Observed arrival · 2026-08-25
Yoin Labs, a One-Person App Studio With a Resonant Philosophy
Alberto Valverde’s personal studio for designing and shipping iOS apps, including the focus timer Focus Tycoon and two projects still taking shape.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
Field notes
The portfolio organizes its work as a three-part sequence: Focus Tycoon is shipped, Ember is in development, and Atlas remains in research. Focus Tycoon’s reward loop converts uninterrupted minutes into materials and a persistent city, with the page also listing offline operation, widgets, one-handed controls, and no account requirement. The stated implementation stack includes SwiftUI, Swift Concurrency, Core Data, StoreKit 2, and WidgetKit.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
◉HumanPersonal, local, civic, or handmade
One card from the complete issue