3Sigma Mobile CRM app

3Sigma CRM · Build 2.3.39

com.threesigma
Rescan appExport / share
Static analysis completeScanned 2026-11-02 15:22 UTC

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

Backend checks: 7 unauthenticated read checks against backends referenced in this build — 4 refused access, 2 answered, 1 could not be determined. Each check describes one request at the recorded scan time and does not establish the backend's current state. An undetermined result is not evidence that the backend is closed.

Overview

Review needed

1 high or critical finding category to review

3Sigma Mobile CRM app (com.threesigma) scored grade F, 0 out of 100, in a static scan of version 2.3.39 on 2026-11-02. It has 1 high or critical finding category of 7, across 11 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 categories711 occurrences
High / critical1Category count
Tracking SDKs8Presence, not observed traffic
Assessment score0 / 100Grade F

Start with these findings

criticalFirebase Storage bucket reference — confirmed publicly readable4 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.

Remediation: Fix a publicly readable Firebase database →

Reference: CWE-200 · CWE-284 · MASVS-STORAGE-2 — what the control asks for, and other apps with the same finding.

Evidence
4 recorded occurrences in the analyzed APK. These are distinct stored findings, not a count of every source match.
Verification
2 historically verified occurrences at the recorded scan time. Current reachability is not established.
Open in all findingsRequest a correction
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.

Remediation: How to fix cleartext (HTTP) traffic in an Android app →

Reference: CWE-319 · MASVS-NETWORK-1 — 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.
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.

Reference: CWE-200 · CWE-284 · 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.
Open in all findingsRequest a correction
View all 7 categories

Privacy

44 requested permissions · 10 flagged high-risk classes.

Review privacy signals →

Build & components

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

Inspect build evidence →
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Findings

7 categories · 11 occurrences. Severity totals describe categories. Expand a finding for interpretation and review guidance.

criticalFirebase Storage bucket reference — confirmed publicly readable4 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.

Remediation: Fix a publicly readable Firebase database →

Reference: CWE-200 · CWE-284 · MASVS-STORAGE-2 — what the control asks for, and other apps with the same finding.

Evidence
4 recorded occurrences in the analyzed APK. These are distinct stored findings, not a count of every source match.
Verification
2 historically verified occurrences 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
  • assets/index.android.bundle

4 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
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.

Remediation: How to fix cleartext (HTTP) traffic in an Android app →

Reference: CWE-319 · MASVS-NETWORK-1 — 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: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.

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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.

Reference: CWE-200 · CWE-284 · 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
Static string match
Representative location
assets/index.android.bundle
Recorded match
Pattern recorded; identifying value redacted.
Detector rule
s3_bucket_url
Recorded file locations
  • assets/index.android.bundle

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
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.

Reference: CWE-359 · MASVS-PRIVACY-1 — 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
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.

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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.

Remediation: Fix a publicly readable Firebase database →

Reference: CWE-200 · CWE-284 · 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
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)2 occurrences

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.

Remediation: How to store secrets in a mobile app (without hardcoding) →

Reference: CWE-798 · MASVS-STORAGE-1 — what the control asks for, and other apps with the same finding.

Evidence
2 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
AIza•••••••• (21–40 chars, redacted)
Detector rule
google_api_key
Recorded file locations
  • resources.arsc

2 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
lowSentry DSN1 occurrence

Interpretation & review guidance

A Sentry DSN. These are client-side by design (embedded in apps to send crash reports), so presence is expected; it only lets someone send events to the project, not read data. Low severity — included for inventory.

Reference: CWE-200 · 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
Static string match
Representative location
assets/index.android.bundle
Recorded match
Pattern recorded; identifying value redacted.
Detector rule
sentry_dsn
Recorded file locations
  • assets/index.android.bundle

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 permissions44
Flagged high-risk classes10
Detected SDKs8

Background location Precise location Approx. location Camera Microphone Contacts Call log Phone state Storage Draw over other apps

Requested permission inventory (44)
  • android.permission.ACCESS_ADSERVICES_AD_ID
  • android.permission.ACCESS_ADSERVICES_ATTRIBUTION
  • android.permission.ACCESS_ADSERVICES_CUSTOM_AUDIENCE
  • android.permission.ACCESS_ADSERVICES_TOPICS
  • android.permission.ACCESS_BACKGROUND_LOCATION
  • android.permission.ACCESS_COARSE_LOCATION
  • android.permission.ACCESS_FINE_LOCATION
  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.ACCESS_NOTIFICATION_POLICY
  • android.permission.ACCESS_WIFI_STATE
  • android.permission.BIND_TELECOM_CONNECTION_SERVICE
  • android.permission.CALL_PHONE
  • android.permission.CAMERA
  • android.permission.DOWNLOAD_WITHOUT_NOTIFICATION
  • android.permission.FOREGROUND_SERVICE
  • android.permission.FOREGROUND_SERVICE_LOCATION
  • android.permission.INTERNET
  • android.permission.NFC
  • android.permission.POST_NOTIFICATIONS
  • android.permission.READ_BASIC_PHONE_STATE
  • android.permission.READ_CALL_LOG
  • android.permission.READ_CONTACTS
  • android.permission.READ_EXTERNAL_STORAGE
  • android.permission.READ_PHONE_NUMBERS
  • android.permission.READ_PHONE_STATE
  • android.permission.READ_PRIVILEGED_PHONE_STATE
  • android.permission.READ_PROFILE
  • android.permission.RECEIVE_BOOT_COMPLETED
  • android.permission.RECORD_AUDIO
  • android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
  • android.permission.SYSTEM_ALERT_WINDOW
  • android.permission.USE_BIOMETRIC
  • android.permission.USE_EXACT_ALARM
  • android.permission.USE_FINGERPRINT
  • android.permission.USE_FULL_SCREEN_INTENT
  • android.permission.VIBRATE
  • android.permission.WAKE_LOCK
  • android.permission.WRITE_CONTACTS
  • com.google.android.c2dm.permission.RECEIVE
  • 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.threesigma.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
  • com.threesigma.permission.C2D_MESSAGE

