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Quill Flow: AI Voice Keyboard

FLOW STUDIOS · Build 1.1.8

com.flowstudios.quillflow
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Static analysis completeScanned 2026-10-13 11:28 UTC

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

Overview

Analysis recorded

3 finding categories to review

Quill Flow: AI Voice Keyboard (com.flowstudios.quillflow) scored grade A, 98 out of 100, in a static scan of version 1.1.8 on 2026-10-13. It has no high or critical findings, and 3 lower-severity finding categories across 4 occurrences. 2 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 categories34 occurrences
High / critical0Category count
Tracking SDKs2Presence, not observed traffic
Assessment score98 / 100Grade A

Start with these findings

lowSupabase anon key (public client key)1 occurrence

Interpretation & review guidance

A Supabase anon (public) key. This key is meant to ship in clients, so its presence is expected — it is only an exposure if your tables' Row-Level Security is off, which is exactly what our live check tests. Marked low unless verified.

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
lowSupabase project reference2 occurrences

Interpretation & review guidance

A Supabase project URL. Normal for apps built on Supabase — it's only an exposure if Row-Level Security is disabled and the anon key allows reading data. Verify RLS is enabled on your tables.

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.
Open in all findingsRequest 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.
Open in all findingsRequest a correction
View all 3 categories

Privacy

17 requested permissions · 2 flagged high-risk classes.

Review privacy signals →

Build & components

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

Inspect build evidence →
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Findings

3 categories · 4 occurrences. Severity totals describe categories. Expand a finding for interpretation and review guidance.

lowSupabase anon key (public client key)1 occurrence

Interpretation & review guidance

A Supabase anon (public) key. This key is meant to ship in clients, so its presence is expected — it is only an exposure if your tables' Row-Level Security is off, which is exactly what our live check tests. Marked low unless verified.

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
classes.dex
Recorded match
Pattern recorded; identifying value redacted.
Detector rule
supabase
Recorded file locations
  • classes.dex

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
lowSupabase project reference2 occurrences

Interpretation & review guidance

A Supabase project URL. Normal for apps built on Supabase — it's only an exposure if Row-Level Security is disabled and the anon key allows reading data. Verify RLS is enabled on your tables.

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
classes.dex
Recorded match
Pattern recorded; identifying value redacted.
Detector rule
supabase_url
Recorded file locations
  • classes.dex

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.

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 permissions17
Flagged high-risk classes2
Detected SDKs2

Microphone Draw over other apps

Requested permission inventory (17)
  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.FOREGROUND_SERVICE
  • android.permission.FOREGROUND_SERVICE_SPECIAL_USE
  • android.permission.INTERNET
  • android.permission.POST_NOTIFICATIONS
  • android.permission.POST_PROMOTED_NOTIFICATIONS
  • android.permission.READ_MEDIA_IMAGES
  • android.permission.READ_MEDIA_VISUAL_USER_SELECTED
  • android.permission.RECEIVE_BOOT_COMPLETED
  • android.permission.RECORD_AUDIO
  • android.permission.SYSTEM_ALERT_WINDOW
  • android.permission.VIBRATE
  • com.android.vending.BILLING
  • com.android.vending.CHECK_LICENSE
  • com.flowstudios.quillflow.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
  • 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
Microphone
Microphone
Photos & files
PhotosStorage
Persistent identifiers (referenced in code)
Advertising ID (AAID)Device ID / IMEI
Where it can go
Third parties present (2)
Google AdMobMeta / Facebook SDK
  • Persistent-identifier APIs referenced in code (Advertising ID (AAID), Device ID / IMEI) with 2 analytics/ad SDK(s) present — the mechanism used for cross-app profiling.
  • Microphone, 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 (2 detected · privacy signal, not part of the grade)

Advertising
Google AdMob
Analytics
Meta / Facebook SDK

Build & components

Scanned build 1.1.8. Store metadata may describe a newer release.

APK SHA-256eff6948892883d8f28621f06325c8d7a643334082bd590a2ec262d0513140f77

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
2026-08-07 → 2056-08-07
Cert SHA-256
ae:36:16:85:50:64:d2:cf:c5:6a:33:c8:54:8c:55:5e:4f:60:4b:4c:ee:f7:b1:6a:3a:64:7a:7f:0f:48:73:30

