloud storage is normal — the risk exists only if the bucket allows anonymous listing/read, which requires a separate authorized assessment.

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
classes7.dex
Recorded match
Pattern recorded; identifying value redacted.
Detector rule
s3_bucket_url
Recorded file locations
  • classes7.dex

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
lowBackground location access with advertising SDKs present1 occurrence

Interpretation & review guidance

The app can access location in the background (even when closed) and also ships advertising/attribution SDKs. Background location is a heightened-scrutiny area for Google Play and privacy regulators; confirm it is essential and disclosed, and that location isn't shared with ad networks.

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 privacy indicators
Representative location
pii:bgloc
Recorded match
background location + ad SDKs
Detector rule
pii
Recorded file locations
  • pii:bgloc

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
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 tools

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)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 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 permissions25
Flagged high-risk classes2
Detected SDKs5

Camera Phone state

Requested permission inventory (25)
  • android.permission.ACCESS_ADSERVICES_AD_ID
  • android.permission.ACCESS_ADSERVICES_ATTRIBUTION
  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.BLUETOOTH_ADVERTISE
  • android.permission.BLUETOOTH_CONNECT
  • android.permission.BLUETOOTH_SCAN
  • android.permission.CAMERA
  • android.permission.CHANGE_NETWORK_STATE
  • android.permission.FLASHLIGHT
  • android.permission.FOREGROUND_SERVICE
  • android.permission.FOREGROUND_SERVICE_CONNECTED_DEVICE
  • android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK
  • android.permission.INTERNET
  • android.permission.POST_NOTIFICATIONS
  • android.permission.READ_MEDIA_IMAGES
  • android.permission.READ_MEDIA_VISUAL_USER_SELECTED
  • android.permission.READ_PHONE_STATE
  • android.permission.RECEIVE_BOOT_COMPLETED
  • android.permission.VIBRATE
  • android.permission.WAKE_LOCK
  • android.permission.health.WRITE_STEPS
  • com.android.vending.BILLING
  • com.google.android.c2dm.permission.RECEIVE
  • com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
  • com.soundbrenner.pulse.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

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

Data the app can access
Camera
Camera
Location
Background locationPrecise location
Phone
Phone state / number
Photos & files
Storage (write)StoragePhotos
Persistent identifiers (referenced in code)
Advertising ID (AAID)Android IDDevice ID / IMEIHardware MAC address
Where it can go
Third parties present (4)
Google AdMobGoogle Analytics for FirebaseGoogle Firebase AnalyticsGoogle Tag Manager
  • Background location, Precise location requested while 1 ad/attribution SDK(s) are present (Google AdMob) — location commonly feeds ad targeting.
  • Persistent-identifier APIs referenced in code (Advertising ID (AAID), Android ID, Device ID / IMEI +1 more) with 4 analytics/ad SDK(s) present — the mechanism used for cross-app profiling.
  • Camera, Phone, 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 (5 detected · privacy signal, not part of the grade)

Advertising
Google AdMob
Analytics
Google Analytics for FirebaseGoogle Firebase AnalyticsGoogle Tag Manager
Crash reporting
Google Crashlytics

Build & components

Scanned build 1.33.2. Store metadata may describe a newer release.

APK SHA-256954fa01415c84dd0e6726396f500ffaed0f0e383e24c166ab13ca6178ee427bf

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

Signer
Soundbrenner Limited self-signed
Scheme
V3V2
Key
RSA 1024-bit
Algorithm
sha1WithRSA
Validity
2015-11-27 → 2040-11-20
Cert SHA-256
bf:1e:98:66:d7:56:a6:ff:8c:1e:6f:99:fd:e4:00:c1:f8:6f:ad:d8:b6:29:db:4e:0e:cb:9f:11:29:4d:b2: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

