Prospero vs SignWell
We give Prospero a 2.4 GPA and SignWell a 2.6, out of 4.0. SignWell grades higher on features. They get the same grade on value for money, the free plan, ease of use and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
Prospero
Proposal software with templates, tracking and built-in e-signatures
SignWell
E-signatures priced by sender, with unlimited documents on paid plans
How we grade them
| 2.4GPAProsperoFair | 2.6GPASignWellGood | |
|---|---|---|
| Value for money | B$36 a month for three, at $12 a head billed yearly ($19 monthly), for unlimited proposals on its one plan. Against its own rivals that's cheap: Better Proposals Premium is $21 a head, and PandaDoc's pricing tables need Business at $49. | B$30 a month for up to three senders on Business, billed yearly ($36 monthly). That's $10 a head for unlimited documents and templates, inside this category's cheapest quarter. A fourth sender adds $12 a month. |
| Free plan and trial | CNo free plan, but a 14-day free trial that needs no card, with the full set of proposal features. | CThe free plan is one sender, one template and 3 documents a month, with the API and the audit trail. Handy for the odd form, nowhere near 20 a month. There's no trial of the paid plans on record. |
| Features | CTemplates, variables, an interactive pricing module, AI writing, open and read tracking, reminders, expiry dates and passwords. It does the proposal job fully, but that's a smaller job than general signing: its feature list names two signers per proposal. | BUnlimited documents, template links, bulk send, branding, conditional fields, data validation, signer attachments, in-person signing and 50 SMS credits a month on Business. Nothing in the listing shows a gap in the core signing job. |
| Ease of use | CNo store rating on record. It's a web editor where the work is building the proposal itself, so expect some setting up, though the 100+ templates give you a head start. | CNo store rating on record, and no phone app. It's a web app where you set up your templates and fields once, which is quick enough, but there's still setting up to do. |
| Platforms and integrations | BWeb only, with Stripe, QuickBooks, FreshBooks, Xero, Slack and Monday.com, and more through Zapier and Make. No phone or desktop app. | BWeb only, with Close, QuickBooks Online, Xero and thousands more through Zapier, plus an API with 25 free documents a month on every plan, webhooks and an MCP server. |
| Best for | cheap proposals for freelancers and small agencies | small teams that want unlimited documents cheaply |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Prospero and SignWell. How we grade
Price against what you get
Prospero starts at $12 a month for each person and scores 2.3 out of 4 on features, ease of use and platforms. SignWell starts at $10 a month for each person and scores 2.7.
SignWell scores higher and starts $2 a month lower. Of the other e-signature and proposal tools on the chart, 6 score higher than Prospero for less, and 1 scores higher than SignWell for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- Prospero starts at $12 per user / month, billed annually ($19 billed monthly). SignWell starts at $10 per sender / month, billed yearly ($12 billed monthly).
- SignWell has a free plan. Prospero does not, though it has a free trial.
At a glance
| Prospero | SignWell | |
|---|---|---|
| Pricing | Free trial | Free plan |
| Starts at | $12 per user / month, billed annually ($19 billed monthly) | $10 per sender / month, billed yearly ($12 billed monthly) |
| Free plan | None | One sender, one template and 3 documents a month, with the API, audit trail and tamper-proof documents. |
| Free trial | 14-day free trial, no credit card required | None listed |
| Web | ||
| Made by | Prospero | SignWell |
| Price read from | goprospero.com | signwell.com |
| Checked | Oct 17, 2026 | Oct 17, 2026 |
Who each one suits
Prospero
- Freelancers and small agencies sending design-led proposals
- Teams that want to know when a client has read a proposal
- Businesses that invoice through QuickBooks, FreshBooks or Xero
SignWell
- Small businesses that send many agreements and do not want envelope limits
- Developers who want e-signing in their own product without a separate plan
- Anyone who signs fewer than 3 documents a month, for free
Worth knowing
Prospero
- It is built for proposals rather than general contract signing; its feature list names two signers per proposal.
- Paying monthly costs $19 per user against $12 billed annually.
- Support is by chat and email, Monday to Friday, 9:00 to 17:00 GMT+2.
- Teams of 25 or more need a custom quote.
SignWell
- Light keeps you to 5 templates per sender and leaves out branding, conditional fields and in-person signing, which start at Business.
- Extra senders cost $12 a month each on Business billed yearly ($15 monthly), and $10 ($12) on Light.
- API documents beyond 25 a month are charged per document.
Key features
Prospero
- Proposal editor and templates
- Build proposals from more than 100 templates with variables, layouts, cover pages, file attachments and an interactive pricing module.
- Proposal analytics
- See who viewed a proposal, when, for how long and on what device, with open and click tracking on emails and reminders.
- E-signatures
- Clients sign on desktop or mobile by typing, drawing or uploading a signature, with the timestamp, IP address and device recorded.
- AI writing assistant
- Generate new text or images, enhance writing and change the tone or length of a section while editing.
- Emails and reminders
- Send proposals by email with automatic reminders, set expiry dates and protect a proposal with a password.
- Integrations
- Connect Stripe, QuickBooks, FreshBooks, Xero, Slack and Monday.com, or link other apps through Zapier and Make.
SignWell
- Unlimited documents
- Paid plans charge by sender, not by envelope or signer, so there is no cap on the number of signing requests.
- Templates, links and bulk send
- Save documents as templates, share a template as a public link, and bulk send one document to many recipients from Light up.
- Smart fields
- Business adds conditional field rules, group checkbox rules, data validation and requests for attachments from signers.
- API on every plan
- Each plan includes 25 API documents a month, then charges per document, with embedded signing, webhooks, SDKs and an MCP server.
- Audit trail and compliance
- Tamper-evident documents and audit trails on all plans; paid plans add a SOC 2 Type II report and HIPAA support.
- Integrations
- Native integrations with Close, QuickBooks Online and Xero, plus thousands of other apps through Zapier, and DocuSign import.
Plans
Prospero
Prospero$12
per user / month, billed annually ($19 billed monthly)
Unlimited proposals, 100+ templates, AI assistant, analytics, reminders, e-signatures and integrations; teams add shared content and roles.
25 or more membersCustom
Teams of 25 or more people are priced by quote through the sales team.
SignWell
Free$0
One sender, one template and 3 documents a month, with the API, audit trail and tamper-proof documents.
Light$10
per sender / month, billed yearly ($12 billed monthly)
Unlimited documents, 5 templates per sender, template links, bulk send, and SOC 2 and HIPAA compliance.
Business$30
per month for up to 3 senders, billed yearly ($36 monthly)
Unlimited templates, branding, conditional fields, data validation, attachments, in-person signing, 50 SMS credits a month.
EnterpriseCustom
Sold through sales for teams of 50 or more, high volumes or extra compliance, with onboarding and API setup help.
Ways to pay less
Prospero
- Annual discount
Save 37% with annual billing
Prospero's pricing page marks annual billing as a 37% saving: $12 per member a month billed annually against $19 monthly.
SignWell
- Annual discount
Save 20% with yearly billing
SignWell's pricing page gives a 20% discount for paying yearly: Light is $10 a month billed yearly against $12 monthly.
- Startups
Up to $500 in credits for startups
Technology startups at Series A or below with under $5M raised, not already paying, can apply for up to $500 in SignWell credits.