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

92 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-compose1.9.3None recorded
androidx.activity:activity-ktx1.9.3None recorded
androidx.annotation:annotation-experimental1.5.0None recorded
androidx.appcompat:appcompat-resources1.6.1None recorded
androidx.autofill:autofill1.0.0None recorded
androidx.browser:browser1.9.0None recorded
androidx.compose.animation:animation1.12.1None recorded
androidx.compose.animation:animation-core1.12.1None recorded
androidx.compose.foundation:foundation1.12.1None recorded
androidx.compose.foundation:foundation-layout1.12.1None recorded
androidx.compose.material3:material31.5.0-alpha27None recorded
androidx.compose.material3:material3-ripple1.5.0-alpha27None recorded
androidx.compose.material:material-icons-core1.7.8None recorded
androidx.compose.material:material-ripple1.12.1None recorded
androidx.compose.runtime:runtime1.12.1None recorded
androidx.compose.runtime:runtime-annotation1.12.1None recorded
androidx.compose.runtime:runtime-retain1.12.1None recorded
androidx.compose.runtime:runtime-saveable1.12.1None recorded
androidx.compose.ui:ui1.12.1None recorded
androidx.compose.ui:ui-geometry1.12.1None recorded
androidx.compose.ui:ui-graphics1.12.1None recorded
androidx.compose.ui:ui-text1.12.1None recorded
androidx.compose.ui:ui-tooling-preview1.12.1None recorded
androidx.compose.ui:ui-unit1.12.1None recorded
androidx.compose.ui:ui-util1.12.1None recorded
androidx.core:core1.16.0None recorded
androidx.core:core-ktx1.16.0None recorded
androidx.core:core-viewtree1.0.0None recorded
androidx.credentials:credentials1.3.0None recorded
androidx.credentials:credentials-play-services-auth1.3.0None recorded
androidx.customview:customview1.0.0None recorded
androidx.customview:customview-poolingcontainer1.0.0None recorded
androidx.datastore:datastore1.2.1None recorded
androidx.datastore:datastore-core1.2.1None recorded
androidx.datastore:datastore-preferences1.2.1None recorded
androidx.datastore:datastore-preferences-core1.2.1None recorded
androidx.documentfile:documentfile1.0.0None recorded
androidx.emoji2:emoji21.4.0None recorded
androidx.exifinterface:exifinterface1.3.7None recorded
androidx.fragment:fragment1.5.7None recorded
androidx.graphics:graphics-path1.0.1None recorded
androidx.graphics:graphics-shapes1.0.1None recorded
androidx.hilt:hilt-navigation1.2.0None recorded
androidx.hilt:hilt-navigation-compose1.2.0None recorded
androidx.interpolator:interpolator1.0.0None recorded
androidx.legacy:legacy-support-core-utils1.0.0None recorded
androidx.lifecycle:lifecycle-livedata2.9.4None 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:loader1.0.0None recorded
androidx.localbroadcastmanager:localbroadcastmanager1.0.0None recorded
androidx.media:media1.7.0None recorded
androidx.navigation:navigation-common2.5.1None recorded
androidx.navigation:navigation-common-ktx2.5.1None recorded
androidx.navigation:navigation-compose2.5.1None recorded
androidx.navigation:navigation-runtime2.5.1None recorded
androidx.navigation:navigation-runtime-ktx2.5.1None recorded
androidx.print:print1.0.0None recorded
androidx.profileinstaller:profileinstaller1.4.0None recorded
androidx.recyclerview:recyclerview1.3.0None recorded
androidx.room:room-ktx2.8.4None recorded
androidx.room:room-runtime2.8.4None recorded
androidx.savedstate:savedstate1.4.0None recorded
androidx.savedstate:savedstate-compose1.4.0None recorded
androidx.savedstate:savedstate-ktx1.4.0None recorded
androidx.sqlite:sqlite2.6.2None recorded
androidx.sqlite:sqlite-framework2.6.2None recorded
androidx.startup:startup-runtime1.2.0None recorded
androidx.tracing:tracing1.2.0None 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.window:window1.5.0None recorded
androidx.window:window-core1.5.0None recorded
com.google.dagger:dagger2.59.2None recorded
com.google.dagger:dagger-lint-aar2.59.2None recorded
com.google.dagger:hilt-android2.59.2None recorded
com.google.dagger:hilt-core2.59.2None recorded
com.squareup.okhttp3:okhttp4.12.0None recorded
kotlinx:coroutines_android1.10.2None recorded
kotlinx:coroutines_core1.10.2None recorded
kotlinx:coroutines_slf4j1.10.2None recorded
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About this app · store information

About this app

Voice to text keyboard. Speak anywhere, get clean, punctuated writing

Content ratingEveryone
Download size41.5 MB
Privacy policyPublished →
Developer sitewww.quillflow.app

Screenshots

App 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
2026-10-13 11:28 UTC1.1.898A
2026-10-06 10:36 UTC1.1.698A

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
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