125 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-compose1.10.1None recorded
androidx.activity:activity-ktx1.10.1None recorded
androidx.annotation:annotation-experimental1.4.1None recorded
androidx.appcompat:appcompat1.7.0None recorded
androidx.appcompat:appcompat-resources1.7.0None recorded
androidx.asynclayoutinflater:asynclayoutinflater1.0.0None recorded
androidx.autofill:autofill1.0.0None recorded
androidx.browser:browser1.4.0None recorded
androidx.cardview:cardview1.0.0None recorded
androidx.compose.animation:animation1.7.4None recorded
androidx.compose.animation:animation-core1.7.4None recorded
androidx.compose.foundation:foundation1.7.4None recorded
androidx.compose.foundation:foundation-layout1.7.4None recorded
androidx.compose.material3:material31.3.0None recorded
androidx.compose.material:material1.7.4None recorded
androidx.compose.material:material-icons-core1.7.4None recorded
androidx.compose.material:material-ripple1.7.4None recorded
androidx.compose.runtime:runtime1.7.4None recorded
androidx.compose.runtime:runtime-livedata1.7.4None recorded
androidx.compose.runtime:runtime-saveable1.7.4None recorded
androidx.compose.ui:ui1.7.4None recorded
androidx.compose.ui:ui-geometry1.7.4None recorded
androidx.compose.ui:ui-graphics1.7.4None recorded
androidx.compose.ui:ui-text1.7.4None recorded
androidx.compose.ui:ui-tooling1.7.4None recorded
androidx.compose.ui:ui-tooling-data1.7.4None recorded
androidx.compose.ui:ui-tooling-preview1.7.4None recorded
androidx.compose.ui:ui-unit1.7.4None recorded
androidx.compose.ui:ui-util1.7.4None recorded
androidx.constraintlayout:constraintlayout2.2.0None recorded
androidx.coordinatorlayout:coordinatorlayout1.1.0None recorded
androidx.core:core1.16.0None recorded
androidx.core:core-ktx1.16.0None recorded
androidx.core:core-splashscreen1.0.1None recorded
androidx.core:core-viewtree1.0.0None recorded
androidx.credentials:credentials1.3.0None recorded
androidx.credentials:credentials-play-services-auth1.3.0None recorded
androidx.cursoradapter:cursoradapter1.0.0None recorded
androidx.customview:customview1.1.0None recorded
androidx.customview:customview-poolingcontainer1.0.0None recorded
androidx.databinding:baseAdapters8.13.0None recorded
androidx.databinding:databindingKtx8.13.0None recorded
androidx.databinding:library8.13.0None recorded
androidx.databinding:viewbinding8.13.0None recorded
androidx.datastore:datastore1.2.0None recorded
androidx.datastore:datastore-core1.2.0None recorded
androidx.datastore:datastore-preferences1.2.0None recorded
androidx.datastore:datastore-preferences-core1.2.0None recorded
androidx.documentfile:documentfile1.0.0None recorded
androidx.drawerlayout:drawerlayout1.1.1None recorded
androidx.dynamicanimation:dynamicanimation1.0.0None recorded
androidx.emoji2:emoji21.3.0None recorded
androidx.emoji2:emoji2-views-helper1.3.0None recorded
androidx.emoji:emoji1.1.0None recorded
androidx.emoji:emoji-appcompat1.1.0None recorded
androidx.exifinterface:exifinterface1.3.7None recorded
androidx.fragment:fragment1.6.2None recorded
androidx.fragment:fragment-ktx1.6.2None recorded
androidx.graphics:graphics-path1.0.1None recorded
androidx.health.connect:connect-client1.1.0-alpha07None 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-extensions2.2.0None recorded
androidx.lifecycle:lifecycle-livedata2.8.5None recorded
androidx.lifecycle:lifecycle-livedata-core2.8.5None recorded
androidx.lifecycle:lifecycle-livedata-core-ktx2.8.5None recorded
androidx.lifecycle:lifecycle-process2.8.5None recorded
androidx.lifecycle:lifecycle-runtime2.8.5None recorded
androidx.lifecycle:lifecycle-runtime-compose2.8.5None recorded
androidx.lifecycle:lifecycle-runtime-ktx2.8.5None recorded
androidx.lifecycle:lifecycle-service2.8.5None recorded
androidx.lifecycle:lifecycle-viewmodel2.8.5None recorded
androidx.lifecycle:lifecycle-viewmodel-compose2.8.5None recorded
androidx.lifecycle:lifecycle-viewmodel-ktx2.8.5None recorded
androidx.lifecycle:lifecycle-viewmodel-savedstate2.8.5None recorded
androidx.loader:loader1.1.0None recorded
androidx.localbroadcastmanager:localbroadcastmanager1.1.0None recorded
androidx.media:media1.0.0None recorded
androidx.navigation:navigation-common2.8.7None recorded
androidx.navigation:navigation-common-ktx2.8.7None recorded
androidx.navigation:navigation-compose2.8.7None recorded
androidx.navigation:navigation-fragment2.8.7None recorded
androidx.navigation:navigation-fragment-ktx2.8.7None recorded
androidx.navigation:navigation-runtime2.8.7None recorded
androidx.navigation:navigation-runtime-ktx2.8.7None recorded
androidx.navigation:navigation-ui2.8.7None recorded
androidx.navigation:navigation-ui-ktx2.8.7None 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:recyclerview1.3.1None recorded
androidx.room:room-ktx2.5.0None recorded
androidx.room:room-runtime2.5.0None recorded
androidx.savedstate:savedstate1.2.1None recorded
androidx.savedstate:savedstate-ktx1.2.1None recorded
androidx.slidingpanelayout:slidingpanelayout1.2.0None recorded
androidx.sqlite:sqlite2.3.0None recorded
androidx.sqlite:sqlite-framework2.3.0None recorded
androidx.startup:startup-runtime1.1.1None recorded
androidx.swiperefreshlayout:swiperefreshlayout1.0.0None recorded
androidx.tracing:tracing1.2.0None recorded
androidx.transition:transition1.5.0None recorded
androidx.vectordrawable:vectordrawable1.1.0None recorded
androidx.vectordrawable:vectordrawable-animated1.1.0None recorded
androidx.versionedparcelable:versionedparcelable1.1.1None recorded
androidx.viewpager2:viewpager21.1.0None recorded
androidx.viewpager:viewpager1.0.0None recorded
androidx.window:window1.4.0None recorded
androidx.window:window-core1.4.0None recorded
androidx.window:window-java1.4.0None recorded
androidx.window:window-rxjava21.4.0None recorded
androidx.work:work-runtime2.9.0None recorded
androidx.work:work-runtime-ktx2.9.0None recorded
com.google.android.material:material1.12.0None recorded
com.squareup.okhttp3:okhttp4.12.0None recorded
kotlinx:coroutines_android1.9.0None recorded
kotlinx:coroutines_core1.9.0None recorded
kotlinx:coroutines_guava1.9.0None recorded
kotlinx:coroutines_play_services1.9.0None recorded
kotlinx:coroutines_reactive1.9.0None recorded
kotlinx:coroutines_rx21.9.0None recorded
Export SBOM
About this app · store information

