The [d]App Studio

locally sourcing code in NYC for 10 years


We are engaged in multiple projects, from iOS to Solidity, most of which are now Open Source


An Objective C collection of useful functions for iOS, macOS, tvOS, and watchOS apps

View source on GitHub


A framework supporting the development of cross-Apple-platform apps using Swift

View source on GitHub

Dave's Tiles Puzzle

Dave's Tiles Puzzle is an Open Source SwiftUI project for iOS 15 and higher. More info here.

View source on GitHub


A 2nd-generation Xcode project template with design patterns for developing apps on Apple-based platforms using Swift

View source on GitHub


Solidity contract that provides smart contract functionality to official holders of TwoBitBears, the series of 5000 Hyper-Realistic Algorithmically Generated Crypto Collectable Bears Minted on the Ethereum Blockchain

View source on GitHub


Solidity-based libraries for supporting ERC-721 and ERC-1155 smart contracts

View source on GitHub


Solidity contract for accepting donations with attributes for the cause. Used by the donate widget at the top of this page!

Also includes unit tests that provide 100% coverage across all files

View source on GitHub

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