whats-best.ai
Search Sign in

E-Signature

sproof sign

EU-Made Report an error

Panel rating · 6 judges · How to read the stars

Category median

Sovereignty: not determined

0–5 in half steps. 5 means the rubric's top anchor is met on the evidence.

by sproof GmbH · www.sproof.com

Report an error on this page Is this your product? →

Link to this page

sproof sign: AI-assisted analysis on whats-best.ai sproof sign: AI-assisted analysis on whats-best.ai (dark)

Add ?theme=dark to the image address for dark backgrounds. The badge shows the category and the month of the latest evaluation, and EU-Made where that is the product’s provenance. It never shows a score.

sproof sign at a glance

Vendor
sproof GmbH
Headquarters
Not stated on the vendor’s pages as of 13 Oct 2026
Data hosting
Default not stated; pages mention Europe source, captured 13 Oct 2026
Free plan
Yes, per the vendor’s own page source, captured 13 Oct 2026
Panel verdict
The AI panel rates sproof sign 2.5/5, the mean of 6 judges. sproof sign, from sproof GmbH of Salzburg, Austria, is strongest at signing workflow, scored a uniform 7 — the highest mark awarded anywhere on this product — for templates with editable fields, grouped or sequential signing order, batch signing and web forms with QR codes. how scores are made
As of
Vendor pages captured 1 Oct 2026 to 13 Oct 2026; evaluated by the panel 15 Oct 2026. all sources

sproof sign alternatives, European ones first →

Read this page as one judge. Each weighs the same scores by what they care about.

The Skeptic

Weighted verdict

Knows "legally binding" usually means a simple signature. Reads for the level the default plan actually signs at, the QTSP the provider does not operate itself, the per-QES and ident fees on top of the plan, the envelope limit, and "eIDAS-compliant" from a provider that names no trust service at all.

Same scores as the panel view — this lens weights them the way this judge cares.

Scored by The Skeptic

Panel median The Skeptic This judge’s scores over the panel median. Each label opens its reasoning below.
Scores per criterion, in stars out of 5
Criterion Panel median The Skeptic
eIDAS levels & trust services 2 of 5 2 of 5
Signer identification 2.5 of 5 2 of 5
Signing workflow & signer experience 3.5 of 5 3.5 of 5
Evidence, validation & retention 2.5 of 5 2.5 of 5
Integrations & API 3.5 of 5 3 of 5
European sovereignty 2.5 of 5 1.5 of 5
Pricing transparency 1.5 of 5 1.5 of 5

eIDAS levels & trust services

How this is scored

Which signature levels the platform offers — simple, advanced, qualified, and qualified seals — through which qualified trust service provider on the EU Trust List, for which countries and legal regimes (eIDAS, ZertES), and on which plans.

0 — No signature level named; the platform calls its signature "legally binding" without saying which kind it is.

3 — Simple signatures by default with "advanced" or "qualified" mentioned as available, but no trust service provider named and no statement on which plan or country offers which level.

5 — SES, AdES and QES offered and labelled in the product, the qualified trust service provider named, and which documents need which level explained for at least Germany or the EU.

8 — Every level documented with the plans and countries it is available in, the QTSP's entry on the EU Trust List linked, QES under eIDAS (and ZertES where relevant) stated, qualified electronic seals for company documents, and the signature level printed in the signed document and audit trail.

10 — Levels are an explicit product decision: the provider is or contracts a named QTSP with its conformity assessment published, level selection per document type or template, remote QES without a separate account, EUDI wallet support stated with a date, and the legal effect per level documented for the main EU markets.

Report an error

The Skeptic

All three levels are labelled and explained, the standard plans issue the advanced signature, and qualified signing is gated behind a User+ purchase — but the qualified signature is issued "über einen Partner von sproof" and no trust service provider is ever named, no EU Trust List entry is linked, and we found no public information on qualified seals or ZertES. Every page repeats "eIDAS-compliant" without one concrete trust service behind it. 2 5 6 7 1

Report an error

Signer identification

How this is scored

How the signer is identified for each level: email and SMS codes, video ident, eID card (Online-Ausweis), bank ident or EUDI wallet — who performs it, in which countries it works, and what happens to the ID data afterwards.

0 — Email link only; no statement on how signers are authenticated.

3 — Email plus SMS or access code, with "ID verification" mentioned as an add-on but no methods, provider or countries named.

5 — Identification methods for AdES and QES listed by name (for example video ident, eID, bank ident), the identification provider named, and the countries or ID documents they accept stated.

8 — Methods documented per level and country, automated and agent-based ident distinguished, reuse of an identification for later signatures explained, retention and deletion of ID data stated, and the ident provider listed as subprocessor.

10 — Identification is transparent end to end: every method with its countries, assurance level and failure rate or completion guidance, EUDI wallet and national eID supported, ID data minimisation and retention committed, and the signer-facing privacy notice published.

