Outer Heaven Jiu Jitsu

Brian Mahecha · Build 12.11.0

com.mahechabjj.mahechabjj
Rescan appExport / share
Static analysis completeScanned 2026-10-25 09:30 UTC

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

Overview

Analysis recorded

3 finding categories to review

Outer Heaven Jiu Jitsu (com.mahechabjj.mahechabjj) scored grade A, 97 out of 100, in a static scan of version 12.11.0 on 2026-10-25. It has no high or critical findings, and 3 lower-severity finding categories across 5 occurrences. 6 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 categories35 occurrences
High / critical0Category count
Tracking SDKs6Presence, not observed traffic
Assessment score97 / 100Grade A

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.

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.
Open in all findingsRequest a correction
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.

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
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.
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.

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
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

12 requested permissions · 0 flagged high-risk classes.

Review privacy signals →

Build & components

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

Inspect build evidence →
Sign in to watchCompare with another app

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.

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
  • _split_config.arm64_v8a/lib/arm64-v8a/libapp.so

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 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.

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
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
  • _split_config.arm64_v8a/lib/arm64-v8a/libapp.so

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 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.

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
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
  • _split_config.arm64_v8a/lib/arm64-v8a/libapp.so

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 permissions12
Flagged high-risk classes0
Detected SDKs6
Requested permission inventory (12)
  • android.permission.ACCESS_ADSERVICES_AD_ID
  • android.permission.ACCESS_ADSERVICES_ATTRIBUTION
  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.INTERNET
  • android.permission.POST_NOTIFICATIONS
  • android.permission.WAKE_LOCK
  • 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.google.android.providers.gsf.permission.READ_GSERVICES
  • com.mahechabjj.mahechabjj.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

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

Data the app can access
No sensitive runtime permissions requested.
Persistent identifiers (referenced in code)
Advertising ID (AAID)Android IDDevice ID / IMEI
Where it can go
Third parties present (4)
Google AdMobGoogle Analytics for FirebaseGoogle Firebase AnalyticsGoogle Tag Manager
  • Persistent-identifier APIs referenced in code (Advertising ID (AAID), Android ID, Device ID / IMEI) with 4 analytics/ad SDK(s) present — the mechanism used for cross-app profiling.

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 (6 detected · privacy signal, not part of the grade)

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

Build & components

Scanned build 12.11.0. Store metadata may describe a newer release.

APK SHA-2566ec68da5be60a5c43fa4956c710955d6a0baac2d4e0463a58c7b7c9f447f182a

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
2020-06-03 → 2050-06-03
Cert SHA-256
16:2a:3d:74:21:52:50:4b:27:8b:96:58:fd:d5:18:ef:d6:e0:cf:b0:90:5b:41:a7:93:08:01:c7:0b:68:f1:2c

