TickTick:To Do List & Calendar
TickTick Limited · Build 8.2.2.0
Static checks identify review items, not a guarantee of safety.
Overview
1 high or critical finding category to review
TickTick:To Do List & Calendar (com.ticktick.task) scored grade F, 29 out of 100, in a static scan of version 8.2.2.0 on 2026-10-10. It has 1 high or critical finding among 6 finding categories across 9 occurrences. One finding was confirmed live: an anonymous request reached a backend the app references and it answered without authentication. No credential was used and no stored data was read. 7 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.
Start with these findings
criticalFirebase Realtime Database reference — confirmed publicly readable1 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
- 1 historically verified occurrence at the recorded scan time. Current reachability is not established.
mediumExported content provider without permission2 occurrences
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
- 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.
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.
Build & components
62 components recorded. Certificate parsing does not validate APK signature integrity.
Inspect build evidence →Findings
6 categories · 9 occurrences. Severity totals describe categories. Expand a finding for interpretation and review guidance.
criticalFirebase Realtime Database reference — confirmed publicly readable1 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
- 1 historically verified occurrence at the recorded scan time. 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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mediumExported content provider without permission2 occurrences
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
- 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
- Parsed app configuration
- Representative location
AndroidManifest.xml:cktick.task.provider.RemoteMethodContentProvider- Recorded match
RemoteMethodContentProvider (exported, no permission)- Detector rule
manifest- Recorded file locations
AndroidManifest.xml:cktick.task.provider.RemoteMethodContentProvider
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 toolsSearch recorded evidence and save private review notes with Pro. $99/month plus applicable tax.
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 toolsSearch recorded evidence and save private review notes with Pro. $99/month plus applicable tax.
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.
Preview evidence and Pro toolsSearch recorded evidence and save private review notes with Pro. $99/month plus applicable tax.
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 toolsSearch recorded evidence and save private review notes with Pro. $99/month plus applicable tax.
lowGoogle API key (client-shipped; restriction unverified)3 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
- 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
AIza•••••••• (21–40 chars, redacted)- Detector rule
google_api_key- Recorded file locations
resources.arscAndroidManifest.xml
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 toolsSearch recorded evidence and save private review notes with Pro. $99/month plus applicable tax.
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Privacy signals
Capabilities and bundled software do not prove that data was collected or transmitted.
Background location Precise location Approx. location Camera Microphone Contacts Calendar Accounts Draw over other apps
Requested permission inventory (58)
Data collection & flow (privacy signal, not part of the grade)
- Approximate location, Precise location, Background location requested while 1 ad/attribution SDK(s) are present (Google AdMob) — location commonly feeds ad targeting.
- Persistent-identifier APIs referenced in code (Advertising ID (AAID), Android ID, Device ID / IMEI) with 6 analytics/ad SDK(s) present — the mechanism used for cross-app profiling.
- Calendar, Camera, Contacts, Microphone, Personal info, 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 (7 detected · privacy signal, not part of the grade)
Build & components
Scanned build 8.2.2.0. Store metadata may describe a newer release.
71ce7dfed13f6ab58f517fd93504c297c60f6cf0fc62ca07a8457a6f77543599Signing certificate (who signed this build — factual, not part of the grade)
80:ef:cc:bb:bc:82:2a:79:9f:f7:e7:87:b8:89:d0:2f:33:76:cc:4b:82:98:75:ea:a2:37:ad:f1:9e:57:81:96The certificate fingerprint identifies the parsed signing certificate. Knowing this public fingerprint does not establish ownership or validate the APK signature.
Component inventory
62 components. Advisory matching covers a curated set; no match is not proof that a component is vulnerability-free.
