SentinelMDM

Total device visibility — without handing your data to anyone

SentinelMDM provides full, real-time oversight for your family or team's Android phones and Windows PCs. All photos, location data, and on-screen text are zero-knowledge encrypted directly on the device and can only be accessed by you—the server cannot read any of it. The app also cannot be removed or disabled.

Create a free account to explore a live demo dashboard with sample data — no card, no device required.

Data sovereignty

Your data belongs to you. It's encrypted with a key derived from your password, in your browser. We physically cannot read it, hand it over, or sell it.

Deep visibility

Far beyond app timers: live location, on-screen text awareness, visual check-ins, calls, messages and apps — a complete picture when you need it most.

Tamper-resistant

Running as the device's Device Owner, the agent can't be uninstalled, force-stopped, or dodged by powering the device off. Protection that stays on.

Behavioral ransomware defense

On Windows PCs, behavioral detection and default-deny app control catch threats signature-based antivirus can miss, and automatically isolate a PC the moment ransomware-like activity is detected.

Common questions

Frequently asked questions

Is SentinelMDM legal to use?

Yes, when used as intended: a parent, legal guardian, or business owner supervising their own device users on a device they own and administer, with the monitoring disclosed to the device user. SentinelMDM is built for disclosed, consent-based supervision — not covert tracking of another adult. Recording-consent and privacy laws vary by jurisdiction, so lawful use is the account holder's responsibility. Read the full legal guide →

Can SentinelMDM read my data?

No. SentinelMDM uses zero-knowledge end-to-end encryption. Photos, video, screenshots, audio, location, and on-screen text are encrypted on the device before they ever leave it, with a key derived from your password inside your browser. Our servers only ever store opaque ciphertext we cannot read, hand over, or sell. Because the key never leaves you, we also cannot reset your password or recover your data if you lose it. How zero-knowledge works →

Will the device user know the app is installed?

SentinelMDM is disclosed monitoring software, meant to be installed openly and with the device user's knowledge. It is designed for honest supervision, not secret surveillance. Disclosed vs. stealth monitoring →

What can I monitor with SentinelMDM?

A complete picture from one dashboard. On Android: live map and location history, geofencing alerts, platform-level on-screen text awareness, on-demand photo and screenshot check-ins, calls, SMS and contacts, installed-app control with allow/block lists, and remote controls such as lock, factory-wipe, and a max-volume locate alarm. On Windows PCs: security and remote support — BitLocker disk encryption, behavioral malware/ransomware protection, application control, and secure remote troubleshooting.

Can the app be uninstalled or bypassed?

No. SentinelMDM runs as Device Owner — Android's built-in trusted-administrator role. It cannot be uninstalled, force-stopped, or evaded by powering the device off, so protection stays on.

How long is captured data stored, and how much does it cost?

All captured telemetry automatically purges on a strict 30-day TTL, aligned with COPPA data-minimization. SentinelMDM starts at $9.99/month and includes a 30-day free trial. See pricing →

Can I use SentinelMDM for my business?

Yes. After creating your account, you can permanently activate Business Account mode. This ensures compliance by disabling invasive captures (like audio/video and keylogging) and lets you create team sub-users to help manage your business devices, with full zero-knowledge encryption intact.

Does SentinelMDM support Windows PCs?

Yes. Alongside deep Android monitoring, SentinelMDM supports Windows PCs from the same zero-knowledge dashboard — BitLocker disk-encryption enablement, malware/ransomware protection, application allow-listing, and secure remote troubleshooting. Windows PC support is focused on security and remote support rather than the full location/photo/messaging monitoring available on Android. See all features →

How is Windows ransomware protection different from antivirus?

Traditional antivirus mostly matches files against a database of known threats, so it's often blind to brand-new or custom malware. SentinelMDM instead uses behavioral detection (watching how processes actually act, not just known signatures), default-deny application control that blocks anything not explicitly approved from running at all, and ransomware canary files that detect the file-encryption pattern ransomware relies on and can automatically isolate the PC from the network. No security product can guarantee protection against every threat, but this layered, behavior-first approach catches classes of attacks signature-based antivirus commonly misses.

See your SentinelMDM dashboard

Create a free account and your dashboard comes pre-loaded with a demo device and sample data — live map, screen text, photos and more, ready in seconds. No card, no device required.