Krit vs Bolt: a builder that ships apps, a design layer that keeps them yours

A builder and a design layer are not the same tool

Bolt's bet is speed to running software. You describe an app, it scaffolds the whole project, and you are clicking through a live preview minutes later. For zero-to-running, that is hard to beat, and I am not going to pretend otherwise.

But somewhere in that chat thread, hundreds of design decisions get made, and nobody is really making them. The colors, the spacing, the type scale, the tone of the whole product all fall out of the model's defaults. Krit exists for exactly that gap. It is the design layer for agent-built apps: an infinite canvas where AI agents like Claude Code and Cursor design real interactive screens deliberately, your brand is captured as rules that persist, and consistency holds as the product grows. Bolt builds the app. Krit is where it stops looking like everyone else's.

Design by chat thread loses state

In Bolt, the design of your app is the residue of a conversation. There is no place where the decisions live, only a scrolling history of prompts and regenerations. Ask for a darker header on Tuesday, and by Thursday the model has quietly reinterpreted it while doing something else. That is not a Bolt bug. It is what happens when design has no home other than a chat log.

Every regeneration is a small roll of the dice. You ask it to fix the checkout flow, and the buttons on three other screens change shape. You never chose the new look, and you cannot point to where the old one was decided, so you cannot even ask for it back precisely. Design by conversation means the state of your design is the model's short-term memory, and that memory does not care about your brand.

A canvas fixes this in a boring, structural way. On Krit the screens sit there, persistent, real, and inspectable. The agent works on the design where you can see it, decisions accumulate instead of evaporating, and a change to one screen is a change to one screen.

Why every prompt-built app looks the same

You have seen the look. Same gradient hero, same rounded cards, same purple glow, same three-column feature grid. When one model generates everyone's UI from its own defaults, everyone converges on the same app. Your users notice before you do, and what they read into it is not flattering: this was generated, not considered.

This is not because Bolt is careless. It is because a builder's job is to get you running, and taste is not on that critical path. The model reaches for its statistical center every time, and the statistical center of all UI is generic.

Escaping that look takes deliberate design decisions, made once, written down, and enforced. That is what a brand captured as rules gives you. On Krit the agent does not start from the model's defaults, it starts from yours, and every new screen it designs has to answer to them.

What a persistent design layer actually changes

The word that matters is persistent. Your brand rules, your screens, your decisions survive between sessions and between agents. Claude Code today, Cursor tomorrow, any MCP-capable agent after that, all designing against the same system instead of each one improvising from scratch.

It changes how iteration feels, too. Instead of one thread mutating one app in place, the agent lays variants of a screen next to each other on the canvas. You compare, you pick, you say why, and that why becomes part of the system. That is design as a practice, not design as a side effect of building.

And when a direction is right, you take it with you. Krit exports clean HTML/CSS, React, Next.js, or Vue, so the design you settled on becomes code your app can actually use. The tenth screen you design looks like it belongs to the same product as the first, which sounds like a small thing until you have shipped an app where it is not true.

Better together than head to head

Honestly, this is less a versus page than the URL suggests. Bolt and Krit are complementary on building and opposed on exactly one question: where does design live? Bolt's implicit answer is inside the chat thread. Mine is that design deserves its own layer, with its own memory, outside any single conversation.

So the workflow I would actually run: prove the idea in Bolt, because nothing gets you to a running app faster. The moment the idea is real and the generic look starts to cost you, give the design a home. Decide the system on Krit's canvas, capture the brand as rules, and let your agents design against it from then on. The builder gets you to an app. The design layer gets you to your app.