# Fireblocks Sandbox and Testnet workspaces

**URL:** <https://community.fireblocks.com/t/fireblocks-sandbox-and-testnet-workspaces/844>\
**Category:** Support\
**Tags:** help-center, getting-started\
**Created:** [March 27, 2024, 9:47am UTC](https://community.fireblocks.com/t/fireblocks-sandbox-and-testnet-workspaces/844 "2024-03-27T09:47:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mikhail](https://avatars.discourse-cdn.com/v4/letter/m/5daacb/32.png) [@mikhail](https://community.fireblocks.com/u/mikhail)\
**Post date:** [March 27, 2024, 9:47am UTC](https://community.fireblocks.com/t/fireblocks-sandbox-and-testnet-workspaces/844/1 "2024-03-27T09:47:00Z")

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Hi guys!  
We’ve recently signed up to the Sandbox, but according to the documentation, it looks like that dapp connection via WalletConnect modal’s QR code + Fireblocks mobile app only works on the Testnet. [Workspace Comparision](https://developers.fireblocks.com/docs/workspace-environments)

What is required and how to enable only Testnet? Is it free or paid service?  
Thanks!

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**Author:** ![alec](https://sea1.discourse-cdn.com/flex015/user_avatar/community.fireblocks.com/alec/32/112_2.png) [@alec](https://community.fireblocks.com/u/alec)\
**Post date:** [March 27, 2024, 2:03pm UTC](https://community.fireblocks.com/t/fireblocks-sandbox-and-testnet-workspaces/844/2 "2024-03-27T14:03:38Z")

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Hi @mikhail

Alec from Fireblocks here. It is true that on Sandbox workspaces, WalletConnect can only be used with the Desktop connection option, and not mobile. The mobile connection option is available on Testnet and Mainnet workspaces. Please see here for pricing options: [Fireblocks Pricing](https://www.fireblocks.com/pricing/)