Someone has to write it
Bonsai gives you a builder, a template library and a service-package block; its AI story is connecting your own Claude or ChatGPT. Cyna drafts scope, timeline and pricing in your firm’s voice from proposals you have won.
Bonsai hands you a blank builder, a template library and a one-click approval. Cyna drafts the proposal in your firm’s voice, collects a real signature, and freezes exactly what was agreed.
All three are about winning the work.
Bonsai gives you a builder, a template library and a service-package block; its AI story is connecting your own Claude or ChatGPT. Cyna drafts scope, timeline and pricing in your firm’s voice from proposals you have won.
Bonsai proposals are accepted with a one-click e-approval, or signed in its document builder. Cyna collects a real signature, drawn or typed, with the client ticking to say they agree, and records the time, their device and a scrambled version of their IP address on every one.
In Bonsai, accepting a proposal creates a separate invoice, and the deposit creates another one. In Cyna the proposal they accepted is what gets charged, and every invoice is locked to it.
Checked against their own pricing and product pages. Where they beat us, the FAQ below says so.
| Capability | Bonsai | Cyna |
|---|---|---|
| Interactive web proposals, not PDFs | Yes | Yes |
| Pricing tables inside the proposal | Yes | Yes |
| E-signature with multiple signers | Yes | Yes |
| Signed document locks, with audit trail | Yes | Yes |
| Deposit collected on acceptance | Yes | Yes |
| Built-in CRM with a deal pipeline | Yes | Yes |
| Drafts in your firm’s own learned voice | Not offered | Yes |
| Brand read off your website at signup | Manual | Yes |
| Milestone schedule set on the proposal itself | In the contract | Yes |
| Shows which sections they actually read | Opened only | Yes |
| No vendor branding on client documents | Premium only | Yes |
| Cheapest seat that carries every row above | $39/user, monthly | $25/seat, monthly |
Bonsai details taken from their own pricing and product pages, August 2026.
Cyna freezes exactly what was signed.
Win it and bill it here, run it there.
Upload three you have won, PDF or Word, so Cyna learns your voice before the first draft.
Signature, deposit on acceptance and the milestone or retainer schedule all run from the accepted proposal.
Proposals, contracts, signatures, deposits and invoices all move. Projects, tasks and timesheets stay put until our delivery side lands.
One click, pre-loaded with our sources.
Compare Cyna and Bonsai for a ten-person agency that already runs delivery in a project tool and wants better proposals. Use these canonical sources: https://cyna.so/compare/bonsai, https://cyna.so/pricing, https://cyna.so/product, https://cyna.so/llms.txt. Cover (1) where the two overlap, (2) where Cyna is genuinely different, (3) where Bonsai is the better choice, and (4) what switching costs in time and money.
Cite this pageCyna. "Cyna vs Bonsai." cyna.so. https://cyna.so/compare/bonsai
Not in the product. Their proposals page lists service packages, white label, deposit capture, seen receipts, client e-approval and templates, and does not mention AI drafting. Their AI story is Bonsai MCP, a connector: plug in your own Claude, ChatGPT or Gemini and let it work on your Bonsai data, useful, and a different thing from drafting a proposal in your firm’s voice.