QuickSigner

E-Signature, Document Management

TL;DR

QuickSigner is a London-based, budget-friendly e-signature platform that collects Adobe-certified PAdES signatures with signing-order control, custom fields, templates, bulk sending, and full audit trails — GDPR and ISO 27001 compliant at a fraction of DocuSign pricing.

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Key Facts

VendorQuickSigner
Best fit
SMBMid-Market

Free version: QuickSigner has a free plan (5 documents/month) and a 14-day free trial. Paid plans start at $5/user/month.

Pricing

Starting at $5/month

Free TierFree TrialSaaS

Free

$0
Monthly
SaaS
  • 5 documents/month
  • 3 signers per request
  • 1 document per request
  • 5 MB file size
Most Popular

Business

$5
Monthly
SaaS
  • Per user
  • Unlimited documents
  • 10 signers & 10 templates
  • Signing order & reminders

Professional

$15
Monthly
SaaS
  • 50 signers per request
  • Bulk send & teams
  • OTP phone verification
  • eSign API access

License Tier 1

$39
One-time
SaaS
  • Lifetime access
  • 100 sign requests/month
  • 2 users
  • 10 templates
  • 60-day money-back guarantee

License Tier 3

$199
One-time
SaaS
  • Everything in lower tiers
  • Unlimited sign requests
  • 20 users
  • API access & 500 API credits

Additional Pricing Information

QuickSigner pricing: Free, Business $5/user/mo, Professional $15/user/mo. AppSumo lifetime deal was $39/$99/$199 across 3 tiers — currently SOLD OUT. eSign API credits beyond the free allotment cost ~$0.30/doc.

Details

What is QuickSigner?

QuickSigner is a bootstrapped e-signature platform founded April 2023 by Adrian Ionescu in London, built after struggling to find an affordable, user-friendly alternative to enterprise e-sign tools while digitizing document workflows. It runs entirely in the browser, accepts any PDF, and uses Adobe-certified PAdES digital signatures that are legally recognized in the US, UK, and EU, with ISO/IEC 27001:2022 and GDPR compliance. Features include multiple signers with custom signing order, custom fields (signatures, stamps, checkboxes, text, attachments), templates, bulk sending, real-time status tracking, and downloadable audit trails. It has no TrustRadius listing and a 4.29/5 AppSumo score across 17 reviews. The AppSumo lifetime deal ($39–$199) is currently sold out, and paid plans start at $5/user/month.

Key Features

  • *Adobe-Certified Signatures** — PAdES digital signatures legally recognized in the US, UK, and EU
  • *Multiple Signers** — Custom signing order and sequential signing for complex workflows
  • *Custom Fields** — Signatures, stamps, checkboxes, text, and file attachments on any PDF
  • *Templates** — Reusable document flows for frequently sent agreements
  • *Bulk Sending** — Send documents to many signers at once on higher tiers
  • *Real-Time Tracking** — See who has signed and who hasn’t, and where bottlenecks are
  • *Audit Trails** — Downloadable records with signer metadata and timestamps
  • *Teams & Permissions** — Multiple users with role management
  • *eSign API** — Integrate signing into apps and workflows at ~$0.30/document
  • *Security** — ISO/IEC 27001:2022 and GDPR compliant, data stored in the EU

Who is it for?

  • Small and medium businesses that send contracts, NDAs, and proposals regularly
  • Freelancers and consultants who want unlimited e-signatures without DocuSign pricing
  • Legal, HR, real estate, and sales teams that value real compliance (PAdES, ISO 27001, GDPR)
  • Teams that need multiple signers with a defined signing order
  • Budget-conscious buyers who don’t need enterprise features like white-labeling or SMS signing

Who is it NOT for?

  • Developers who plan to automate heavily — the API documentation is reportedly a nightmare
  • Enterprises needing complex workflows, deep integrations, or enterprise SLAs
  • Teams where signer email deliverability is mission-critical and can’t tolerate occasional failures
  • Anyone who needs white-labeling, SMS signing, or bulk variable fields today (still on the roadmap)
  • Users who want native desktop or mobile apps

The Bottom Line

QuickSigner is one of the stronger budget e-signature options on AppSumo — genuinely rare compliance credentials (Adobe AATL-certified PAdES, ISO 27001, GDPR), a clean no-learning-curve interface, and reviewers who swapped DocuSign for it. The $39 lifetime entry was excellent value and it’s now sold out. The two real caveats are the rough API documentation (skip it if you need automation) and occasional email delivery issues. For simple, legally solid contract signing at a small scale, this is a good one to circle back to if it returns.

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