Report an error

The Skeptic

Methods are named — a roughly five-minute agent-guided video ident with photo ID and mobile second factor for QES, identification by email address for the advanced level, an eID Hub with more than 25 national eIDs and an EUDI wallet claim — but who performs the identification, in which countries it works, and what happens to the ID data afterwards are not stated. The captured privacy policy explicitly covers only the website, not the signing application, so retention and deletion of identification data are unverifiable from public pages. 2 3 6 8 9

Report an error

Signing workflow & signer experience

How this is scored

Getting a document out and back signed: templates and form fields, signing order and roles, bulk sending, reminders and delegation, signing without an account or app, mobile signing, and accessibility for signers.

0 — Single-recipient signing of an uploaded PDF; no templates, order or reminders.

3 — Multiple signers and basic templates, but no signing order, no bulk send, and signers must create an account.

5 — Templates with field placement, sequential and parallel signing order, automatic reminders and expiry, signing without an account on mobile, and a status overview for the sender.

8 — Roles and conditional fields, bulk sending, delegation and substitute signers, team and approval workflows, branded signer experience, signer languages listed, and signer accessibility addressed.

10 — The workflow is complete and documented: web forms and self-service signing links, mixed signature levels within one process, in-person and remote signing, a published accessibility conformance statement, and team administration with shared templates and audit of sender actions.

Report an error

The Skeptic

Templates with editable form fields, sequential, parallel and grouped signing order with automatic next-group invitation, reminders, status tracking, batch signing, mail merge, out-of-office deputies, teams with roles, branded signing, on-site signing and web forms with links or QR codes are all evidenced. We found no public information on conditional fields, signer languages, mobile signing, expiry, or a published accessibility conformance statement beyond a "barrier-free" claim. 1 2 10 11 14

Report an error

Evidence, validation & retention

How this is scored

What proves a signature years later: the audit trail and certificate of completion, qualified timestamps, long-term validation (PAdES-LTV), validation reports, and how long signed documents and evidence are kept — and whether they can leave the platform.

0 — A signed PDF and nothing else; no audit trail, no statement on storage or deletion.

3 — An audit trail or completion certificate exists, but its contents, the timestamp source and the retention period are unstated.

5 — Audit trail with signer events, IP addresses and authentication method embedded in or attached to the signed PDF, timestamps applied, documents downloadable, and the retention period stated.

8 — PAdES signatures with long-term validation, qualified timestamps from a named provider, a validation tool or report, configurable retention and automatic deletion, and bulk export of documents with their evidence.

10 — Evidence outlives the subscription: LTV and archive timestamps documented, validation verifiable with independent tools such as the EU DSS validator, export to a DMS or archive with evidence intact, and post-termination access and deletion committed in the terms.

Report an error

The Skeptic

The audit trail is documented as court-admissible, recording who viewed, approved and signed, when, and with which verification method, and a validation tool checks the certificate chain to the root CA, CRL/OCSP revocation lists and the EU Trust List. But no timestamp source is named, long-term validation is not mentioned for the PAdES signatures, the only retention statement is "no permanent storage after completion" without a period, and export of documents with evidence or post-termination access is not addressed. 5 12 13

Report an error

Integrations & API

How this is scored

Signing from inside the systems where contracts are made: a documented API with webhooks and a sandbox, embedded signing, and connectors for Microsoft 365, CRM, HR, DMS and ERP systems.

0 — No API and no integrations; everything happens in the vendor's web app.

3 — A few named integrations or a Zapier connector, and an API mentioned without public documentation.

5 — A documented REST API with webhooks and a sandbox, plus connectors for Microsoft 365 or Google Workspace and at least one CRM or HR system named.

8 — Embedded signing in the customer's own application, API access to every signature level, versioned API with rate limits published, SDKs, and connectors for named DMS, ERP or HR systems with their scope.

10 — Integration is a product: white-label and embedded flows documented, API parity with the web app, a status page with incident history, deprecation policy, and a marketplace of integrations with stated maintainers.

Report an error

The Skeptic

A documented REST API with a free development license, embedded signing as button, widget or iFrame carrying both qualified and advanced levels via API, and named connectors for SAP, Salesforce, Microsoft 365 and Microsoft Dynamics plus Zapier, Make and Power Automate are all on the pages. However, the pricing page shows general API access on the Enterprise plan only, and we found no public information on webhooks, rate limits, API versioning, SDKs or a status page. 1 2 14

Report an error

European sovereignty

How this is scored

Who the contracting entity, the trust service provider and their owners are, where documents, audit trails and ID data are stored and processed, and who the subprocessors are. Independently sourced by the sovereignty pipeline.

0 — Non-EU contracting entity, no statement on where documents and signer data are stored, and subprocessors unnamed.

3 — An EU entity contracts, but documents or signer data are processed outside the EU by default without an explained safeguard, or the subprocessor list is absent.

5 — EU contracting entity and EU data storage stated, with a DPA, but the hosting, identification or trust service chain is non-EU-controlled without a stated safeguard.

8 — EU entity, documents, audit trails and ID data stored in named EU data centres, an EU qualified trust service provider, subprocessor list with locations published, and certifications (ISO 27001, ETSI conformity) published.

