# Devices

Devices in Wallet-as-a-Service (Palisade) are used to secure private key shares, approve transactions, and generate signatures. They are essential for securing and using MPC wallets and are optional for approvals.

## Overview

When a user makes a transaction requiring an MPC quorum signature, the relevant device(s) receive a notification requesting that the user sign. Wallet-as-a-Service (Palisade) supports two types of devices:

- **Mobile devices** - Use the Wallet-as-a-Service (Palisade) Mobile app for manual transaction approvals and signatures
- **CloudSign devices** - Run on cloud instances for programmatic signing operations


## Key features

- **Secure key storage** - Devices securely store private key shares using MPC technology
- **Transaction signing** - Sign transactions from anywhere with robust security
- **Approval notifications** - Receive real-time notifications for pending approvals
- **Multi-device support** - Link multiple devices to your organization


## Getting started

1. Learn about the [types of devices](/products/wallet/user-interface/devices/types-of-devices) available
2. Follow the guide to [add a device](/products/wallet/user-interface/devices/adding-a-device) to your organization
3. For automated signing, [set up CloudSign](/products/wallet/user-interface/devices/set-up-and-run-cloudsign)


Mobile app availability
The Wallet-as-a-Service (Palisade) Mobile app is currently available on iOS. An Android version is coming soon.