See the exposure and the apps involved
Findings start with privacy-relevant exposure and identify affected apps where the available evidence supports attribution, so you can see what contributed and why.
See beyond permissions.
See what your Android exposes — without uploading your assessment.
Praecheck is a specialist Android privacy and data-exposure assessment. It shows privacy-relevant findings on your device, links them to affected apps where the evidence supports attribution, flags settings you need to verify, and shows what changed between assessments.
Assessment processing stays on the handset. The production app does not request Android's INTERNET permission, and installed-app context, findings, verification responses and assessment history are not uploaded as part of the assessment.
£14.99 one-off · Up to 2 personal devices · 12 months of updates · No subscription
What Praecheck tells you
From exposure to evidence, action and change.
Praecheck turns locally available Android state into a review you can understand and revisit, without pretending that every privacy-relevant condition can be observed automatically.
Know what was observed — and what you need to verify
Machine-observed state is kept separate from settings that Android requires you to confirm yourself. Praecheck labels verification items instead of guessing.
See what changed since last time
Reassess after installing or removing apps, changing settings or updating Android. Compatible assessments distinguish new, returned, resolved and unchanged findings.
Evidence before conclusions: Praecheck reports technical exposure and capability. It does not claim that a specific app collected, transmitted, sold or shared data unless there is evidence to support that conclusion.
Assessment interface
From finding to context — without collapsing everything into one score.
Praecheck keeps current device state, correlation potential and software exposure context separate. Findings explain what was observed, what it could mean, what you can do and the technical evidence behind it.
Exposure
Risk first. App second. Reason third.
Compact app findings show the contributing signals, potential outcome and score contribution, with deeper app exposure detail available on demand.
Evidence on demand
Capability is kept separate from proof of collection.
Praecheck distinguishes granted access, declared capability and inferred SDK context, and states clearly when evidence does not establish collection, transmission, sale, sharing or commercial exposure.
Verify
Checks Android cannot reliably expose are labelled for user verification.
Guided checks keep user-supplied confirmation separate from machine-observed state. Verification responses remain local and are timestamped for later comparison.
Audit
The complete evidence record remains available.
Audit keeps observed risk, declared capability, verification, restricted coverage and pass records available without duplicating the main Verify workflow.
History
Track what actually changed.
Compatible local assessments show score movement, new, returned, resolved and unchanged findings, while incompatible assessment models start a new comparison baseline.
What Praecheck checks
Six ways Praecheck looks beyond permissions.
Three assessment domains are supported by deeper app/access review, connectivity context and local history — without collapsing different kinds of evidence into a single claim.
Core exposure
Current, observable Android state and granted access — including permissions, special access, connectivity and device configuration relevant to exposure.
Data correlation exposure
Installed-app and SDK capabilities that could support profiling, identity linkage, attribution or enrichment if relevant signals are actually collected and associated.
Software exposure
Exact embedded component versions are matched against Praecheck's bundled offline advisory catalogue, with conditional data-access paths kept separate from other software issues.
Apps, permissions & special access
Review sensitive granted permissions, background access, app declarations and other locally visible characteristics worth checking.
Connectivity & relationships
Review locally visible Wi-Fi, VPN, DNS, Bluetooth and nearby-device conditions that can add association or contextual exposure.
History, freshness & export
Compare compatible assessments, identify returned or resolved findings, see advisory freshness and export detailed evidence to CSV.
Method
A repeatable, evidence-aware assessment process.
Praecheck records current state, prioritises supported exposure findings, identifies checks requiring verification, and preserves the context needed for later comparison.
1
Establish state
Collect the Android state and app metadata available to the local assessment.
2
Prioritise
Separate current exposure from verification items and rank supported findings.
3
Review evidence
Inspect rationale, confidence, evidence and remediation for each relevant finding.
4
Reassess
Compare a later compatible assessment and distinguish device change from model change.
Reassess with context
Your phone changes. Praecheck shows what changed with it.
Apps are installed and removed, permissions and settings change, and Android updates. Compatible assessments distinguish new, returned, resolved and unchanged findings. If the assessment model itself changes, Praecheck starts a new comparison baseline rather than presenting a model change as a device change.
Compatible comparison
Compare score movement and finding state only when assessments use a compatible model.
Regression detection
Identify a finding that was previously resolved and later returns.
Bounded local history
Retain up to 50 assessments on-device with version and role context.