About this app

Intuitive metronome and practice tracker — upgrade your music practice today!

Content ratingEveryone
Download size136.8 MB
Privacy policyPublished →
Developer sitewww.soundbrenner.com

Screenshots

App screenshotApp 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
2026-09-30 04:14 UTC1.33.284B
2026-09-19 15:27 UTC1.33.277B
2026-09-12 03:45 UTC1.33.277B
2026-09-09 17:10 UTC1.33.2Not 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

Embed the latest grade

Embed this grade

The badge reads the latest recorded grade each time it is loaded, and links back to the full report so a reader can see the build it covers and what the scan could not see.

apk-scanner.com exposure grade
Markdown
[![apk-scanner.com exposure grade](https://apk-scanner.com/app/com.soundbrenner.pulse/badge.svg)](https://apk-scanner.com/app/com.soundbrenner.pulse)
HTML
<a href="https://apk-scanner.com/app/com.soundbrenner.pulse"><img src="https://apk-scanner.com/app/com.soundbrenner.pulse/badge.svg" alt="apk-scanner.com exposure grade" height="20"></a>

Grades can move when a new version is scanned or when a detector is corrected. If you would rather publish a grade that cannot change under you, link a signed Proof Capsule instead.

API users can request authenticated, scan-specific exports at /v1/scans/98e820fa-5782-43db-ba8e-7c8070d0e942/findings.sarif (also coverage.json and proof.json).

Request a correction or removal · How to interpret a scan · Browse apps