BoldSign

BoldSign

Syncfusion
BoldSign ProofSign

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BoldSign:

About

BoldSign is Syncfusion's electronic signature platform and API for sending, signing, and tracking legally binding documents. Unlimited signature requests start at $15 per user per month, billed annually, with no envelope caps or overage charges. Upload PDF or Word files, add signature and form fields, set the signing order, and send. Signers need no account or download. Reusable templates, automatic reminders, and live status tracking keep documents moving. Completed documents include a tamper-evident audit trail with signer details and timestamps, designed to support legal enforceability under ESIGN and eIDAS. BoldSign supports SOC 2 Type II, eIDAS, GDPR, PCI DSS, the ESIGN Act, HIPAA, qualified electronic signatures, and data residency in the US, EU, Canada, and Australia. Developers can embed sending and signing directly in their applications. The REST API supports templates, text tags, custom branding, webhooks, SDKs, and a free sandbox.
ProofSign:

About

ProofSign is an electronic-signature and document-verification platform for individuals, professionals, teams and organizations signing finished PDFs. Users upload documents, invite signers and approvers, and run single- or multi-party workflows. Participants verify email access with a one-time passcode. ProofSign records signing intent, participant actions and timestamps in an audit trail. Completed PDFs include a SHA-256 fingerprint and evidence recipients can check through a public verifier without an account. The service supports agreements and finalized documents that need an auditable signing record and a way to detect later file changes. Its free plan allows single-party signing and verification for up to 10 documents monthly under fair use. Users can earn credits through onboarding and signing milestones. The Pro plan includes a verification API.
BoldSign:

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Supported
iPad Supported
Android Supported
Chromebook Not Supported
ProofSign:

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported
BoldSign:

Audience

Businesses, developers, HR teams, sales teams, legal operations teams, and SaaS companies that need secure electronic signatures, document tracking, or embedded signing workflows.
ProofSign:

Audience

Small and medium-sized businesses, freelancers, consultants, professional services firms, legal teams and developers who need straightforward electronic signing, multi-party agreement workflows, audit trails and independently verifiable document evidence.
BoldSign:

Support

Phone Support Supported
24/7 Live Support Not Supported
Online Supported
ProofSign:

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported
BoldSign:

API

Offers API Supported
ProofSign:

API

Offers API Supported
BoldSign:

Screenshots and Videos

ProofSign:

Screenshots and Videos

BoldSign:

Pricing

$5 per user per month
Offers a 30-day free trial with no credit card required. Essential is free for 25 envelopes per month. Growth is $5 per user per month (billed annually). Business is $15 per user per month (billed annually) with unlimited envelopes. Premium is $99 per month (billed annually) for unlimited users with 250 envelopes per month. Enterprise API starts at $30 per month including 40 envelopes, with additional envelopes at $0.75 each.
Free Version Supported
Free Trial Supported
ProofSign:

Pricing

£0/month
The Free plan costs £0 and includes single-party signing and verification for up to 10 documents per month under fair use. Multi-party workflows and higher-volume use require credits. The Standard plan costs £6/month and includes 250 credits per month. The Pro plan costs £18/month and includes 900 credits per month plus verification API access. Annual billing is 20% off. One-time credit packs cost £10 for 100 credits, £25 for 300 credits or £75 for 1,000 credits; they do not expire and do not include subscription features. Users can earn up to 225 additional credits through identity-verification and signing milestones.
Free Version Supported
Free Trial Not Supported
BoldSign:

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software
ProofSign:

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software
BoldSign:

Training

Documentation Supported
Webinars Supported
Live Online Supported
In Person Supported
ProofSign:

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported
BoldSign:

Company Information

Syncfusion
Founded: 2001
United States
www.boldsign.com
ProofSign:

Company Information

ProofSign
Founded: 2025
United Kingdom
www.proofsign.app/
BoldSign:

Alternatives

ProofSign:

Alternatives

Holosign

Holosign

5.0 out of 5 stars
BoldSign:
airSlate SignNow

airSlate SignNow

airSlate
4.5 out of 5 stars
ProofSign:
SahlSign

SahlSign

Vantage Technologies LLC
BoldSign:
ProofSign:
BoldSign:
Sign.Plus

Sign.Plus

Alohi
5.0 out of 5 stars
ProofSign:
PQC Imza

PQC Imza

ZincirX
BoldSign:
QuickSigner

QuickSigner

5.0 out of 5 stars
ProofSign:
Nevtan Sign

Nevtan Sign

NevTan
BoldSign:

Categories

Digital Signature Supported
eSignature APIs Supported
ProofSign:

Categories

Digital Signature Supported
BoldSign:

Integrations

Beam AI Supported
Dropbox Supported
Ferrylend Supported
Google Drive Supported
H2R.ai Supported
HubSpot CRM Supported
Management OS Supported
Microsoft 365 Supported
Microsoft OneDrive Supported
Microsoft Power Automate Supported
Motileo Supported
Nango Supported
Nextal Supported
Quickwork Supported
Spring.new Supported
Vessel Supported
WhatsApp Supported
Workers by Delos Supported
Xero Supported
Zapier Supported
ProofSign:

Integrations

Beam AI Not Supported
Dropbox Not Supported
Ferrylend Not Supported
Google Drive Not Supported
H2R.ai Not Supported
HubSpot CRM Not Supported
Management OS Not Supported
Microsoft 365 Not Supported
Microsoft OneDrive Not Supported
Microsoft Power Automate Not Supported
Motileo Not Supported
Nango Not Supported
Nextal Not Supported
Quickwork Not Supported
Spring.new Not Supported
Vessel Not Supported
WhatsApp Not Supported
Workers by Delos Not Supported
Xero Not Supported
Zapier Not Supported
BoldSign:
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ProofSign:
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