Chalmsy is AI-native business management for businesses that run on client work - florists, event planners, wedding and event venues, interior designers, consultancies, construction and trades.
Most business software bolted an AI feature onto an existing product. Chalmsy was built the other way round: the AI is what you work with, and the software is what it works on.
The thread: an enquiry arrives in your inbox. Chalmsy drafts the proposal in your own voice - learned from proposals you have already sent - and prices it from your own rates, materials and markup rules rather than a generic template. You review it and send it. The client reads it on a branded page, comments, asks for changes, and accepts. Accepted work becomes a project, then an invoice, then a line in your books. Nothing is re-typed between tools.
Included: quoting and estimating, proposal versioning and change orders, online acceptance, deposits and staged payment schedules, automated follow-ups on unanswered quotes, client CRM and pipeline, project tracking, invoicing, receipt capture, a categorised ledger, live profit and loss, and a QuickBooks Online sync. Gmail, Google Calendar and Google Drive connect in one click, so email, meetings and files stay where you already work.
It wears your brand, not ours. Your logo, colours and typefaces dress the workspace and every proposal, invoice and PDF that leaves it, on your own subdomain. Clients see your business.
Pricing is per business, not per seat: $15, $59 or $199 a month with seats included, plus a bespoke Atelier tier. Starter is free for 21 days and a card is taken at signup. Moving your data across from your current tools is done for you, at no charge, on every plan.
A startup from the United States that is founded by Brandon Cavallaro.
AI proposal drafting
Paste an enquiry and a full proposal comes back, written in a voice learned from your own sent proposals and costed from your own rates
White-label branding
Your logo, colours and typefaces on the workspace, every client document and your own subdomain โ clients never see Chalmsy
Free managed migration
We move your clients, past proposals, invoice history and books across from your old system, included on every plan
Most business software added an AI feature to an existing product. Chalmsy was built the other way round: the AI is what you work with, and the software is what it works on.
The practical difference is that it learns your business instead of asking you to configure it. It drafts proposals in a voice learned from proposals you have already sent, and prices them from your own materials, labour rates and markup rules rather than a generic template.
And the thread does not break. An accepted proposal becomes a project, then an invoice, then a line in your books, with nothing re-typed between tools.
It also wears your brand rather than ours. Your logo, colours and typefaces dress the workspace and every document that reaches a client, on your own subdomain.
The usual setup is three tools: a front-office suite for proposals and payments, a spreadsheet or trade calculator for costing the actual work, and an accounting package for the books. They do not talk to each other, so the same job gets typed in three times.
Chalmsy covers that whole span in one thread, and prices the work from your real costs rather than leaving the arithmetic to a spreadsheet at eleven at night.
Two practical differences. Seats are included in the plan price, so growing the team does not multiply the bill. And moving your data across - clients, past proposals, invoice history, price lists, brand - is done for you at no charge on every plan, while your current system keeps running.
Where the alternatives are still ahead: they have far more third-party integrations and years more polish. We publish an honest comparison rather than pretending otherwise.
Small and mid-sized businesses that quote bespoke work rather than sell a fixed catalogue: florists, event planners, wedding and event venues, interior designers, consultancies, construction and trades.
Typically one to twenty people and owner-run, where the person who wins the work is also the person who prices it, invoices it and reconciles it at month end. They are usually replacing a spreadsheet, an accounting package and a lot of evening admin.
Chalmsy needs a Google account - Gmail or Google Workspace - because proposals and invoices go out from the business's own address rather than a no-reply robot. If the business email lives on Microsoft, Chalmsy is not the right fit yet.
Chalmsy began as software for one business that needed it and could not buy it. A floral studio was quoting bespoke work from spreadsheets and memory, and every tool on the market either priced a fixed catalogue or assumed you had a sales team.
So it was built for that business first: proposals in her own voice, priced from her own stem costs and markups, wearing her own brand rather than a vendor's.
Once it worked, the interesting part was how little of it was really about flowers. An enquiry, a bespoke price built from real costs, a document that has to look like you, then an invoice and a set of books - that is equally the shape of an event planner, a venue, an interior designer, a consultancy and a builder.
So the business-specific parts became templates and Chalmsy became the product. That first studio is now simply one tenant on it.
Postgres on Supabase, with row-level security doing the tenant isolation at the database rather than in application code, and TypeScript edge functions for anything that touches a third-party API.
The front end is a progressive web app, installable on Windows, macOS, iOS and Android. Hosting is on Vercel.
The AI is Claude, by Anthropic. It drafts; a person always reviews and sends, and customer workspace content is not used to train models.
Integrations: Google Workspace (Gmail, Calendar, Drive), QuickBooks Online and Stripe. Sign-in is Google OAuth, so there is no Chalmsy password to steal.
We have collected here some useful links to help you find out if Chalmsy is good.
Check the traffic stats of Chalmsy on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.
Check the "Domain Rating" of Chalmsy on Ahrefs. The domain rating is a measure of the strength of a website's backlink profile on a scale from 0 to 100. It shows the strength of Chalmsy's backlink profile compared to the other websites. In most cases a domain rating of 60+ is considered good and 70+ is considered very good.
Check the "Domain Authority" of Chalmsy on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.
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