Native macOS package
A notarized Mac build is required for dependable direct installation.
Independent security by Express Tech
Desktop security + mobile companion
ShieldAI
A layered security workspace with explainable local detection, ransomware activity watch, MITRE-mapped behavior alerts, scheduled scanning, Windows posture scoring, recoverable quarantine, and Browser Shield reputation.
Desktop 0.5.0Mobile 0.3.0Intelligence Express Tech hosted
Official Windows installer
ShieldAI 0.5.0
Version 0.5.0 adds scheduled smart scanning, durable scan reports, expanded ransomware and credential-access detection, MITRE ATT&CK context, 17-point Windows posture scoring, exact-hash trust, guarded exclusions, and stronger Browser Shield warnings. File analysis and quarantine stay local.
SHA-256 verification
D54F99DDEA5248458F6387477B732724118E988F4C342AE87B158AC30D4F219AThe installer is not currently digitally signed, so Windows SmartScreen may warn. Confirm the file name and checksum above before running it.
Native downloads
Download ShieldAI for your device.
These are application packages hosted by Express Tech on AWS. Apple packages will appear after Apple’s required signing and release process is complete.
Download for Linux
Portable x64 desktop archive · 103.9 MB
Download 103.9 MBNative iOS package
iPhone installs require TestFlight, App Store, or registered-device distribution.
Download the Android APK
Native package · version 0.3.0 · 13.4 MB
Download APKMobile edition
Android isolates apps from one another, so ShieldAI Mobile does not claim whole-device antivirus scanning. Free includes manual checks of files you select and local activity. A verified Premium or Pro key unlocks link analysis and the security checklist.
Linux SHA-256
23E5BBD2E57E05C7803B61618D4FEEBEB671DA8C8AF9300782592A3D63775CB5Android SHA-256
6B7584BCA69C8B6927DB2EBDC7BAB7E060C8E3FB0A86556405A263C862CB177BSecurity without the noise
Understand what your device is telling you.
ShieldAI provides user-mode scanning, risk scoring, folder and process monitoring, quarantine, posture reporting, browser checks, and guided explanations. It complements the signed kernel and memory protections supplied by Windows Security; it does not replace them.
ShieldAI capabilities
Protection information that stays understandable.
Explainable local detection
Check SHA-256 definitions, file structure, scripts, executable traits, supported ZIP contents, and transparent local risk signals without uploading files.
Ransomware activity watch
Monitor Downloads, Desktop, Documents, and Pictures and alert when unusually rapid file changes may require immediate review.
MITRE-mapped behavior alerts
Recognize high-confidence security tampering, recovery destruction, credential access, remote execution, Office-to-shell, and living-off-the-land patterns.
Smart, full, custom, and scheduled scans
See the current file and progress, stop safely, schedule daily or weekly smart scans, and retain durable scan history.
Windows posture score
Review Windows Security, firewall, cloud protection, ransomware protection, Secure Boot, TPM, drive encryption, SmartScreen, UAC, and definition freshness without silent changes.
Stronger Browser Shield
Refresh live reputation, catch high-confidence brand impersonation and disguised downloads, and manage an exact-domain local trust list.
Safer quarantine and tuning
Re-scan before restore, verify payload integrity, trust only an exact SHA-256 hash, use guarded folder exclusions, and export a local security report.
Context-aware security guide
Use account-authenticated hosted explanations grounded in the current posture and latest scan summary, with safe escalation for urgent threats.
Introductory launch pricing
Start free, then choose the protection you need.
Paid plans are one-time terms, not automatic subscriptions. Sign in first; the pricing page uses your verified Customer File instead of asking you to type an email.
ShieldAI Free
$0Manual local scans and local security history.
Download FreeShieldAI Premium
From $4.99Real-time guard, Browser Shield, quarantine controls, and up to 3 devices.
ShieldAI Pro
From $9.99Premium protection plus advanced insights, remediation controls, and up to 10 devices.
Every successful purchase is recorded in the signed-in Customer File. Its one-time SAI key is emailed through Resend and locked to the account that completed checkout.
AWS account and licensing
The apps now use the Express Tech AWS service.
ShieldAI opens the AWS customer account page and uses the AWS login and license-verification APIs. It no longer depends on the former ChatGPT-hosted site.
Local security core File contents remain on the device while ShieldAI checks hashes, structure, scripts, risk traits, and ZIP entries.Reputation without browsing uploads Browser Shield downloads domain intelligence but does not upload page contents or browsing history.Honest protection layers Windows Security provides the signed kernel and memory-protection layer; ShieldAI reports its status without silently changing it.