#391·SUBWALLET EXTENSION - MILESTONE 3: SubWallet 3rd proposal: Hardware wallet integration (Ledger, Parity Signer, Keystone), Built-in XCM transfer between Polkadot & Kusama and parachains, In-app staking for DOT and KSM, Support USDT on Statemint, Fiat on-ramp and more

Dear Polkadot community and Councilors,

This proposal aims at claiming funding from the Polkadot Treasury for work that has been done in SubWallet's Milestone 3 in the period from June to September 2022.

SubWallet team started building in November 2021 and we have been very focused and building fast since then. We released the SubWallet extension version on all popular browsers (Google Chrome, Firefox, Brave, Edge) in February 2022 and SubWallet mobile app public testing phase in November 2022, and keep releasing our product updates on a bi-weekly basis.

SubWallet got Polkadot treasury proposals for Milestones 1 approved in July 2022 and Milestone 2 approved in September 2022. Below is a list of tractions and features we have completed after our Milestones 1 and Milestone 2:

• 70+ networks supported (relaychains, parachains & solochains) in the Polkadot & Kusama ecosystem
• 15,000+ organic installs and 12,000+ weekly active users on Chrome Store & Firefox Store
• Our users come from 80+ countries.
• 6,500+ community members on Twitter, Telegram, and Discord
• A member of the Substrate Builders Program
• Working with 70+ teams in the ecosystem with the ultimate goal of bringing the best UI/UX for users.
• Create, restore and import accounts
• Manage multiple accounts
• Manage multi-chain assets
• View transaction history
• Manage Crowdloan portfolio
• Manage NFT
• Compatible with Metamask and Support EVM assets
• Substrate Connect - Light Client
• Built-in XCM transfer
• Custom network, custom endpoint
• And more: Milestone 1 & Milestone 2
• SubWallet on Polkadot Community Call on August 18, 2022: Link

As our vision is to become a Multiverse Gateway for the Polkadot & Kusama ecosystem that helps onboard more users to the ecosystem, we continue to add new features to SubWallet based on the development of the ecosystem and feedback/suggestions from our community.

This proposal aims at claiming funding from the Polkadot Treasury for work that has been done in SubWallet's Milestone 3, that includes the features discussed in details below:

Complete set of the proposal: (See proposal)

• Support Ledger for Polkadot & Kusama (Link)
• Support Parity Signer and other QR Signers (Link and Link)
• Support In-app Staking for Polkadot & Kusama (Link)
• Support XCM transfer between Polkadot and Kusama to parachains (Link)
• Integrate USDT on Statemint: Display, Receive and Transfer (Link)
• Integrate Transak and allow users to buy DOT, KSM from fiat (Link)
• Update caching mechanism to optimize performance
• And more

Our tractions as of March 2023

• 140+ networks and 400+ tokens supported (relaychains, parachains & solochains) in the Polkadot & Kusama ecosystem
• Browser extension: 43,000+ organic installs on Chrome Store & Firefox Store.
• Mobile app is in the public testing phase on both iOS and Android. 5,000+ installs (Link)
• Our users come from 100+ countries.
• 8,500+ community members on Twitter, Telegram, and Discord
• Completed the Substrate Builders Program
• Working with 150+ teams in the ecosystem with the ultimate goal of bringing the best UI/UX for users.
• SubWallet on Polkadot Community Call on November 24, 2022: Link
• SubWallet on Polkadot Community Call on January 20, 2023: Link
• We would love to hear feedback/recommendations from the community and Councils.

All the best,
SubWallet Team