Subscription
Tiers
Nötkey tiers define how environment control is enabled on your device. Free provides app-only access. Guardian and higher tiers enable full system-level separation and profile control. Pricing is shown in Google Play.
Free
No subscription requiredAccess to the Nötkey application without system-level separation. Suitable for exploring the interface before committing to full setup.
- —Access to the Nötkey app
- —Basic Public Profile environment
- —Evaluate the app before committing
- —No factory reset required
- —Upgrade to a paid tier at any time
Free does not include Private Profile, profile switching, Emergency wipe, or Border mode. These features require Guardian or higher.
Guardian
Monthly or annual subscriptionThe entry-level paid tier. Enables full environment separation and profile control. Requires a factory reset.
Everything in Free, plus:
- —Device Owner provisioning
- —Public Profile (everyday, presentable)
- —Private Profile (isolated environment)
- —Profile switching
- —Emergency wipe
- —Border mode
- —Private Access
Requires factory reset to set up. Setup takes 45–60 minutes. This is irreversible without another factory reset.
Sentinel
Monthly or annual subscriptionIncludes all Guardian capabilities, plus additional visibility into system behavior and enforcement state.
Everything in Guardian, plus:
- —Additional monitoring capabilities
- —Enforcement visibility
- —See in-app tier details for full list
Requires factory reset to set up if not already provisioned. For the complete Sentinel feature list, refer to the in-app tier details screen.
Sentinel Pro
Monthly or annual subscriptionIncludes all Sentinel capabilities, plus automated setup and a fully realized Public Profile with pre-seeded data and behavior.
Everything in Sentinel, plus:
- —Advanced automation capabilities
- —Profile-preparation tools
- —See in-app tier details for full list
Requires factory reset to set up if not already provisioned. For the complete Sentinel Pro feature list, refer to the in-app tier details screen.
Feature comparison
| Feature | Free | Guardian | Sentinel | Sentinel Pro |
|---|---|---|---|---|
| Install and use the app | Yes | Yes | Yes | Yes |
| Public Profile | Limited | Yes | Yes | Yes |
| Private Profile (isolated) | No | Yes | Yes | Yes |
| Profile switching | No | Yes | Yes | Yes |
| Device Owner mode | No | Yes | Yes | Yes |
| Emergency wipe | No | Yes | Yes | Yes |
| Border mode | No | Yes | Yes | Yes |
| Private Access | No | Yes | Yes | Yes |
| Advanced features | No | No | See in-app | See in-app |
| Subscription required | No | Yes | Yes | Yes |
Connectivity and grace period
If your device cannot verify your subscription status due to connectivity loss, paid-tier features remain available for up to 14 days without successful verification. After that, higher-tier features may become restricted until connectivity is restored and the subscription is confirmed.
For payment failures, Google Play manages its own retry window. Nötkey follows the entitlement status reported by Google Play. If Google Play marks the subscription as expired after failed payment retries, Nötkey will downgrade your tier accordingly.
Nötkey is designed for use in contexts where connectivity may be intermittent, including remote or constrained environments. The grace period ensures a temporary loss of internet does not abruptly affect your device's security posture.
Downgrade behavior
If a paid subscription expires or is cancelled:
- Your account reverts to the Free tier.
- Features exclusive to your previous tier will no longer be accessible.
- The data in your Private Profile is not deleted by the tier change alone.
- You can re-subscribe to restore your previous tier's features. Existing profile data is preserved.
If your subscription lapses, higher-tier features stop functioning until the subscription is renewed.
What no tier includes
Pricing
Pricing for each tier is displayed in the Google Play Store. All subscriptions are billed and managed through Google Play. Subscription cancellation and refund eligibility are governed by Google Play's policies. Subscriptions renew automatically at the end of each billing period unless cancelled before the renewal date.