Days Bygone - Castle Defense
Frivolition · Build 2.10.0
Static checks identify review items, not a guarantee of safety.
Overview
2 finding categories to review
Days Bygone - Castle Defense (com.frivolition.daysbygone) scored grade A, 93 out of 100, in a static scan of version 2.10.0 on 2026-10-06. It has no high or critical findings, and 2 lower-severity finding categories across 2 occurrences. 15 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
mediumcom.squareup.okhttp3:okhttp 3.12.13 — CVE-2021-03411 occurrence
Interpretation & review guidance
The app bundles a third-party library whose declared version matches a public security advisory (CVE). This is flagged from the version the library itself ships and a curated advisory list — confirm exploitability in your context and update the dependency to the fixed version. It is not a proof of live exploitation.
- 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.
lowExported content provider without permission (third-party library artifact, shared across 403 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.
Build & components
49 components recorded. Certificate parsing does not validate APK signature integrity.
Inspect build evidence →Findings
2 categories · 2 occurrences. Severity totals describe categories. Expand a finding for interpretation and review guidance.
mediumcom.squareup.okhttp3:okhttp 3.12.13 — CVE-2021-03411 occurrence
Interpretation & review guidance
The app bundles a third-party library whose declared version matches a public security advisory (CVE). This is flagged from the version the library itself ships and a curated advisory list — confirm exploitability in your context and update the dependency to the fixed version. It is not a proof of live exploitation.
- 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
- Component advisory match
- Representative location
sbom:com.squareup.okhttp3:okhttp:CVE-2021-0341- Recorded match
CVE-2021-0341 (fixed in 4.9.2)- Detector rule
sbom- Recorded file locations
sbom:com.squareup.okhttp3:okhttp:CVE-2021-0341
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.
lowExported content provider without permission (third-party library artifact, shared across 403 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:com.facebook.FacebookContentProvider- Recorded match
FacebookContentProvider (exported, no permission)- Detector rule
manifest- Recorded file locations
AndroidManifest.xml:com.facebook.FacebookContentProvider
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.
No categories match these filters. Clear the search or choose all severities.
Privacy signals
Capabilities and bundled software do not prove that data was collected or transmitted.
Requested permission inventory (14)
Data collection & flow (privacy signal, not part of the grade)
- Persistent-identifier APIs referenced in code (Advertising ID (AAID), Android ID, Device ID / IMEI) with 14 analytics/ad SDK(s) present — the mechanism used for cross-app profiling.
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: declared vs observed (Play label vs our analysis)
We compare the developer's Google Play Data Safety declaration with what the binary can actually do (permissions it requests, identifier APIs and third-party SDKs it ships). A mismatch is a capability signal to confirm — a requested permission is not proof of collection.
Trackers & SDKs (15 detected · privacy signal, not part of the grade)
Build & components
Scanned build 2.10.0. Store metadata may describe a newer release.
940de35880bca251d5a0fa39ac262ce0f7419e859e713f9b6a9670cdf194c936Signing certificate (who signed this build — factual, not part of the grade)
64:3d:64:38:f9:ad:52:e1:df:ec:05:2c:de:44:34:4a:b6:a7:47:83:0c:91:61:ff:58:f6:75:e0:f8:14:9f:efThe certificate fingerprint identifies the parsed signing certificate. Knowing this public fingerprint does not establish ownership or validate the APK signature.
Component inventory
49 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 | 1.7.1 | None recorded |
androidx.activity:activity-ktx | 1.7.1 | None recorded |
androidx.annotation:annotation-experimental | 1.3.0 | None recorded |
androidx.appcompat:appcompat | 1.1.0 | None recorded |
androidx.appcompat:appcompat-resources | 1.1.0 | None recorded |
androidx.asynclayoutinflater:asynclayoutinflater | 1.0.0 | None recorded |
androidx.browser:browser | 1.0.0 | None recorded |
androidx.cardview:cardview | 1.0.0 | None recorded |
androidx.coordinatorlayout:coordinatorlayout | 1.0.0 | None recorded |
androidx.core:core | 1.9.0 | None recorded |
androidx.core:core-ktx | 1.9.0 | None recorded |
androidx.cursoradapter:cursoradapter | 1.0.0 | None recorded |
androidx.customview:customview | 1.0.0 | None recorded |
androidx.datastore:datastore | 1.0.0 | None recorded |
androidx.documentfile:documentfile | 1.0.0 | None recorded |
androidx.drawerlayout:drawerlayout | 1.0.0 | None recorded |
androidx.fragment:fragment | 1.3.0 | 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.loader:loader | 1.0.0 | None recorded |
androidx.localbroadcastmanager:localbroadcastmanager | 1.0.0 | None recorded |
androidx.media:media | 1.0.0 | None recorded |
androidx.print:print | 1.0.0 | None recorded |
androidx.profileinstaller:profileinstaller | 1.3.0 | None recorded |
androidx.room:room-runtime | 2.2.5 | None recorded |
androidx.savedstate:savedstate | 1.2.1 | None recorded |
androidx.savedstate:savedstate-ktx | 1.2.1 | None recorded |
androidx.slidingpanelayout:slidingpanelayout | 1.0.0 | None recorded |
androidx.sqlite:sqlite | 2.1.0 | None recorded |
androidx.sqlite:sqlite-framework | 2.1.0 | 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.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.viewpager:viewpager | 1.0.0 | None recorded |
androidx.webkit:webkit | 1.6.1 | None recorded |
androidx.work:work-runtime | 2.7.0 | None recorded |
androidx.work:work-runtime-ktx | 2.7.0 | None recorded |
com.google.play.common | 1.8.2 | None recorded |
com.google.play.core | 1.8.2 | None recorded |
com.google.play.integrity | 1.0.2 | None recorded |
com.google.play.review | 1.8.1 | None recorded |
com.squareup.okhttp3:okhttp | 3.12.13 | 1 matchCVE-2021-0341 · medium |
kotlinx:coroutines_android | 1.6.4 | None recorded |
kotlinx:coroutines_core | 1.6.4 | None recorded |
About this app · store information
About this app
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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 |
|---|---|---|---|
| 2026-10-06 19:48 UTC | 2.10.0 | 93 | A |
| 2026-09-02 12:44 UTC | 2.9.2 | 88 | B |
| 2026-09-02 05:23 UTC | 2.9.2 | 94 | A |
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