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Proton Calendar: Secure Events

Proton AG · Build 2.34.1

me.proton.android.calendar
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Static analysis completeScanned 2026-10-12 18:50 UTC

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

Overview

Analysis recorded

No findings detected by the completed checks

Proton Calendar: Secure Events (me.proton.android.calendar) scored grade A, 100 out of 100, in a static scan of version 2.34.1 on 2026-10-12. The checks that completed recorded no findings. That is not evidence that the app has none: it reflects what these checks look for in one build, and cannot rule out what they do not cover. 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 categories00 occurrences
High / critical0Category count
Tracking SDKs1Presence, not observed traffic
Assessment score100 / 100Grade A

Start with these findings

No matches were recorded by the completed checks.

View all 0 categories

Privacy

13 requested permissions · 2 flagged high-risk classes.

Review privacy signals →

Build & components

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

Inspect build evidence →
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Findings

0 categories · 0 occurrences. Severity totals describe categories. Expand a finding for interpretation and review guidance.

No findings detected by the completed checks.

Privacy signals

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

Requested permissions13
Flagged high-risk classes2
Detected SDKs1

Camera Contacts

Requested permission inventory (13)
  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.CAMERA
  • android.permission.FOREGROUND_SERVICE
  • android.permission.FOREGROUND_SERVICE_DATA_SYNC
  • android.permission.INTERNET
  • android.permission.POST_NOTIFICATIONS
  • android.permission.READ_CONTACTS
  • android.permission.RECEIVE_BOOT_COMPLETED
  • android.permission.USE_BIOMETRIC
  • android.permission.USE_EXACT_ALARM
  • android.permission.USE_FINGERPRINT
  • android.permission.WAKE_LOCK
  • me.proton.android.calendar.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

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

Data the app can access
Camera
Camera
Contacts
Contacts
Persistent identifiers (referenced in code)
Android IDDevice ID / IMEI
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 2.34.1. Store metadata may describe a newer release.

APK SHA-256f37e879b6dd4eb580db194396277d2985956a7a5e3884ff20dbda3f5b89e6fec

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

Signer
Proton Technologies AG self-signed
Scheme
V3V2V1
Key
RSA 2048-bit
Algorithm
sha256WithRSA
Validity
2015-03-18 → 2042-08-03
Cert SHA-256
dc:c9:43:9e:c1:a6:c6:a8:d0:20:3f:34:23:ee:42:bc:c8:b9:70:62:8e:53:cb:73:a0:39:3f:39:8d:d5:b8:53

