TitleProtocol v0.0.2
StatusPaid · Public Beta · Live
DescriptionFind your focus.
Timeline2025 — Present
Price$4.99
RoleProduct, Design, Engineering, Marketing, Sales
DetailsNoise generator with particle effects and gesture controls to blend noise color between white, pink, brown noise and a 100 Hz to 3 kHz tone sweep.
TitleCache v0.0.0
StatusPaid · Private Beta · In Development
DescriptionAI CFO.
Timeline2025 — Present
PriceTBD
RoleProduct, Design, Engineering, Marketing, Sales
DetailsVercel AI SDK, o3, Next.js, Supabase
TitleSoho v0.0.4
StatusPaid · Public Beta · Live
DescriptionStyle advice and shopping recommendations with a snap.
Timeline2024 — Present
Price$99 per year with 3 a day free trial.
RoleProduct, Design, Engineering, Marketing, Sales
DetailsGPT-4o-mini wrapper built with Expo and React Native for iOS styled with Nativewind. Powered by Next.js, Vercel, and Supabase.
TitleVoid
StatusPaid · Public Beta · Live
DescriptionMinimalist notepad with powerful features.
Timeline2024 — Present
Price$99.99 for lifetime access.
RoleProduct, Design, Engineering, Marketing, Sales
DetailsPowered by iCloud and compatible across all Apple devices. An attempt in minimalism after dozens of rejections.
TitleRams
StatusTestFlight · Expired
DescriptionIndustrial designer in your pocket.
Timeline2024 — Present
PriceFree
RoleProduct, Design, Engineering
DetailsSwiftUI Flux wrapper powered by Replicate.
TitleLightGPT
StatusPrototype
DescriptionLLM on epaper.
Timeline2022 — 2022
PriceNot for sale
RoleProduct, Design, Engineering
DetailsModified Light Phone with a custom-built AI assistant.
TitleMulti Vault
StatusTestFlight · Expired
DescriptionKeyless Bitcoin vault for your Apple devices.
Timeline2021 — 2024
PriceNot for sale
RoleFounder, CEO, Product, Design
DetailsMulti party computation Bitcoin wallet designed and engineered for macOS, iOS, and iPadOS. Engineering by Jud Stephenson and Brian Armstrong.
TitleMulti Key
StatusPrototype
DescriptionWireless Bitcoin Authenticator.
Timeline2022 — 2023
PriceNot for sale
RoleFounder, CEO
DetailsTransaction signing and recovery device for your Bitcoin wallet. Engineering by Jud Stephenson and Akbar Dhanaliwala. Design by Joe Tsao and Maxime le Grelle.
TitleSudo
StatusConcept
DescriptionMagSafe, air-gapped, cold storage Ethereum wallet for iPhone.
Timeline2021 — 2022
PricePriceless
RoleProduct, Design
DetailsOrigin of Multi. Rendering by Fahredin Kosumi.
TitleCash App
StatusApp Store · Live
DescriptionDo more with your money.
Timeline2017 — 2021
PriceFree
RoleProduct Design Principal
Detailsv3, v4, Vision, Architecture, Bitcoin, Stocks, Support, Dark Mode, Design Critique, Design Review, Design System, Design Principles.