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Stardust Period Tracker

Stardust App Inc · Build 5.30.0

com.stardust.app
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Static analysis completeScanned 2026-10-10 14:31 UTC

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

Overview

Review needed

1 high or critical finding category to review

Stardust Period Tracker (com.stardust.app) scored grade D, 43 out of 100, in a static scan of version 5.30.0 on 2026-10-10. It has 1 high or critical finding among 3 finding categories across 3 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. 8 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 / critical1Category count
Tracking SDKs8Presence, not observed traffic
Assessment score43 / 100Grade D

Start with these findings

criticalFirebase Storage bucket reference — confirmed publicly readable1 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
1 historically verified occurrence at the recorded scan time. Current reachability is not established.
Open in all findingsRequest 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.
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
View all 3 categories

Privacy

41 requested permissions · 2 flagged high-risk classes.

Review privacy signals →

Build & components

129 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.

criticalFirebase Storage bucket reference — confirmed publicly readable1 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
1 historically verified occurrence at the recorded scan time. 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

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
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.

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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 permissions41
Flagged high-risk classes2
Detected SDKs8

Camera Storage

Requested permission inventory (41)
  • android.permission.ACCESS_ADSERVICES_AD_ID
  • android.permission.ACCESS_ADSERVICES_ATTRIBUTION
  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.ACCESS_WIFI_STATE
  • android.permission.CAMERA
  • android.permission.FOREGROUND_SERVICE
  • android.permission.INTERNET
  • android.permission.POST_NOTIFICATIONS
  • android.permission.READ_APP_BADGE
  • android.permission.READ_EXTERNAL_STORAGE
  • android.permission.RECEIVE_BOOT_COMPLETED
  • android.permission.USE_BIOMETRIC
  • android.permission.USE_FINGERPRINT
  • android.permission.VIBRATE
  • android.permission.WAKE_LOCK
  • android.permission.health.READ_BASAL_BODY_TEMPERATURE
  • android.permission.health.READ_MENSTRUATION
  • android.permission.health.READ_SLEEP
  • com.anddoes.launcher.permission.UPDATE_COUNT
  • com.android.vending.BILLING
  • com.google.android.c2dm.permission.RECEIVE
  • com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
  • com.google.android.gms.permission.AD_ID
  • com.htc.launcher.permission.READ_SETTINGS
  • com.htc.launcher.permission.UPDATE_SHORTCUT
  • com.huawei.android.launcher.permission.CHANGE_BADGE
  • com.huawei.android.launcher.permission.READ_SETTINGS
  • com.huawei.android.launcher.permission.WRITE_SETTINGS
  • com.huawei.appmarket.service.commondata.permission.GET_COMMON_DATA
  • com.majeur.launcher.permission.UPDATE_BADGE
  • com.oppo.launcher.permission.READ_SETTINGS
  • com.oppo.launcher.permission.WRITE_SETTINGS
  • com.samsung.android.mapsagent.permission.READ_APP_INFO
  • com.sec.android.provider.badge.permission.READ
  • com.sec.android.provider.badge.permission.WRITE
  • com.sonyericsson.home.permission.BROADCAST_BADGE
  • com.sonymobile.home.permission.PROVIDER_INSERT_BADGE
  • com.stardust.app.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
  • com.stardust.app.permission.C2D_MESSAGE
  • me.everything.badger.permission.BADGE_COUNT_READ
  • me.everything.badger.permission.BADGE_COUNT_WRITE

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

Data the app can access
Camera
Camera
Photos & files
Storage
Persistent identifiers (referenced in code)
Advertising ID (AAID)Android IDDevice ID / IMEI
Where it can go
Third parties present (6)
Google AdMobGoogle Analytics for FirebaseGoogle Firebase AnalyticsGoogle Tag ManagerAppsFlyerOneSignal
  • Persistent-identifier APIs referenced in code (Advertising ID (AAID), Android ID, Device ID / IMEI) with 6 analytics/ad SDK(s) present — the mechanism used for cross-app profiling.
  • Camera, 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 (8 detected · privacy signal, not part of the grade)

Advertising
Google AdMob
Analytics
Google Analytics for FirebaseGoogle Firebase AnalyticsGoogle Tag Manager
Attribution
AppsFlyer
Consent
IAB TCF
Crash reporting
Google Crashlytics
Push/Analytics
OneSignal

Build & components

Scanned build 5.30.0. Store metadata may describe a newer release.

