Browse appsScan report

Khan Academy

Khan Academy · Build 8.5.1

org.khanacademy.android
Rescan appExport / share
Static analysis completeScanned 2026-10-08 15:31 UTC

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

Overview

Analysis recorded

6 finding categories to review

Khan Academy (org.khanacademy.android) scored grade A, 90 out of 100, in a static scan of version 8.5.1 on 2026-10-08. It has no high or critical findings, and 6 lower-severity finding categories across 6 occurrences. 1 tracking SDK is 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 SDKs1Presence, not observed traffic
Assessment score90 / 100Grade A

Start with these findings

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
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
lowFirebase Storage bucket reference1 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
Static detection; current reachability is not established.
Open in all findingsRequest a correction
View all 6 categories

Privacy

14 requested permissions · 2 flagged high-risk classes.

Review privacy signals →

Build & components

65 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.

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
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
lowFirebase Storage bucket reference1 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
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

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
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.

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.bundle
Recorded match
Pattern recorded; identifying value redacted.
Detector rule
sentry_dsn
Recorded file locations
  • assets/index.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
infoApplication data is backup-enabled1 occurrence

Interpretation & review guidance

The app allows Android backups (android:allowBackup="true"). App data can then be extracted via adb backup on many devices — a concern if the app stores tokens or personal/health/payment data locally. Common and low-severity, but worth disabling for sensitive apps.

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:allowBackup="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

Privacy signals

Capabilities and bundled software do not prove that data was collected or transmitted.

Requested permissions14
Flagged high-risk classes2
Detected SDKs1

Phone state Storage

Requested permission inventory (14)
  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.ACCESS_NOTIFICATION_POLICY
  • android.permission.ACCESS_WIFI_STATE
  • android.permission.FOREGROUND_SERVICE
  • android.permission.INTERNET
  • android.permission.POST_NOTIFICATIONS
  • android.permission.READ_EXTERNAL_STORAGE
  • android.permission.READ_PHONE_STATE
  • android.permission.RECEIVE_BOOT_COMPLETED
  • android.permission.VIBRATE
  • android.permission.WAKE_LOCK
  • com.google.android.c2dm.permission.RECEIVE
  • com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
  • org.khanacademy.android.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

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

Data the app can access
Phone
Phone state / number
Photos & files
Storage (write)Storage
Persistent identifiers (referenced in code)
Android IDDevice ID / IMEIHardware MAC address
Where it can go
Third parties present
No analytics/advertising SDKs detected.
  • Personal-data permissions/identifiers appear on-device, but no third-party analytics/advertising SDKs were detected that would receive them.

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

Crash reporting
Sentry

Build & components

Scanned build 8.5.1. Store metadata may describe a newer release.

APK SHA-25633d2f3499a567ca7fabba4cbd6415a5f1a452283aa54f0c2f42b2691bc8426f3

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

Signer
Khan Academy self-signed
Scheme
V3V2
Key
RSA 1024-bit
Algorithm
sha1WithRSA
Validity
2015-04-03 → 2040-03-27
Cert SHA-256
ef:fc:fe:21:10:60:12:61:7b:d6:3d:eb:9d:fd:b8:35:4d:1d:57:4d:1d:67:c5:66:4a:5d:02:e6:69:b2:4e:cb

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

65 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:activity1.8.0None recorded
androidx.activity:activity-ktx1.8.0None recorded
androidx.annotation:annotation-experimental1.4.0None recorded
androidx.appcompat:appcompat1.6.1None recorded
androidx.appcompat:appcompat-resources1.6.1None recorded
androidx.asynclayoutinflater:asynclayoutinflater1.0.0None recorded
androidx.autofill:autofill1.1.0None recorded
androidx.browser:browser1.0.0None recorded
androidx.cardview:cardview1.0.0None recorded
androidx.coordinatorlayout:coordinatorlayout1.2.0None recorded
androidx.core:core1.13.1None recorded
androidx.core:core-ktx1.13.1None recorded
androidx.cursoradapter:cursoradapter1.0.0None recorded
androidx.customview:customview1.1.0None recorded
androidx.customview:customview-poolingcontainer1.0.0None recorded
androidx.documentfile:documentfile1.0.0None recorded
androidx.drawerlayout:drawerlayout1.1.1None recorded
androidx.dynamicanimation:dynamicanimation1.0.0None recorded
androidx.emoji2:emoji21.2.0None recorded
androidx.emoji2:emoji2-views-helper1.2.0None recorded
androidx.fragment:fragment1.6.1None recorded
androidx.fragment:fragment-ktx1.6.1None 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.legacy:legacy-support-v131.0.0None recorded
androidx.legacy:legacy-support-v41.0.0None recorded
androidx.lifecycle:lifecycle-extensions2.2.0None recorded
androidx.lifecycle:lifecycle-livedata2.7.0None recorded
androidx.lifecycle:lifecycle-livedata-core2.7.0None recorded
androidx.lifecycle:lifecycle-livedata-core-ktx2.7.0None recorded
androidx.lifecycle:lifecycle-process2.7.0None recorded
androidx.lifecycle:lifecycle-runtime2.7.0None recorded
androidx.lifecycle:lifecycle-runtime-ktx2.7.0None recorded
androidx.lifecycle:lifecycle-service2.7.0None recorded
androidx.lifecycle:lifecycle-viewmodel2.7.0None recorded
androidx.lifecycle:lifecycle-viewmodel-ktx2.7.0None recorded
androidx.lifecycle:lifecycle-viewmodel-savedstate2.7.0None recorded
androidx.loader:loader1.0.0None recorded
androidx.localbroadcastmanager:localbroadcastmanager1.0.0None recorded
androidx.media:media1.2.1None recorded
androidx.print:print1.0.0None recorded
androidx.profileinstaller:profileinstaller1.3.0None recorded
androidx.recyclerview:recyclerview1.3.1None 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:tracing1.1.0None 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.webkit:webkit1.4.0None recorded
androidx.work:work-runtime2.8.0None recorded
com.google.android.material:material1.12.0None recorded
com.squareup.okhttp3:okhttp4.9.2None recorded
kotlinx:coroutines_android1.7.1None recorded
kotlinx:coroutines_core1.7.1None recorded
Export SBOM
About this app · store information

About this app

You can learn anything.

Content ratingTeen
Download size31.8 MB
Privacy policyPublished →
Developer sitekhanacademy.org

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
2026-10-08 15:31 UTC8.5.190A
2026-10-01 15:31 UTC8.5.190A
2026-09-23 07:46 UTC8.5.189B
2026-09-14 07:30 UTC8.5.189B
2026-09-07 06:23 UTC8.5.189B

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/org.khanacademy.android/badge.svg)](https://apk-scanner.com/app/org.khanacademy.android)
HTML
<a href="https://apk-scanner.com/app/org.khanacademy.android"><img src="https://apk-scanner.com/app/org.khanacademy.android/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/063a96f5-4539-405d-8cfd-075ae55969f3/findings.sarif (also coverage.json and proof.json).

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