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

95 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:activity1.12.4None recorded
androidx.activity:activity-compose1.12.4None recorded
androidx.activity:activity-ktx1.12.4None recorded
androidx.annotation:annotation-experimental1.4.1None recorded
androidx.appcompat:appcompat1.6.1None recorded
androidx.appcompat:appcompat-resources1.6.1None recorded
androidx.asynclayoutinflater:asynclayoutinflater1.0.0None recorded
androidx.autofill:autofill1.0.0None recorded
androidx.browser:browser1.9.0None recorded
androidx.compose.animation:animation1.7.2None recorded
androidx.compose.animation:animation-core1.7.2None recorded
androidx.compose.foundation:foundation1.7.2None recorded
androidx.compose.foundation:foundation-layout1.7.2None recorded
androidx.compose.material3.adaptive:adaptive1.0.0None recorded
androidx.compose.material3:material31.3.0None recorded
androidx.compose.material:material1.7.0None recorded
androidx.compose.material:material-icons-core1.7.0None recorded
androidx.compose.material:material-ripple1.7.0None recorded
androidx.compose.runtime:runtime1.9.2None recorded
androidx.compose.runtime:runtime-annotation1.9.2None recorded
androidx.compose.runtime:runtime-saveable1.9.2None recorded
androidx.compose.ui:ui1.9.2None recorded
androidx.compose.ui:ui-geometry1.9.2None recorded
androidx.compose.ui:ui-graphics1.9.2None recorded
androidx.compose.ui:ui-text1.9.2None recorded
androidx.compose.ui:ui-text-google-fonts1.9.2None recorded
androidx.compose.ui:ui-tooling-preview1.9.2None recorded
androidx.compose.ui:ui-unit1.9.2None recorded
androidx.compose.ui:ui-util1.9.2None recorded
androidx.constraintlayout:constraintlayout-compose1.1.0None recorded
androidx.coordinatorlayout:coordinatorlayout1.0.0None recorded
androidx.core:core1.17.0None recorded
androidx.core:core-ktx1.17.0None 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.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:drawerlayout1.0.0None recorded
androidx.emoji2:emoji21.4.0None recorded
androidx.emoji2:emoji2-views-helper1.4.0None recorded
androidx.exifinterface:exifinterface1.4.2None recorded
androidx.fragment:fragment1.7.1None recorded
androidx.fragment:fragment-ktx1.7.1None recorded
androidx.graphics:graphics-path1.0.1None 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.lifecycle:lifecycle-livedata-core2.9.4None recorded
androidx.lifecycle:lifecycle-livedata-core-ktx2.9.4None recorded
androidx.lifecycle:lifecycle-process2.9.4None recorded
androidx.lifecycle:lifecycle-runtime2.9.4None recorded
androidx.lifecycle:lifecycle-runtime-compose2.9.4None recorded
androidx.lifecycle:lifecycle-runtime-ktx2.9.4None recorded
androidx.lifecycle:lifecycle-viewmodel2.9.4None recorded
androidx.lifecycle:lifecycle-viewmodel-compose2.9.4None recorded
androidx.lifecycle:lifecycle-viewmodel-ktx2.9.4None recorded
androidx.lifecycle:lifecycle-viewmodel-savedstate2.9.4None recorded
androidx.loader:loader1.1.0None recorded
androidx.localbroadcastmanager:localbroadcastmanager1.1.0None recorded
androidx.navigationevent:navigationevent1.0.2None recorded
androidx.navigationevent:navigationevent-compose1.0.2None recorded
androidx.preference:preference1.2.1None 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:profileinstaller1.4.0None recorded
androidx.recyclerview:recyclerview1.0.0None recorded
androidx.savedstate:savedstate1.3.3None recorded
androidx.savedstate:savedstate-compose1.3.3None recorded
androidx.savedstate:savedstate-ktx1.3.3None recorded
androidx.slidingpanelayout:slidingpanelayout1.2.0None recorded
androidx.startup:startup-runtime1.1.1None recorded
androidx.swiperefreshlayout:swiperefreshlayout1.0.0None recorded
androidx.tracing:tracing1.2.0None recorded
androidx.transition:transition1.4.1None recorded
androidx.vectordrawable:vectordrawable1.1.0None recorded
androidx.vectordrawable:vectordrawable-animated1.1.0None recorded
androidx.versionedparcelable:versionedparcelable1.1.1None recorded
androidx.viewpager:viewpager1.0.0None recorded
androidx.webkit:webkit1.16.0None recorded
androidx.window.extensions.core:core1.0.0None recorded
androidx.window:window1.3.0None recorded
androidx.window:window-core1.3.0None recorded
androidx.window:window-java1.3.0None recorded
com.squareup.okhttp3:okhttp4.11.0None recorded
kotlinx:coroutines_android1.9.0None recorded
kotlinx:coroutines_core1.9.0None recorded
kotlinx:coroutines_play_services1.9.0None recorded
Export SBOM
About this app · store information

About this app

Jiu Jitsu instructional platform all about teaching technique to the point!

Content ratingEveryone
Download size45.4 MB
Privacy policyPublished →

Screenshots

App 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
2026-10-25 09:30 UTC12.11.097A

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.mahechabjj.mahechabjj/badge.svg)](https://apk-scanner.com/app/com.mahechabjj.mahechabjj)
HTML
<a href="https://apk-scanner.com/app/com.mahechabjj.mahechabjj"><img src="https://apk-scanner.com/app/com.mahechabjj.mahechabjj/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/74d02d2e-90f8-45e9-a906-e2976ac6ee9e/findings.sarif (also coverage.json and proof.json).

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