The Hardware
Grass Blade.
£27
The keychain companion. No battery, no charging, no excuses. Clip it to your keys and your app restrictions travel with you. GPS zone locking activates the moment you leave home. It can't be deleted. It can't be cheated.
Pre-order — £27Features
- Passive NFC — zero battery, ever. No charging, no maintenance, nothing
- Photoluminescent edge detail — glows in low light, no power needed
- GPS zone locking handled entirely by the Grass app using your phone's GPS — the Blade itself requires no power or connectivity for this
- Keychain form factor — goes everywhere you do
- Waterproof
- Can't be deleted or bypassed
- Compatible with the Grass app
Specifications
Dimensions
72 × 32 × 8mm (tapers to 4mm at tip)
Material
Premium matte composite
Connectivity
Passive NFC
Power
Zero — no battery required, ever
Water resistance
Waterproof
Compatibility
iOS 15+
The Grass Blade contains no battery, no LED, and no active electronics of any kind. It is a fully passive NFC tag. GPS zone locking is managed entirely by the Grass app using your phone's built-in GPS — the Blade simply needs to be with you. The edge glow is photoluminescent and requires no power source.