APK SHA-256b85380d4bba8af176605fd79e1689bd4189d1f06a93d1128bdcee56782f7e31b

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

Signer
Google Inc. self-signed
Scheme
V3V2
Key
RSA 4096-bit
Algorithm
sha256WithRSA
Validity
2022-06-27 → 2052-06-27
Cert SHA-256
5d:bc:cd:0c:df:4b:3a:10:a9:66:93:a8:3f:0d:e9:6e:c2:ad:64:6f:98:32:5f:13:83:09:08:30:dd:a7:8d:9a

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

129 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.biometric:biometric1.1.0None recorded
androidx.browser:browser1.8.0None recorded
androidx.cardview:cardview1.0.0None recorded
androidx.compose.animation:animation1.8.1None recorded
androidx.compose.animation:animation-core1.8.1None recorded
androidx.compose.foundation:foundation1.8.1None recorded
androidx.compose.foundation:foundation-layout1.8.1None recorded
androidx.compose.material3:material31.3.1None recorded
androidx.compose.material:material1.7.8None recorded
androidx.compose.material:material-icons-core1.7.6None recorded
androidx.compose.material:material-ripple1.7.8None recorded
androidx.compose.runtime:runtime1.8.1None recorded
androidx.compose.runtime:runtime-saveable1.8.1None recorded
androidx.compose.ui:ui1.8.1None recorded
androidx.compose.ui:ui-geometry1.8.1None recorded
androidx.compose.ui:ui-graphics1.8.1None recorded
androidx.compose.ui:ui-text1.8.1None recorded
androidx.compose.ui:ui-tooling-preview1.8.1None recorded
androidx.compose.ui:ui-unit1.8.1None recorded
androidx.compose.ui:ui-util1.8.1None recorded
androidx.compose.ui:ui-viewbinding1.8.1None recorded
androidx.coordinatorlayout:coordinatorlayout1.2.0None 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:credentials1.5.0None recorded
androidx.credentials:credentials-play-services-auth1.5.0None recorded
androidx.cursoradapter:cursoradapter1.0.0None recorded
androidx.customview:customview1.1.0None recorded
androidx.customview:customview-poolingcontainer1.0.0None recorded
androidx.databinding:baseAdapters8.9.2None recorded
androidx.databinding:databindingKtx8.9.2None recorded
androidx.databinding:library8.9.2None recorded
androidx.databinding:viewbinding8.9.2None 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:drawerlayout1.1.1None recorded
androidx.dynamicanimation:dynamicanimation1.0.0None recorded
androidx.emoji2:emoji21.4.0None recorded
androidx.emoji2:emoji2-views-helper1.4.0None recorded
androidx.exifinterface:exifinterface1.3.7None recorded
androidx.fragment:fragment1.8.6None recorded
androidx.fragment:fragment-ktx1.8.6None recorded
androidx.glance:glance1.1.1None recorded
androidx.glance:glance-appwidget1.1.1None recorded
androidx.glance:glance-material31.1.1None recorded
androidx.graphics:graphics-path1.0.1None recorded
androidx.health.connect:connect-client1.1.0-alpha07None recorded
androidx.hilt:hilt-navigation1.2.0None recorded
androidx.hilt:hilt-navigation-compose1.2.0None recorded
androidx.hilt:hilt-work1.3.0None 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-livedata2.8.7None recorded
androidx.lifecycle:lifecycle-livedata-core2.8.7None recorded
androidx.lifecycle:lifecycle-livedata-core-ktx2.8.7None recorded
androidx.lifecycle:lifecycle-livedata-ktx2.8.7None recorded
androidx.lifecycle:lifecycle-process2.8.7None recorded