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

118 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:activity1.10.1None recorded
androidx.activity:activity-compose1.10.1None recorded
androidx.activity:activity-ktx1.10.1None recorded
androidx.annotation:annotation-experimental1.4.1None recorded
androidx.appcompat:appcompat1.6.1None recorded
androidx.appcompat:appcompat-resources1.6.1None recorded
androidx.autofill:autofill1.0.0None recorded
androidx.biometric:biometric1.2.0-alpha05None recorded
androidx.browser:browser1.7.0None recorded
androidx.cardview:cardview1.0.0None recorded
androidx.compose.animation:animation1.7.5None recorded
androidx.compose.animation:animation-core1.7.5None recorded
androidx.compose.foundation:foundation1.7.5None recorded
androidx.compose.foundation:foundation-layout1.7.5None recorded
androidx.compose.material3:material31.3.1None recorded
androidx.compose.material:material1.7.5None recorded
androidx.compose.material:material-icons-core1.7.5None recorded
androidx.compose.material:material-ripple1.7.5None recorded
androidx.compose.runtime:runtime1.7.5None recorded
androidx.compose.runtime:runtime-saveable1.7.5None recorded
androidx.compose.ui:ui1.7.5None recorded
androidx.compose.ui:ui-geometry1.7.5None recorded
androidx.compose.ui:ui-graphics1.7.5None recorded
androidx.compose.ui:ui-text1.7.5None recorded
androidx.compose.ui:ui-tooling-preview1.7.5None recorded
androidx.compose.ui:ui-unit1.7.5None recorded
androidx.compose.ui:ui-util1.7.5None recorded
androidx.coordinatorlayout:coordinatorlayout1.2.0None recorded
androidx.core:core1.13.1None recorded
androidx.core:core-ktx1.13.1None recorded
androidx.core:core-splashscreen1.0.1None recorded
androidx.core:core-viewtree1.0.0None recorded
androidx.cursoradapter:cursoradapter1.0.0None recorded
androidx.customview:customview1.1.0None recorded
androidx.customview:customview-poolingcontainer1.0.0None recorded
androidx.databinding:baseAdapters8.9.1None recorded
androidx.databinding:databindingKtx8.9.1None recorded
androidx.databinding:library8.9.1None recorded
androidx.databinding:viewbinding8.9.1None 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:documentfile1.0.0None 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.emoji:emoji1.1.0None recorded
androidx.emoji:emoji-bundled1.1.0None recorded
androidx.exifinterface:exifinterface1.3.6None recorded
androidx.fragment:fragment1.6.2None recorded
androidx.fragment:fragment-ktx1.6.2None recorded
androidx.graphics:graphics-path1.0.1None recorded
androidx.hilt:hilt-navigation1.2.0None recorded
androidx.hilt:hilt-navigation-compose1.2.0None recorded
androidx.hilt:hilt-work1.2.0None recorded
androidx.interpolator:interpolator1.0.0None recorded
androidx.legacy:legacy-support-core-utils1.0.0None recorded
androidx.lifecycle:lifecycle-extensions2.0.0None recorded
androidx.lifecycle:lifecycle-livedata2.8.3None recorded
androidx.lifecycle:lifecycle-livedata-core2.8.3None recorded
androidx.lifecycle:lifecycle-livedata-core-ktx2.8.3None recorded
androidx.lifecycle:lifecycle-livedata-ktx2.8.3None recorded
androidx.lifecycle:lifecycle-process2.8.3None recorded
androidx.lifecycle:lifecycle-runtime2.8.3None recorded
androidx.lifecycle:lifecycle-runtime-compose2.8.3None recorded
androidx.lifecycle:lifecycle-runtime-ktx2.8.3None recorded
androidx.lifecycle:lifecycle-service2.8.3None recorded
androidx.lifecycle:lifecycle-viewmodel2.8.3None recorded
androidx.lifecycle:lifecycle-viewmodel-compose2.8.3None recorded
androidx.lifecycle:lifecycle-viewmodel-ktx2.8.3None recorded
androidx.lifecycle:lifecycle-viewmodel-savedstate2.8.3None recorded
androidx.loader:loader1.0.0None recorded
androidx.localbroadcastmanager:localbroadcastmanager1.0.0None recorded
androidx.navigation:navigation-common2.7.7None recorded
androidx.navigation:navigation-common-ktx2.7.7None recorded
androidx.navigation:navigation-compose2.7.7None recorded
androidx.navigation:navigation-fragment2.7.7None recorded
androidx.navigation:navigation-fragment-ktx2.7.7None recorded
androidx.navigation:navigation-runtime2.7.7None recorded
androidx.navigation:navigation-runtime-ktx2.7.7None recorded
androidx.navigation:navigation-ui2.7.7None recorded
androidx.navigation:navigation-ui-ktx2.7.7None recorded
androidx.preference:preference1.1.1None recorded
androidx.preference:preference-ktx1.1.1None recorded
androidx.print:print1.0.0None recorded
androidx.profileinstaller:profileinstaller1.4.0None recorded
androidx.recyclerview:recyclerview1.2.1None recorded
androidx.room:room-ktx2.7.2None recorded
androidx.room:room-runtime2.7.2None recorded
androidx.savedstate:savedstate1.2.1None recorded
androidx.savedstate:savedstate-ktx1.2.1None recorded
androidx.security:security-crypto1.1.0-alpha03None recorded
androidx.slidingpanelayout:slidingpanelayout1.2.0None recorded
androidx.sqlite:sqlite2.6.1None recorded
androidx.sqlite:sqlite-framework2.6.1None recorded
androidx.sqlite:sqlite-ktx2.6.1None recorded
androidx.startup:startup-runtime1.1.1None recorded
androidx.swiperefreshlayout:swiperefreshlayout1.1.0None recorded
androidx.tracing:tracing1.0.0None 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.viewpager2:viewpager21.1.0-alpha01None recorded
androidx.viewpager:viewpager1.0.0None recorded
androidx.window:window1.0.0None recorded
androidx.work:work-runtime2.8.1None recorded
androidx.work:work-runtime-ktx2.8.1None recorded
com.google.android.material:material1.7.0None recorded
com.google.dagger:dagger2.53.1None recorded
com.google.dagger:dagger-lint-aar2.53.1None recorded
com.google.dagger:hilt-android2.53.1None recorded
com.google.dagger:hilt-core2.53.1None recorded
com.squareup.okhttp3:okhttp4.12.0None recorded
kotlinx:coroutines_android1.8.1None recorded
kotlinx:coroutines_core1.8.1None recorded
Export SBOM
About this app · store information

About this app

Private calendar: Reminders, schedule planner, calendar widget, time-management

Content ratingEveryone
Download size122.9 MB
Privacy policyPublished →
Developer siteproton.me/calendar

Screenshots

App screenshotApp 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
2026-10-12 18:50 UTC2.34.1100A
2026-10-05 18:34 UTC2.34.1100A
2026-09-28 18:33 UTC2.34.0100A
2026-09-15 17:38 UTC2.33.2100A
2026-09-07 17:07 UTC2.33.2100A

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/me.proton.android.calendar/badge.svg)](https://apk-scanner.com/app/me.proton.android.calendar)
HTML
<a href="https://apk-scanner.com/app/me.proton.android.calendar"><img src="https://apk-scanner.com/app/me.proton.android.calendar/badge.svg" alt="apk-scanner.com exposure grade" height="20"></a>

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API users can request authenticated, scan-specific exports at /v1/scans/b0970b61-7d57-4855-997d-f741f4465642/findings.sarif (also coverage.json and proof.json).

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