Fold it open.See what we build.
MY ARCS is a software company that designs, builds and operates games, native apps and SaaS with a single team. Two games that turn the iPhone Duo hinge into play, a Mac video downloader, a booking SaaS for salons, a Google Ads audit service for US businesses — all our own.
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What we make and run
Two games, one Mac app, two SaaS products. Design, engineering, art and operations all happen in-house.
DUO MAGIC
Every fold is a reveal.
A magic-performance app built for iPhone Duo. Learn six tricks, then let the fold, sound and haptics do the astonishing.
UNFOLD
The angle you open is the world you get.
A puzzle adventure where the fold angle itself is the mechanic. Between light and shadow, help Liyu recover her lost memories.
Vidnip
Paste a link. Get the video. Native on your Mac.
A native macOS web video downloader: auto-detect videos on any page, merge m3u8/HLS into MP4, resume and batch downloads, generate subtitles, send links from iPhone.
Yoyaku
Bookings and reminders, all inside LINE.
A booking SaaS for salons and relaxation studios in Japan. Customers book in seconds inside LINE; confirmations and reminders go out automatically.
SameSpend
Same spend. More customers.
Read-only Google Ads audits for US local service businesses. We match spend to paid jobs per campaign and show where to move the budget. $49 written audit in 2–3 business days.
From design to operations, one team
We do not split planning, design, engineering, art and operations across vendors. That is why a small team ships fast and the result feels like one piece.
Native iOS / macOS
SwiftUI, SpriteKit, RealityKit, StoreKit 2, Core Haptics. New foldable APIs from day one.
Our own engine layer
Rules evaluated deterministically in a pure Swift package with no UI dependency. JSON levels, schema validation, replay verification.
Art and sound in-house
Characters, backgrounds and icons, procedurally generated music, sound effects synthesised on the device.
Web / SaaS / infrastructure
TypeScript, Node.js, PostgreSQL, Docker, Kong. Over ten services running on our own servers.
Shipping
App Review, StoreKit, Stripe billing, three languages, store assets — end to end.
AI in the process
Spec-driven development with AI agents, so design, implementation and QA iterate fast.
Recent releases
Let us build the next one together.
Games, apps, business systems — talk to us from the idea stage.
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