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Da Fit

MO YOUNG LIMITED · Build 2.9.24-104-ge898488cf6

com.crrepa.band.dafit
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Static analysis completeScanned 2026-10-10 01:51 UTC

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

Overview

Analysis recorded

6 finding categories to review

Da Fit (com.crrepa.band.dafit) scored grade B, 89 out of 100, in a static scan of version 2.9.24-104-ge898488cf6 on 2026-10-10. It has no high or critical findings, and 6 lower-severity finding categories across 7 occurrences. 20 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 categories67 occurrences
High / critical0Category count
Tracking SDKs20Presence, not observed traffic
Assessment score89 / 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
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.
Open in all findingsRequest a correction
lowExported content provider without permission (third-party library artifact, shared across 232 unrelated developers)1 occurrence

Interpretation & review guidance

An exported content provider declares no permission. Other apps on the device may reach it — verify it enforces access control internally; this flags the attack surface, not a confirmed leak.

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

50 requested permissions · 11 flagged high-risk classes.

Review privacy signals →

Build & components

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

Inspect build evidence →
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Findings

6 categories · 7 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.

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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.

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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Search recorded evidence and save private review notes with Pro. $99/month plus applicable tax.

Link to categoryRequest a correction
lowExported content provider without permission (third-party library artifact, shared across 232 unrelated developers)1 occurrence

Interpretation & review guidance

An exported content provider declares no permission. Other apps on the device may reach it — verify it enforces access control internally; this flags the attack surface, not a confirmed leak.

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:ca.analytics.internal.PreloadInfoContentProvider
Recorded match
PreloadInfoContentProvider (exported, no permission)
Detector rule
manifest
Recorded file locations
  • AndroidManifest.xml:ca.analytics.internal.PreloadInfoContentProvider

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
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.

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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)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.

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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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 permissions50
Flagged high-risk classes11
Detected SDKs20

Background location Precise location Approx. location Camera Microphone Contacts Read SMS Send SMS Call log Phone state Calendar

Requested permission inventory (50)
  • android.permission.ACCESS_ADSERVICES_AD_ID
  • android.permission.ACCESS_ADSERVICES_ATTRIBUTION
  • android.permission.ACCESS_ADSERVICES_TOPICS
  • android.permission.ACCESS_BACKGROUND_LOCATION
  • android.permission.ACCESS_COARSE_LOCATION
  • android.permission.ACCESS_FINE_LOCATION
  • android.permission.ACCESS_LOCATION_EXTRA_COMMANDS
  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.ACCESS_WIFI_STATE
  • android.permission.ACTIVITY_RECOGNITION
  • android.permission.AD_ID
  • android.permission.AD_SERVICES_CONFIG
  • android.permission.ANSWER_PHONE_CALLS
  • android.permission.BLUETOOTH_CONNECT
  • android.permission.BLUETOOTH_SCAN
  • android.permission.BROADCAST_STICKY
  • android.permission.CALL_PHONE
  • android.permission.CAMERA
  • android.permission.CHANGE_WIFI_STATE
  • android.permission.FLASHLIGHT
  • android.permission.FOREGROUND_SERVICE
  • android.permission.FOREGROUND_SERVICE_CONNECTED_DEVICE
  • android.permission.FOREGROUND_SERVICE_DATA_SYNC
  • android.permission.FOREGROUND_SERVICE_LOCATION
  • android.permission.GET_TASKS
  • android.permission.INTERNET
  • android.permission.MEDIA_PROJECTION
  • android.permission.MODIFY_AUDIO_SETTINGS
  • android.permission.POST_NOTIFICATIONS
  • android.permission.READ_CALENDAR
  • android.permission.READ_CALL_LOG
  • android.permission.READ_CONTACTS
  • android.permission.READ_LOGS
  • android.permission.READ_MEDIA_AUDIO
  • android.permission.READ_MEDIA_VISUAL_USER_SELECTED
  • android.permission.READ_PHONE_STATE
  • android.permission.READ_SMS
  • android.permission.RECORD_AUDIO
  • android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
  • android.permission.SEND_SMS
  • android.permission.VIBRATE
  • android.permission.WAKE_LOCK
  • android.permission.WRITE_CALENDAR
  • com.amazon.privacypass.ATTEST
  • com.coloros.permission.READ_COLOROS_CALENDAR
  • com.coloros.permission.WRITE_COLOROS_CALENDAR
  • com.crrepa.band.dafit.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
  • com.google.android.c2dm.permission.RECEIVE
  • com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
  • com.google.android.gms.permission.AD_ID

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

Data the app can access
Calendar
CalendarCalendar (write)
Call log
Call log
Camera
Camera
Contacts
Contacts
Location
Approximate locationPrecise locationBackground location
Microphone
Microphone
Phone
Phone state / number
Photos & files
StorageStorage (write)Audio files
SMS
Read SMSSend SMS
Persistent identifiers (referenced in code)
Advertising ID (AAID)Android IDDevice ID / IMEIHardware MAC address
Where it can go
Third parties present (17)
AppLovinChartboostGoogle AdMobInMobiMeta Audience NetworkMintegralPangle (ByteDance)TapjoyUnity AdsVungleYandex AdsironSourceGoogle Analytics for FirebaseGoogle Firebase AnalyticsGoogle Tag ManagerYandex MetricaAppsFlyer
  • Approximate location, Precise location, Background location requested while 13 ad/attribution SDK(s) are present (AppLovin, Chartboost, Google AdMob +10 more) — location commonly feeds ad targeting.
  • Persistent-identifier APIs referenced in code (Advertising ID (AAID), Android ID, Device ID / IMEI +1 more) with 17 analytics/ad SDK(s) present — the mechanism used for cross-app profiling.
  • Calendar, Call log, Camera, Contacts, Microphone, Phone, Photos & files, SMS 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 (20 detected · privacy signal, not part of the grade)

Advertising
AppLovinChartboostGoogle AdMobInMobiMeta Audience NetworkMintegralPangle (ByteDance)TapjoyUnity AdsVungleYandex AdsironSource
Analytics
Google Analytics for FirebaseGoogle Firebase AnalyticsGoogle Tag ManagerYandex Metrica
Attribution
AppsFlyer
Consent
Google UMP (consent)IAB TCF
Crash reporting
Google Crashlytics

Build & components

Scanned build 2.9.24-104-ge898488cf6. Store metadata may describe a newer release.