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

Data the app can access
Call log
Call log
Camera
Camera
Contacts
ContactsContacts (write)
Location
Precise locationApproximate locationBackground location
Microphone
Microphone
Phone
Phone state / numberPhone numberPrivileged phone state
Photos & files
Storage (write)Storage
Persistent identifiers (referenced in code)
Advertising ID (AAID)Android IDDevice ID / IMEIHardware MAC address
Where it can go
Third parties present (5)
Google AdMobGoogle Analytics for FirebaseGoogle Firebase AnalyticsGoogle Tag ManagerMeta / Facebook SDK
  • Precise location, Approximate location, Background 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 5 analytics/ad SDK(s) present — the mechanism used for cross-app profiling.
  • Call log, Camera, Contacts, Microphone, 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: declared vs observed (Play label vs our analysis)

Declared collected
App activityApp info and performanceContactsDevice or other IDsFiles and docsLocationPersonal infoPhotos and videos
Declared shared
App activityApp info and performanceDevice or other IDsFiles and docsPhotos and videos
We observe the app can access
ContactsLocation
✓ No obvious mismatch between the declaration and what we observe.

We compare the developer's Google Play Data Safety declaration with what the binary can actually do (permissions it requests, identifier APIs and third-party SDKs it ships). A mismatch is a capability signal to confirm — a requested permission is not proof of collection.

Trackers & SDKs (8 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
Crash reporting
Google CrashlyticsSentry

Build & components

Scanned build 2.3.39. Store metadata may describe a newer release.

APK SHA-256ec1b3b471dead6b6c39e960f843b3ea95ff9b037bce361b4faab62a6fba82a50

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
2020-11-18 → 2050-11-18
Cert SHA-256
b5:0d:5a:65:e6:94:05:9d:7a:f3:94:be:9e:81:4d:66:94:07:9d:54:e9:4d:0a:57:ba:42:ce:4e:54:d8:37:8c

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

86 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:activity1.9.3None recorded
androidx.activity:activity-ktx1.9.3None 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:autofill1.1.0None recorded
androidx.biometric:biometric1.1.0None recorded
androidx.browser:browser1.4.0None recorded
androidx.camera:camera-camera21.5.0-alpha03None recorded
androidx.camera:camera-core1.5.0-alpha03None recorded
androidx.camera:camera-extensions1.5.0-alpha03None recorded
androidx.camera:camera-lifecycle1.5.0-alpha03None recorded
androidx.camera:camera-video1.5.0-alpha03None recorded
androidx.camera:camera-view1.5.0-alpha03None recorded
androidx.cardview:cardview1.0.0None recorded
androidx.coordinatorlayout:coordinatorlayout1.2.0None recorded
androidx.core:core1.16.0None recorded
androidx.core:core-ktx1.16.0None 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.databinding:viewbinding8.8.0None 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:documentfile1.0.1None 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.exifinterface:exifinterface1.3.6None recorded
androidx.fragment:fragment1.6.2None recorded
androidx.fragment:fragment-ktx1.6.2None 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-livedata2.8.7None recorded
androidx.lifecycle:lifecycle-livedata-core2.8.7None recorded
androidx.lifecycle:lifecycle-livedata-core-ktx2.8.7None recorded
androidx.lifecycle:lifecycle-process2.8.7None recorded
androidx.lifecycle:lifecycle-runtime2.8.7None 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-ktx2.8.7None recorded
androidx.lifecycle:lifecycle-viewmodel-savedstate2.8.7None recorded
androidx.loader:loader1.0.0None recorded
androidx.localbroadcastmanager:localbroadcastmanager1.0.0None recorded
androidx.media:media1.7.0None recorded
androidx.print:print1.0.0None recorded
androidx.privacysandbox.ads:ads-adservices1.1.0-beta11None recorded
androidx.privacysandbox.ads:ads-adservices-java1.1.0-beta11None recorded
androidx.profileinstaller:profileinstaller1.3.1None recorded
androidx.recyclerview:recyclerview1.3.0None 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:slidingpanelayout1.0.0None recorded
androidx.sqlite:sqlite2.3.0None recorded
androidx.sqlite:sqlite-framework2.3.0None recorded
androidx.startup:startup-runtime1.1.1None recorded
androidx.swiperefreshlayout:swiperefreshlayout1.1.0None recorded
androidx.tracing:tracing1.2.0None recorded
androidx.tracing:tracing-ktx1.2.0None 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:viewpager21.0.0None recorded
androidx.viewpager:viewpager1.0.0None recorded
androidx.webkit:webkit1.14.0None recorded
androidx.work:work-runtime2.9.1None recorded
com.google.android.material:material1.12.0None recorded
com.google.dagger:dagger2.51None recorded
com.squareup.okhttp3:okhttp4.12.0None recorded
kotlinx:coroutines_android1.9.0None recorded
kotlinx:coroutines_core1.9.0None recorded
kotlinx:coroutines_play_services1.9.0None recorded
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About this app · store information

About this app

Automate lead syncing, follow-ups and automation with WhatsApp API

Content ratingEveryone
Download size71.2 MB
Privacy policyPublished →
Developer sitewww.3sigmacrm.com

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
2026-11-02 15:22 UTC2.3.390F

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

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