SigPen vs PandaDoc:
One Flat Rate, Not Per Seat.
PandaDoc charges for every user you add. SigPen is one flat monthly rate with unlimited documents, AI field detection, and a REST API, no matter how many people send.
The Price Reality
Flat rate, unlimited documents
- Unlimited documents
- No per-seat fees
- REST API & webhooks included
- AI field detection
- 14-day free trial
Per seat, billed annually
- Per-seat pricing (multiplies per user)
- Production API on Enterprise only
- Native CRM integrations
- Unlimited documents
- 14-day trial
Full Feature Comparison
| Feature | SigPen | PandaDoc |
|---|---|---|
| Pricing model | Flat per account | Per seat (per user) |
| Starting paid price | $9/month flat | $19/user/month |
| Unlimited-document plan | $29/month flat | $49/user/month (Business) |
| Cost for a 5-person team (unlimited plan) | $49/month total | $245/month ($49 x 5) |
| Free plan | 14-day full trial | Yes, 60 documents/year |
| Document limit (entry paid plan) | Unlimited (Professional) | 110 / year (Starter) |
| AI field detection | Automatic | Manual builder |
| REST API (production) | Professional plan ($29/mo) | Enterprise plan only |
| Webhooks | Professional plan | Enterprise plan |
| Embed / iframe signing | Professional plan | Enterprise / API |
| Native CRM integrations | Via REST API | Business plan ($49/user) |
| Reusable templates | Yes | Yes (5 max on Free) |
| Audit trail | Yes | Yes |
| ESIGN Act / UETA compliant | Yes | Yes |
| Mobile signing | Yes | Yes |
| No long-term contract | Cancel anytime | Annual billing for listed price |
Pricing and features based on PandaDoc's publicly listed plans. Last updated June 2026.
Why Teams Switch from PandaDoc to SigPen
No Per-Seat Tax
PandaDoc charges for every user on your team. Add five people and your bill is five times bigger. SigPen is one flat rate, with unlimited senders.
API Without the Enterprise Upsell
SigPen includes a REST API, webhooks, and embedded signing on the Professional plan. PandaDoc reserves production API access for Enterprise customers who book a sales call.
Same Legal Standing
Both platforms are ESIGN Act and UETA compliant. SigPen signatures carry the exact same legal weight as PandaDoc, with a full audit trail on every document.
Frequently Asked Questions
Is SigPen cheaper than PandaDoc?
For teams, significantly. PandaDoc bills per seat, from $19/user/month (Starter) to $49/user/month (Business), so the cost multiplies with every person you add. SigPen is one flat rate: $29/month for unlimited documents, no matter how many people send them. PandaDoc does offer a free plan, but it caps you at 60 documents a year with no integrations or API.
Does PandaDoc have a free plan?
Yes. PandaDoc's free eSign plan covers 60 documents per year with unlimited seats. It works for occasional signing, but it has no document editor, a 5-template limit, no custom branding, no CRM integrations, and no API. SigPen's paid plans start at $9/month and add unlimited documents, AI field detection, and REST API access from $29/month.
Does SigPen have an API like PandaDoc?
Yes, and on a much cheaper plan. SigPen includes a REST API, webhooks, and an embeddable signing widget on the Professional plan ($29/month). PandaDoc reserves production API access for Enterprise customers, which requires a call with their sales team.
Is SigPen legally equivalent to PandaDoc?
Yes. Both produce ESIGN Act and UETA-compliant electronic signatures. Every SigPen signature carries a full audit trail with timestamps, IP addresses, and signer consent, the same evidentiary standard PandaDoc provides.
Can SigPen replace PandaDoc?
It depends on what you use PandaDoc for. PandaDoc is built around sales proposals, CPQ, and native CRM workflows. If your main need is sending documents and collecting legally binding signatures quickly, without per-seat pricing, SigPen is a strong and far cheaper fit. If you rely on PandaDoc's proposal builder and deep CRM automation, compare both before switching.
What happens to my documents if I switch from PandaDoc?
Your signed documents and audit trails are always downloadable as PDFs from SigPen, with no lock-in. You can re-upload any existing PDF and use AI field detection to place signature, date, and text fields automatically.
Compare SigPen to other e-signature tools
Ready to Make the Switch?
14-day free trial. No credit card. Full Professional features from day one.
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