| Component | Version | Advisory matches |
|---|---|---|
androidx.activity:activity | 1.8.0 | None recorded |
androidx.activity:activity-ktx | 1.8.0 | None recorded |
androidx.annotation:annotation-experimental | 1.4.0 | None recorded |
androidx.appcompat:appcompat | 1.6.1 | None recorded |
androidx.appcompat:appcompat-resources | 1.6.1 | None recorded |
androidx.asynclayoutinflater:asynclayoutinflater | 1.0.0 | None recorded |
androidx.biometric:biometric | 1.1.0 | None recorded |
androidx.browser:browser | 1.0.0 | None recorded |
androidx.cardview:cardview | 1.0.0 | None recorded |
androidx.coordinatorlayout:coordinatorlayout | 1.1.0 | None recorded |
androidx.core:core | 1.13.0 | None recorded |
androidx.core:core-ktx | 1.13.0 | None recorded |
androidx.credentials:credentials | 1.3.0-beta01 | None recorded |
androidx.credentials:credentials-play-services-auth | 1.3.0-beta01 | None recorded |
androidx.cursoradapter:cursoradapter | 1.0.0 | None recorded |
androidx.customview:customview | 1.1.0 | None recorded |
androidx.customview:customview-poolingcontainer | 1.0.0 | None recorded |
androidx.databinding:viewbinding | 8.13.0 | None recorded |
androidx.documentfile:documentfile | 1.0.0 | None recorded |
androidx.drawerlayout:drawerlayout | 1.1.1 | None recorded |
androidx.dynamicanimation:dynamicanimation | 1.0.0 | None recorded |
androidx.emoji2:emoji2 | 1.2.0 | None recorded |
androidx.emoji2:emoji2-views-helper | 1.2.0 | None recorded |
androidx.exifinterface:exifinterface | 1.0.0 | None recorded |
androidx.fragment:fragment | 1.6.1 | None recorded |
androidx.fragment:fragment-ktx | 1.6.1 | None recorded |
androidx.interpolator:interpolator | 1.0.0 | None recorded |
androidx.legacy:legacy-support-core-ui | 1.0.0 | None recorded |
androidx.legacy:legacy-support-core-utils | 1.0.0 | None recorded |
androidx.legacy:legacy-support-v4 | 1.0.0 | None recorded |
androidx.lifecycle:lifecycle-extensions | 2.2.0 | None recorded |
androidx.loader:loader | 1.1.0 | None recorded |
androidx.localbroadcastmanager:localbroadcastmanager | 1.0.0 | None recorded |
androidx.media:media | 1.0.0 | None recorded |
androidx.palette:palette | 1.0.0 | None recorded |
androidx.palette:palette-ktx | 1.0.0 | None recorded |
androidx.preference:preference | 1.2.1 | None recorded |
androidx.preference:preference-ktx | 1.2.1 | None recorded |
androidx.print:print | 1.0.0 | None recorded |
androidx.profileinstaller:profileinstaller | 1.3.1 | None recorded |
androidx.recyclerview:recyclerview | 1.4.0 | None recorded |
androidx.room:room-runtime | 2.5.0 | None recorded |
androidx.savedstate:savedstate | 1.2.1 | None recorded |
androidx.savedstate:savedstate-ktx | 1.2.1 | None recorded |
androidx.slidingpanelayout:slidingpanelayout | 1.2.0 | None recorded |
androidx.sqlite:sqlite | 2.3.0 | None recorded |
androidx.sqlite:sqlite-framework | 2.3.0 | None recorded |
androidx.startup:startup-runtime | 1.1.1 | None recorded |
androidx.swiperefreshlayout:swiperefreshlayout | 1.0.0 | None recorded |
androidx.tracing:tracing | 1.0.0 | None recorded |
androidx.transition:transition | 1.4.1 | None recorded |
androidx.vectordrawable:vectordrawable | 1.1.0 | None recorded |
androidx.vectordrawable:vectordrawable-animated | 1.1.0 | None recorded |
androidx.versionedparcelable:versionedparcelable | 1.1.1 | None recorded |
androidx.viewpager2:viewpager2 | 1.1.0 | None recorded |
androidx.viewpager:viewpager | 1.0.0 | None recorded |
androidx.window:window | 1.0.0 | None recorded |
androidx.work:work-runtime | 2.8.0 | None recorded |
com.google.android.material:material | 1.10.0 | None recorded |
com.squareup.okhttp3:okhttp | 4.12.0 | None recorded |
kotlinx:coroutines_android | 1.7.3 | None recorded |
kotlinx:coroutines_core | 1.7.3 | None recorded |
About this app · store information
About this app
Your second brain for organizing your life: to-do, calendar, reminder.
Screenshots
Scan history
Each row is an observed scan. Gaps between scans do not establish how long a finding existed.
| Scanned (UTC) | Build | Score | Grade |
|---|---|---|---|
| 2026-10-10 16:25 UTC | 8.2.2.0 | 29 | F |
| 2026-10-03 13:15 UTC | 8.2.2.0 | 29 | F |
| 2026-09-26 13:15 UTC | 8.2.1.0 | 76 | B |
| 2026-09-17 14:39 UTC | 8.2.1.0 | 76 | B |
| 2026-09-08 12:54 UTC | 8.1.3.6 | 22 | F |
Export & share
Exports describe the recorded assessment. Signed evidence proves origin and integrity, not completeness or safety.
Coverage & gap matrix · Verify signed evidence
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API users can request authenticated, scan-specific exports at /v1/scans/8daec0bd-d6de-44eb-9e6a-7326160f21b3/findings.sarif (also coverage.json and proof.json).
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