Last week we published the catalog — every tool we ship, what it does, what it costs. This is the same shelf read from the other end. For each product, the limit comes first: the thing it does not do, the case it is wrong for, the buyer who should close the tab.
That is a strange way to write about your own products, so here is the reasoning. A refund is more expensive than a lost sale — not in money, in trust. Someone who buys the wrong tool, discovers the gap on day three, and asks for their money back has had a bad week because of something we could have told them in one sentence. And a buyer who reads a limit and thinks that's fine, I don't need that is worth more than one who never saw it, because nothing later can surprise them.
Every limit below was read out of the live product this morning, the same way the prices were. Where a tool genuinely has no ceiling worth naming, we say so rather than inventing modesty.
The Developer Labs
Three free, browser-based workspaces. They share one limit, and it is the most important sentence on this page.
Nothing you make in a Lab is saved. Anywhere.
Brand Token Studio, API Contract Lab, Mock Data Lab
There are no accounts in the Labs. There is also no autosave, no local draft, and no project history — not on our servers and not in your browser. Your work exists for exactly as long as the tab does. Close it, refresh it, or crash it, and the work is gone with no way for us to recover it, because we never had it.
So use the export button. Each Lab can hand you a file, and that file is the only durable artifact the Labs produce. If your instinct is to treat a Lab like a document you'll come back to tomorrow, that instinct will cost you an afternoon.
The upside of the same fact: nothing you paste into a Lab reaches us. It never leaves your machine. For sketching against real payloads or real brand values, that is a feature, not a consolation.
The Design Pipeline
It will not invent a look for you, and the free tier is one generation — not one a month.
UI Kit Generator
This is a configuration engine, not a creative partner. You choose a style preset, set colors, radius, and shadows, pick component groups, and it renders a coherent system from those settings. What it will not do is answer the question what should my product look like? — you have to arrive with an answer, or at least a preference. If you are hoping to describe a vibe and receive a design, this is the wrong door.
Two more edges worth knowing before you start. The free tier is a single generation, total, and it exports HTML and CSS with the core component bundle rather than the full set. And Unlimited is $24.99 per month, not a one-time purchase — the only subscription in the design pipeline. Starter, at $14.99, is the one-time option.
What you see is what ships. There is no generation step.
UI Kit Packs
Packs are finished goods. You are buying a specific, pre-built component set as it appears in the preview — not a starting point that a generator will then tailor to your brand. Anything you want changed, you change yourself in the code after download.
That makes the preview the single most important part of the purchase. If the preview is close but not right, buy the Generator instead and configure it; if the preview is right, a pack is cheaper and instant. Core kits are $9.99, Studio Exclusive kits $14.99, and the $49.99 Complete Bundle covers all eight styles at once for buyers who would rather not choose.
One component at a time, and every attempt spends a credit.
PromptUI
PromptUI builds a single component from a description. It is not a system generator, so asking it for “a design system for a fintech dashboard” is a category error — that request belongs to the Generator. Ask it for one card, one pricing table, one nav bar.
The credit model is the part people misread. A generation is consumed when it runs, not when you like the result. A prompt that comes back wrong has still cost you one. Free includes a generation to try it, the Starter pack is a one-time $19 for five, and Unlimited is $39 a month. If you expect to iterate heavily on wording — and description-driven tools invite exactly that — count on spending more than five.
The Backend Pipeline
No migration tooling. None. That one is on you.
ShipKit
ShipKit gives you a structured FastAPI application with JWT auth, Stripe Checkout, an admin foundation, and MySQL models via SQLAlchemy — bought once, owned outright, $29 for Starter and $79 for Professional. What it does not include is any schema-migration layer. There is no Alembic in the box, no migration directory, no upgrade command. The models are defined; evolving them safely once you have production data is your problem to solve.
We would rather say that plainly than let you discover it during your first schema change. If you want the craft independent of any kit, our guide to zero-downtime migrations with Alembic is vendor-neutral and applies cleanly here.
Two smaller edges. It is MySQL — if your team is a Postgres shop, budget for the swap rather than assuming it. And the deploy scripts and CI/CD templates are Professional-tier only, so the $29 Starter is source code you deploy by your own means.
The Standalones
Windows only, and it never touches your cloud library.
PicSift
PicSift is a native Windows desktop application. There is no macOS build, no Linux build, and no web version. This is the limit most likely to catch someone out, because the rest of the page reads like any other software purchase — so if you are on a Mac, stop here.
The second limit follows from the first: it works on files on your machine. It does not connect to Google Photos, iCloud, Dropbox, or any other hosted library, and it does not sync between the PCs you install it on. Pointing it at a folder your cloud client happens to mirror is not the same thing as deduplicating your cloud library, and we would not recommend treating it as such.
Pricing reflects machines, not features: $29 activates one PC with a year of updates, $59 activates as many as you need with lifetime updates, and both include everything.
It writes and schedules. It will never tell you how a post did.
PostPilot
PostPilot generates on-brand posts from a brand profile, lets you review and queue them, and on Unlimited posts them automatically on a schedule. It is a composition and scheduling tool, full stop. There is no analytics side: no impressions, no engagement rate, no best-time-to-post recommendation, no reporting of any kind. If your actual problem is I don't know what's working, PostPilot does not answer that question and is not trying to.
The other boundary is reach. Automatic posting goes to X and only X. Content you generate for anywhere else is yours to copy out and post by hand, which is a perfectly good workflow — just not an automated one.
Free gives you three lifetime preview credits, the one-time $9.99 Starter unlocks 30 generations, and Unlimited is $24.99 a month.
It licenses software you already sell. It does not sell it for you.
Chiave
Chiave is the one B2B product here, and the one most often approached for the wrong job. It generates and validates license keys, manages customers, and keeps audit logs. It is not a storefront, not a payment processor, and not a distribution channel — you still need somewhere to take the money and something to deliver the download. Chiave starts the moment after a sale, not before it.
It is also the lineup's most expensive commitment, and a recurring one: $49.99 a month for Starter and $99.99 a month for Unlimited, with annual billing at $499.99 and $999.99. Every other tool on this page can be bought once or used free; this one cannot, because it runs a live service on your behalf. The 30-day trial requires no credit card, which is the right way to find out whether that trade makes sense for you.
Two Things Not on This Page
We build Shopify apps as well, which run on their own terms and their own store listings rather than as part of this lineup. And Bravura, the Python GUI framework several of these tools descend from, is heritage rather than shelf stock — it is where the lineage starts, not something we would point a new buyer at today. Neither belongs in a fit guide to the current catalog, so neither gets a card here.
How to Use a Page Like This
Read the bold line under each product and nothing else. If none of them disqualify you, the catalog is a better guide than this article — go read the lineup, or the stack guide if you want to see how the pieces fit together. If one of them does disqualify you, we have done our job: you spent four minutes instead of $29 and a support ticket.
The limits above are not roadmap teasers. We are not promising that ShipKit will grow migration tooling or that PicSift will come to macOS. Some of them may change and we will update this page when they do — but a fit guide that reads as a wish list is worse than no fit guide at all, so everything here describes the software as it exists today, in July 2026, with the ceilings it actually has.
Start Where Nothing Is at Stake
The three Developer Labs are free, need no account, and never see your data. They are the cheapest possible way to find out whether the way we build tools suits the way you work.
Open Developer Labs