Not apps. Pieces.
The short list every Kynth app is arranged from — and the engine it lives in.
Underneath every app is the same short list: send a message, take a payment, understand a sentence, remember. We built those once — so now we don't build apps, we arrange pieces.
001 — Send a message
Email, SMS, or a live phone call — every app that reaches a person runs on the same messaging piece. The reminder an invoice app sends and the call a receptionist answers are one capability wearing different clothes. We built reaching a human once; every app since has inherited it.
002 — Take a payment
Charge a card, chase an invoice, issue a refund, fight a chargeback. One payments piece under every money app. Moving money is a hard problem exactly once — after that, any app that touches revenue snaps onto plumbing that already works.
003 — Understand a sentence
Read a contract, sort an inbox, answer a caller mid-sentence. Inference is wired into everything we build — not a chat box bolted on the side, but the piece that lets an app act on what someone actually said.
004 — Remember
Every app remembers what happened yesterday and picks up exactly where you left off. Memory isn't a feature of one app — it's a piece of the machine, so context follows the work across sessions and across apps.
The engine
The pieces have to live somewhere. Kynth Core is the engine they live in — the same engine under every app we ship. It exists because of a bet: solve each hard problem once, keep it running in production, and reuse it forever — instead of rebuilding messaging, payments, inference, and memory inside every product like everyone else does. Every Kynth app is an interface to Core, arranged from the list above.
It isn't a wrapper we ship to other people; it runs Kynth's own company first. Customer zero — we run on it too. Developers can put the same engine to work at api.kynth.studio, the depth behind each app is published in the Depth Ledger, and the founding argument lives in the manifesto.
005 — The next piece
The list keeps growing. When a new piece lands — a new way to reach someone, a new thing an app can understand — it lands under every app at once, and a whole class of products goes from impossible to an afternoon. That's the point of arranging instead of building: the ceiling isn't a roadmap, it's the list. Any app you can name is an arrangement away.
Browse the apps live today — every one of them is this same short list, recombined.