Probos

Inspiration

NFTs’ rapidly rising popularity and the need for convenient NFT portfolio management tools.

What it does

We created a wallet that supports not only fungible crypto tokens and coins but also NFTs, displaying all the necessary details about them including the current market price.

How we built it

Probos Wallet is a multicurrency crypto wallet app coming in handy with the world’s major cryptocurrencies, tokens, and NFTs.

It is built using the Flutter framework and is available on both the iOS and Android operating systems.

Challenges we ran into

We rewrote all the libraries that underpin the Probos Wallet dApp’s interaction with blockchains for the Flutter framework using the Dart language.

Accomplishments that we're proud of

Probos Wallet is a swift & stable app that can support EVM and not just blockchains.

We advanced and debugged the Pointy Castle library, one of the largest cryptographic libs. We added our cryptographer to the contributor list there.

We wrote BIP44 from scratch.

We created a large library to support all projects written for cryptography (there was a hex library, it can be completely replaced).

What we learned

We created a Dart library for the Tron blockchain. The lib that didn’t exist before. We also fixed the Bitcoin one.

We learned to develop our own web3 libraries for those blockchains that Dart lacks support for. This way, we created opportunities for the development of future mobile apps for blockchain interaction.

The user can interact with most dApps on the Ethereum, Polygon, and BNB Chain blockchains. This enables Probos Wallet to facilitate the availability of dApps by other development teams, helping their user bases grow.

The user can add any ERC20 tokens on the Ethereum, Polygon, BNB Chain, and Tron blockchains, which enhances global tokenomics.