Someone has to write it
Bonsai gives you a template 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.
CompareCyna vs Bonsai
Cyna vs Bonsai
Where work is won.
Bonsai gives you a template and an approval click. Cyna drafts the proposal in your firm’s voice, collects a real signature, and freezes exactly what was agreed.
Why teams switch
Three reasons teams move to Cyna.
All three are about winning the work.
A signature, not a click
Bonsai proposals are accepted with a one-click e-approval. Cyna collects a real drawn or typed signature behind an email-verification gate, with audit fields on every one.
One priced object
In Bonsai an accepted proposal spawns a separate invoice, and a deposit spawns another. In Cyna the accepted proposal is what gets charged and what the invoice freezes from.
Feature by feature
How the two compare.
| Capability | Bonsai | Cyna |
|---|---|---|
| AI writer inside the product | No — bring your own via their MCP server | Yes |
| Drafts in your firm’s own voice, from proposals you’ve won | No | Yes |
| Brand captured from your website | No — manual logo and colours | Logo, colours and fonts, at signup |
| Their branding off your client documents | Premium plan | Always |
| Proposal accepted by | One-click e-approval | Signature, single or multiple |
| Multi-signatory | One co-signer | All or any policy |
| Acceptance record | Locked; IP and dates | Structured snapshot + content hash |
| Audit fields on every signature | IP and dates | Time, hashed IP, device, verified email |
| Total checked against line items before send | Not documented | Yes, server-side |
| Milestone billing schedule | Not a first-class model | Yes |
| Invoices frozen from the accepted proposal | A separate invoice is created | Yes |
| Read analytics | Seen receipts only | Section dwell time and a funnel |
Bonsai details taken from their own pricing and product pages, July 2026.
The real difference
An approval click isn’t a signature.
Cyna freezes exactly what was signed.
- Signed, not clicked
- Draw or type a signature on a tokenized link with no account, behind an email-verification gate.
- Frozen the moment they sign
- The structured document, pricing, brand tokens and a rendered copy are captured with a content hash.
- Audit fields on every signature
- Signed-at time, hashed IP, device and verified email, aligned with ESIGN and UETA.
Statement of Work2 signers · $24,000
SignedSentMon
ViewedMon
SignedWed
Switching
Split the job, don’t migrate.
Win the work here, run it where it runs.
Bring three proposals
Paste in three you have won so Cyna learns your voice, and keep them as templates.
Send and get paid in Cyna
Signature, deposit on acceptance and the milestone or retainer schedule all run from the accepted proposal.
Keep delivery where it is
Projects, tasks and timesheets stay in whatever your team already uses. Nothing to migrate.
Ask an AI
Ask an AI instead.
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.
Sources it's pointed at
Cite this pageCyna. "Cyna vs Bonsai." cyna.so. https://cyna.so/compare/bonsai
FAQ
Cyna vs Bonsai, answered.
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. Their AI story is Bonsai MCP: connect your own Claude, ChatGPT or Gemini and let it act on your Bonsai data — useful, and a different thing from drafting a proposal in your firm’s voice.
Bonsai accepts a proposal with a one-click e-approval, and their help centre confirms the accepted document locks, with an audit trail of IP addresses and dates; their signature guide is careful to say they produce an electronic rather than a PKI-based digital signature. Cyna collects a real signature behind an email-verification gate, then freezes the structured document, pricing and brand tokens with a content hash, plus signed-at time, hashed IP, device and verified email.
Not today. Bonsai runs project delivery, timesheets, budgets and bookkeeping, and Cyna’s delivery layer is still rolling out. Cyna replaces the proposal and billing half, and a lot of agencies run both on purpose.
Bonsai, on the headline: entry is $9 a user billed annually against our $25, and the plan most agencies buy is $29 against our $49. Note their Elite plan carries a three-user minimum, and removing Bonsai branding from client-facing documents needs Premium.
When the proposal and the money are the job — you scope, you send, you get paid, and delivery happens in whatever your team already uses.