Reassessment interval
Record a local 30, 60 or 90-day recheck plan without background monitoring.
Privacy architecture
Assessment data stays on the handset.
Production APK: no Android INTERNET permission and no Google advertising ID (AD_ID) permission
The production Android application performs its assessment locally. Installed-app context, assessment findings, verification responses, comparison history and role context are not uploaded as part of the assessment process.
Purchase and activation are separate: the website and licensing service process the order and installation details needed to issue a licence; they do not receive your Praecheck assessment results. Praecheck is a data exposure assessment tool, not antivirus, anti-malware or a spyware/compromise detector.
Local processing
Assessment logic executes on the handset against locally available Android state.
Offline assessment
The assessment does not depend on a cloud account, remote scan engine or network lookup.
Independent criteria
Assessment findings are not driven by advertising, affiliate placement or sponsored ranking.
Assessment context
Record device purpose without changing the score.
Device roles add operational context to local assessment history. They do not modify Core scoring or silently re-weight findings.
General-use device
Maintain a baseline for a primary personal Android device.
Financial-use context
Separate assessment history for a device used for a narrower, sensitive purpose.
Work context
Record professional-use context without changing the underlying exposure model.
Travel context
Compare assessments around changes in apps, permissions and connectivity.
Licensing
One simple Personal licence.
£14.99 one-off. Up to 2 personal Android devices, 12 months of Praecheck updates and no subscription.
Praecheck Personal
Up to 2 devices
£14.99one-time
The full Praecheck assessment for up to two personal Android devices.
2 devices means 2 separate activations.
Each device needs its own signed
Each device needs its own signed
.pcl licence file.
On your second device, use that device's installation code with the
same purchase email and purchase reference.
Activate another device →
- Full Android privacy and data-exposure assessment
- App attribution where the evidence supports it
- Observed findings kept separate from user-verification items
- Evidence, interpretation limits and practical actions
- History with new, returned, resolved and unchanged findings
- CSV export for your own records
- 12 months of Praecheck updates
- No subscription
Secure web purchase. Checkout is processed using Stripe Managed Payments. After payment, you return to Praecheck activation to create the signed
.pcl licence file for your installation.Praecheck Personal
See what your Android exposes — on your device.
£14.99 one-off for up to 2 personal devices, including 12 months of updates. Install from Google Play for verified installation and automatic app updates, or use the signed direct APK.
Technical notes
Scope, independent domains and licensing.
What is the assessment scope?
Praecheck evaluates three independent domains: Core exposure from observed/current Android state and granted access; Data correlation exposure from app/SDK capabilities and potential association, profiling or enrichment value; and Software exposure from exact embedded component versions matched against the bundled offline advisory catalogue. Findings include evidence context and practical actions where appropriate.
Does the production app transmit assessment data?
No. The production Android app is designed to perform its assessment locally and does not request Android's INTERNET permission. Assessment results and history are stored on the device.
Is Praecheck a malware, spyware or compromise detector?
No. Praecheck is a data exposure assessment tool. It does not claim to detect malware, spyware, surveillance actors or compromise.
What do the three assessment domains mean?
Core exposure prioritises observed/current Android state and granted access. Data correlation exposure separately assesses app/SDK capabilities and the potential usefulness of data combinations for association, profiling or enrichment if the data were actually collected. Software exposure separately identifies exact embedded component versions that match the offline advisory catalogue, while distinguishing conditional data-access paths from other software issues. The domains are independent and are not evidence that a phone is compromised or that a specific app sold, shared or transmitted data.
Why are repeated assessments useful?
Your exposure profile can change when you install or remove apps, change permissions, update Android, travel, change networks or use the device differently. Praecheck can compare compatible local assessments to show what changed.
How is assessment history retained?
Assessment history, device role and recheck preferences are stored locally on the Android device. Praecheck keeps a bounded history of up to 50 assessments.
What does Praecheck Personal include?
Praecheck Personal is a £14.99 one-off personal-use licence for up to 2 Android devices and includes 12 months of Praecheck updates. It includes the full assessment, verification, history, evidence and export capabilities shown on this site.
How is Praecheck distributed and activated?
Install Praecheck from Google Play for verified installation and automatic app updates, or download the signed APK directly from Praescius. Praecheck Personal can be purchased directly through the website for £14.99 one-time. After payment, enter the purchase email and the Praecheck installation code for the device to create a signed .pcl licence file. Licence verification is performed offline in the Android application.
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