APK SHA-256737b3f8e923bedb992ef6a7651dc5b4660641318db0cb1cb90e35f215dc50b97

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

Signer
moyoung self-signed
Scheme
V3V2V1
Key
RSA 2048-bit
Algorithm
sha256WithRSA
Validity
2017-12-06 → 2042-11-30
Cert SHA-256
37:ae:1a:b5:53:08:19:42:0a:c6:14:9d:66:ec:b0:16:7a:81:e1:fd:5b:d9:cd:06:c7:fa:17:5c:9e:11:61:3c

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

104 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:activity1.9.2None recorded
androidx.activity:activity-compose1.9.2None recorded
androidx.activity:activity-ktx1.9.2None 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:autofill1.0.0None recorded
androidx.browser:browser1.8.0None recorded
androidx.camera:camera-camera21.4.2None recorded
androidx.camera:camera-core1.4.2None recorded
androidx.camera:camera-lifecycle1.4.2None recorded
androidx.camera:camera-video1.4.2None recorded
androidx.camera:camera-view1.4.2None recorded
androidx.cardview:cardview1.0.0None recorded
androidx.compose.animation:animation1.2.1None recorded
androidx.compose.animation:animation-core1.2.1None recorded
androidx.compose.foundation:foundation1.2.1None recorded
androidx.compose.foundation:foundation-layout1.2.1None recorded
androidx.compose.material:material1.2.1None recorded
androidx.compose.material:material-icons-core1.2.1None recorded
androidx.compose.material:material-ripple1.2.1None recorded
androidx.compose.runtime:runtime1.2.1None recorded
androidx.compose.runtime:runtime-saveable1.2.1None recorded
androidx.compose.ui:ui1.2.1None recorded
androidx.compose.ui:ui-geometry1.2.1None recorded
androidx.compose.ui:ui-graphics1.2.1None recorded
androidx.compose.ui:ui-text1.2.1None recorded
androidx.compose.ui:ui-unit1.2.1None recorded
androidx.compose.ui:ui-util1.2.1None recorded
androidx.constraintlayout:constraintlayout2.2.1None recorded
androidx.coordinatorlayout:coordinatorlayout1.1.0None recorded
androidx.core:core1.13.1None recorded
androidx.core:core-ktx1.13.1None recorded
androidx.core:core-splashscreen1.2.0None recorded
androidx.cursoradapter:cursoradapter1.0.0None recorded
androidx.customview:customview1.1.0None recorded
androidx.customview:customview-poolingcontainer1.0.0None recorded
androidx.databinding:baseAdapters4.2.2None recorded
androidx.databinding:library4.2.2None recorded
androidx.databinding:viewbinding8.12.1None 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:dynamicanimation1.1.0None recorded
androidx.emoji2:emoji21.3.0None recorded
androidx.emoji2:emoji2-views-helper1.3.0None recorded
androidx.exifinterface:exifinterface1.3.6None recorded
androidx.fragment:fragment1.5.4None recorded
androidx.graphics:graphics-shapes1.0.1None 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.legacy:legacy-support-v41.0.0None 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-compose2.7.0None 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:media1.6.0None recorded
androidx.palette:palette1.0.0None recorded
androidx.preference:preference1.1.1None 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:recyclerview1.3.2None recorded
androidx.room:room-ktx2.5.2None recorded
androidx.room:room-runtime2.5.2None recorded
androidx.savedstate:savedstate1.2.1None recorded
androidx.savedstate:savedstate-ktx1.2.1None recorded
androidx.slidingpanelayout:slidingpanelayout1.0.0None recorded
androidx.sqlite:sqlite2.3.1None recorded
androidx.sqlite:sqlite-framework2.3.1None recorded
androidx.startup:startup-runtime1.1.1None recorded
androidx.swiperefreshlayout:swiperefreshlayout1.0.0None 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:viewpager21.1.0-beta02None recorded
androidx.viewpager:viewpager1.0.0None recorded
androidx.webkit:webkit1.12.1None recorded
androidx.work:work-runtime2.8.1None recorded
androidx.work:work-runtime-ktx2.8.1None recorded
com.google.android.material:material1.13.0None recorded
com.squareup.okhttp3:okhttp4.11.0None recorded
kotlinx:coroutines_android1.10.2None recorded
kotlinx:coroutines_core1.10.2None recorded
kotlinx:coroutines_play_services1.10.2None recorded
kotlinx:coroutines_slf4j1.10.2None recorded
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About this app · store information

About this app

Use Da Fit Band to set, track, and follow your health data day and night.

Content ratingEveryone
Download size209.2 MB
Privacy policyPublished →
Developer sitewww.moyoung.com

Screenshots

App 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 01:51 UTC2.9.24-104-ge898488cf689B
2026-10-02 23:19 UTC2.9.24-104-ge898488cf689B
2026-09-24 11:04 UTC2.9.24-104-ge898488cf688B
2026-09-16 07:49 UTC2.9.23-4-g626574b11f82B

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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