10 — Sovereign end to end and evidenced: European ownership, EU entity and EU QTSP, every processing location and subprocessor European, customer-selectable data residency, and certifications with their scope published.

Report an error

The Skeptic

"100% developed and hosted in Europe" in ISO 27001 certified data centres, "unabhängig von US-Providern" and hosting in a data centre of sproof are stated, and the site claims exclusively European partners — but only for operating the website. The contracting entity's jurisdiction is not confirmed on the captured pages, and we found no public information on ownership, named data centre locations, subprocessors, or the identity of the partner that issues the qualified signatures. 1 5 13 1

Report an error

Pricing transparency

How this is scored

Whether a buyer can compute the cost of their signing volume from public pages alone — plan prices, envelope or document limits, the per-signature price of AdES and QES, identification fees, API pricing and overage.

0 — No public prices at all; every plan is a sales conversation.

3 — Plan prices published, but envelope limits, QES and identification fees are unstated — the cost of a qualified signature is unknowable.

5 — Plans with envelope or document limits priced, but at least one commonly incurred cost (per-QES fee, video ident, API access, overage) is missing or "on request".

8 — Every plan and limit priced publicly, AdES and QES priced per signature, identification fees and overage stated, API pricing published, and contract term and notice period given.

10 — Complete cost computability: the cost of a given monthly volume per signature level derivable from public pages, volume tiers published, and every add-on and price-change term on a public page.

Report an error

The Skeptic

Plan tiers are published with annual signature counts (private "100 / Jahr", business "1200 / Jahr", enterprise "Individuell", private use free), so the advanced-signature volume is computable. But the price of the User+ upgrade that unlocks qualified signing, the identification fee, API pricing, overage and the premium support surcharge are all unstated, so the cost of a qualified signature is not computable from public pages alone. 2 5 7

Report an error

European sovereignty — proven facts

0 of 4 dimensions proven

Built only from facts shown on the vendor's own pages. A dimension we could not prove is left open, not scored as zero.

Ownership Not determined — uncited Report an error
Data residency Not determined ⚠ unverified — uncited Report an error
Subprocessors Not determined ⚠ unverified — uncited Report an error

Questions about sproof sign

Is sproof sign European?

Yes. whats-best.ai classifies sproof sign as EU-Made.

Where does sproof sign store data?

The default storage location for customer data is not stated on the vendor’s pages as of 13 Oct 2026. The vendor’s pages mention Europe as hosting location, per the vendor’s page captured 13 Oct 2026.

Does sproof sign have a free plan?

Yes. sproof sign has a free plan, per the vendor’s page captured 13 Oct 2026.

What are the best alternatives to sproof sign?

As of 15 Oct 2026, the panel rates Penneo (2.5/5), Youtrust (Yousign) (2.5/5) and MOXIS (2.5/5) highest among the other 14 E-Signature products evaluated. Ratings that look equal are rounded to half stars; the order uses the unrounded rating, then the name. The highest-rated European alternative is Penneo (EU-Made). Ratings are the AI panel’s opinion, formed from public evidence: how scores are made. The full list, with European products first: sproof sign alternatives.

Where this could be wrong

What we left out

A claim that does not survive our checks costs us the claim, not the page. This is what was taken off this one.

Do you know more about sproof sign? Tell us Report an error on this page

Sources (14)

The pages every claim on this page was read from — each one checked, dated, and kept verifiable.

  1. 1 Vendor homepage www.sproof.com Checked 13 Oct 2026 +1 earlier capture: 1 Oct 2026 Details →
  2. 2 Pricing page www.sproof.com Checked 13 Oct 2026 Details →
  3. 3 Privacy policy www.sproof.com Checked 13 Oct 2026 Details →
  4. 4 Legal notice www.sproof.com Checked 13 Oct 2026 Details →
  5. 5 Terms of service www.sproof.com Checked 13 Oct 2026 Details →
  6. 6 EIDAS levels & trust services — found from sitemap www.sproof.com Checked 13 Oct 2026 Details →
  7. 7 EIDAS levels & trust services — found from sitemap www.sproof.com Checked 13 Oct 2026 Details →
  8. 8 Signer identification — found from sitemap www.sproof.com Checked 13 Oct 2026 Details →
  9. 9 Signer identification — found from sitemap www.sproof.com Checked 13 Oct 2026 Details →
  10. 10 Signing workflow & signer experience — found from sitemap www.sproof.com Checked 13 Oct 2026 Details →
  11. 11 Signing workflow & signer experience — found from sitemap www.sproof.com Checked 13 Oct 2026 +1 earlier capture: 1 Oct 2026 Details →
  12. 12 Evidence, validation & retention — found from sitemap www.sproof.com Checked 13 Oct 2026 Details →
  13. 13 Evidence, validation & retention — found from sitemap www.sproof.com Checked 13 Oct 2026 Details →
  14. 14 Integrations & API — found from sitemap www.sproof.com Checked 13 Oct 2026 Details →