ContractStamp

ContractStamp

Exciton Research, LLC
PQC Imza

PQC Imza

ZincirX
ContractStamp PQC Imza

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ContractStamp:

About

ContractStamp is a fast, secure, and intuitive electronic signature platform designed to eliminate the friction of traditional document signing. Built to streamline workflows for teams and individuals alike, it allows users to upload PDFs, place signature fields, and collect legally binding signatures in minutes—entirely from the browser with no app downloads or credit cards required.
PQC Imza:

About

PQC Imza is a web-based electronic-signature service that applies ML-DSA-44 (NIST FIPS 204) post-quantum signatures to documents. Senders upload PDFs or prepare documents using templates and an AI-assisted builder, then invite signers and decide which completed signatures to accept. Signers use the PQC Wallet mobile app to verify identity with the NFC chip in an ID card or passport and sign on their phones. The resulting PDF lists signers on each page and includes a QR code for later verification; the document fingerprint and signature records are anchored on SciChain. Customers can buy per-document credits, non-expiring credit packs, or monthly and annual plans; invited signers sign at no charge. The service is designed for individuals and organizations collecting electronic signatures. In Türkiye, these signatures are not qualified secure electronic signatures under Law No. 5070.
ContractStamp:

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
PQC Imza:

Platforms Supported

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

Audience

Companies that need a digital signature platform
PQC Imza:

Audience

Businesses and individuals who send documents for signature
ContractStamp:

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported
PQC Imza:

Support

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

API

Offers API Not Supported
PQC Imza:

API

Offers API Not Supported
ContractStamp:

Screenshots and Videos

No images available
PQC Imza:

Screenshots and Videos

No images available
ContractStamp:

Pricing

No information available.
Free Version Supported
Free Trial Not Supported
PQC Imza:

Pricing

$9/month
Pay as you go: $2.50 per document. Monthly plans start at $9/month for 10 documents; Pro is $29/month for 40 documents and up to 5 people; Business is $99/month for 200 documents and up to 20 people. One-time credit packs cost $12 for 10, $26 for 25, or $45 for 50 credits; credits do not expire. Invited signers sign free.
Free Version Not Supported
Free Trial Not Supported
ContractStamp:

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
PQC Imza:

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
ContractStamp:

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported
PQC Imza:

Training

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

Company Information

Exciton Research, LLC
Founded: 2026
United States
contractstamp.com
PQC Imza:

Company Information

ZincirX
Founded: 2024
United States
pqc-imza.com/en
ContractStamp:

Alternatives

PQC Imza:

Alternatives

ContractStamp:
RocketSign

RocketSign

Rocket Lawyer
PQC Imza:
ContractStamp:
Wondershare Document Cloud

Wondershare Document Cloud

Wondershare Technology
PQC Imza:
QuickSigner

QuickSigner

5.0 out of 5 stars
ContractStamp:
SignOff

SignOff

Datawitness Online
PQC Imza:
ContractStamp:
BRy

BRy

BRy Tecnologia
PQC Imza:
BoldSign

BoldSign

Syncfusion
ContractStamp:

Categories

Digital Signature Supported
PQC Imza:

Categories

Digital Signature Supported
ContractStamp:

Integrations

Stripe Not Supported
PQC Imza:

Integrations

Stripe Supported
ContractStamp:
Claim ContractStamp and update features and information
Claim ContractStamp and update features and information
PQC Imza:
Claim PQC Imza and update features and information
Claim PQC Imza and update features and information