A Nusii alternative for source-based agency proposals
Compare the work of drafting from client evidence with the work of assembling, reviewing, sending, and signing an agency proposal.
How does Gixo Arc compare with Nusii?
Gixo Arc is a Nusii alternative for agencies and consultants who want reviewable proposal drafts from client briefs, scopes, and RFPs, with approved-answer reuse and requirement review. Nusii offers proposal templates, pricing blocks, electronic signing, reminders, and integrations. It also supports drafting and rewriting through connected AI assistants. Compare how each workflow uses your source material, assigns review responsibilities, and delivers a buyer-ready proposal.
See what Arc helps your team review
Choose the proposal type, add the RFP, brief, notes, or prior work, then review a structured first draft before it reaches a client.
- 1Add source materialRFPs, briefs, notes, decks, and prior work
- 2Draft to the proposal typeSections and structure follow the real opportunity
- 3Review before deliveryYour team checks facts, scope, pricing, and commitments
Compare the proposal workflow and plan terms
| What to compare | Gixo Arc | Nusii |
|---|---|---|
| Drafting workflow | Source-file proposal drafts and approved-answer reuse | Templates and drafts created or rewritten through connected AI assistants |
| Review workflow | Requirement owners, evidence checks, and named review gates | Proposal collaboration and permissions; evaluate your required approval process |
| Pricing and signing | Structured pricing tables and simple electronic signing | Pricing blocks, online electronic signing, and payment integrations |
| Questionnaires | Response copies of supported Excel and Word questionnaires | Verify the exact questionnaire and return format with Nusii |
| Published monthly plans | Starter from $49/month; seat and feature tiers | Freelancer $29/month, Agency $49/month, Business $129/month |
| Evaluation | No-card 14-day Starter-level trial | 14-day trial; payment card required |
| Integrations | CRM push configured by Gixo, outgoing webhooks, and Lumen handoff | Published CRM, Zapier, payment, API, and AI assistant integrations |
Vendor information checked on : Nusii pricing · Nusii AI assistant capabilities · Nusii integrations. Check current vendor terms before purchasing.
Which workflow fits your team?
Evaluate Nusii when reusable proposal templates, signing, payment integrations, and delivery automation fit your agency. Evaluate Arc when turning client evidence into proposal drafts and managing RFP requirements are central to the job. Compare a real client brief, the finished buyer experience, and your review process in both tools.
Where a generated draft leaves a price as a bracketed placeholder, Arc keeps it visibly unresolved, as [commercial amount: to be confirmed] in an English proposal and in the proposal's own language otherwise, so the draft analyzer and the response-quality review flag it as placeholder text instead of it reading like a finished sentence. A price the draft writes out is not checked against your files, so confirm every figure.
Questions before you choose
Nusii comparison FAQ
Answers describe Arc's current workflow and the linked vendor information.How do Nusii plans and trials compare with Gixo Arc?
Nusii publishes monthly Freelancer, Agency, and Business plans at $29, $49, and $129 respectively. Its 14-day trial requires a payment card. Gixo Arc starts at $49 per month and offers a no-card 14-day trial at Starter level. Compare included seats and features on the current pricing pages; Arc Enterprise uses Azure Marketplace or a private offer.
Can Arc return a buyer questionnaire?
When the buyer issues a structured questionnaire as an XLSX or DOCX file, Arc deterministically writes the answers from your response workspace into a copy of that file, leaving the file you uploaded unchanged and preserving the workbook formulas, styles, and layout as well as Word content controls and response-table cells. A direct export writes each answered requirement whatever its review status; only an approved release requires every answered active requirement to be approved first. A preflight previews every target before writing and blocks on protected sheets, formula cells, merged cells, dropdown values the buyer does not allow, missing required or scored answers, and conflicting requirements, so a person still runs the final check and submits.
Do all Arc exports require approved answers?
No. A direct questionnaire export can include answered requirements that have not been approved. An approved release requires every answered active requirement to be approved and each approved review gate to match the current revision. Your team checks the buyer file and owns submission.
How does proposal acceptance differ from signing?
On a tracked link, the buyer can accept the proposal by entering a full name and a business email. The acceptance appears in your delivery history, and the proposal workspace keeps an acceptance record of that name and email, the time, and the proposal revision it covers. Where electronic signature is enabled, the buyer can choose Accept and sign instead, and Arc then emails them a request to sign the accepted proposal. When the link shares a reviewed proposal edition, the buyer can also record a question or next-action suggestion for your team without changing that edition. Acceptance on its own is a recorded response, not a signature.
What kind of electronic signature does Arc support?
Arc includes native simple electronic signature: a frozen PDF snapshot, named signers on tokenized links, typed-name adoption, and a sealed PDF with an audit certificate. It is not a qualified or certificate-based digital signature.
Can my team connect a CRM itself?
Arc can push the stage, close date, and amount of a proposal to a linked Salesforce opportunity, HubSpot deal, or Pipedrive deal once Gixo has configured a connection for your organization on its servers. Your team cannot connect a CRM itself, so Arc does not provide self-serve automated CRM sync. Your team can add outgoing webhooks from the proposal workspace, which send signed proposal events to Zapier, Make, or your own endpoint.
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