androidx.lifecycle:lifecycle-runtime2.8.7None recorded
androidx.lifecycle:lifecycle-runtime-compose2.8.7None recorded
androidx.lifecycle:lifecycle-runtime-ktx2.8.7None recorded
androidx.lifecycle:lifecycle-service2.8.7None recorded
androidx.lifecycle:lifecycle-viewmodel2.8.7None recorded
androidx.lifecycle:lifecycle-viewmodel-compose2.8.7None recorded
androidx.lifecycle:lifecycle-viewmodel-ktx2.8.7None recorded
androidx.lifecycle:lifecycle-viewmodel-savedstate2.8.7None recorded
androidx.loader:loader1.1.0None recorded
androidx.localbroadcastmanager:localbroadcastmanager1.0.0None recorded
androidx.media:media1.0.0None recorded
androidx.navigation:navigation-common2.7.7None recorded
androidx.navigation:navigation-common-ktx2.7.7None recorded
androidx.navigation:navigation-compose2.7.7None recorded
androidx.navigation:navigation-fragment2.7.7None recorded
androidx.navigation:navigation-fragment-ktx2.7.7None recorded
androidx.navigation:navigation-runtime2.7.7None recorded
androidx.navigation:navigation-runtime-ktx2.7.7None recorded
androidx.navigation:navigation-ui2.7.7None recorded
androidx.navigation:navigation-ui-ktx2.7.7None 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:recyclerview1.3.2None recorded
androidx.room:room-ktx2.7.2None recorded
androidx.room:room-runtime2.7.2None recorded
androidx.savedstate:savedstate1.2.1None recorded
androidx.savedstate:savedstate-ktx1.2.1None recorded
androidx.slidingpanelayout:slidingpanelayout1.2.0None recorded
androidx.sqlite:sqlite2.5.1None recorded
androidx.sqlite:sqlite-framework2.5.1None recorded
androidx.startup:startup-runtime1.1.1None recorded
androidx.swiperefreshlayout:swiperefreshlayout1.2.0-alpha01None 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:viewpager21.1.0-beta02None recorded
androidx.viewpager:viewpager1.0.0None recorded
androidx.webkit:webkit1.13.0None recorded
androidx.window:window1.0.0None recorded
androidx.work:work-runtime2.9.1None recorded
androidx.work:work-runtime-ktx2.9.1None recorded
com.google.android.material:material1.12.0None recorded
com.google.dagger:dagger2.57.2None recorded
com.google.dagger:dagger-lint-aar2.56.2None recorded
com.google.dagger:hilt-android2.56.2None recorded
com.google.dagger:hilt-core2.56.2None recorded
com.squareup.okhttp3:okhttp5.0.0None recorded
kotlinx:coroutines_android1.10.1None recorded
kotlinx:coroutines_core1.10.1None recorded
kotlinx:coroutines_guava1.10.1None recorded
kotlinx:coroutines_play_services1.10.1None recorded
kotlinx:coroutines_slf4j1.10.1None recorded
Export SBOM
About this app · store information

About this app

Period tracker built by women. Track your menstrual cycle, ovulation & pregnancy

Content ratingEveryone
Download size66.0 MB
Privacy policyPublished →
Developer sitestardust.app/

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
2026-10-10 14:31 UTC5.30.043D
2026-10-03 11:29 UTC5.30.043D
2026-09-26 11:25 UTC5.29.091A
2026-09-18 05:12 UTC5.29.091A
2026-09-07 21:22 UTC5.27.037D

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

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API users can request authenticated, scan-specific exports at /v1/scans/ea300978-8221-447e-86d5-a0b57e8e99a8/findings.sarif (also coverage.json and proof.json).

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