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

An AI-assisted analysis of public evidence — not a hands-on test.

Every score, rationale and verdict on this page is AI-generated. Every claim cites the source it was read from. Nothing here is a human star review — and no score can be bought. How scores are made →

Method and versions

The Legal Counsel v1.0 · The HR Operations Lead v1.0 · The Revenue Operations Lead v1.0 · The Integration Engineer v1.0 · The Data Protection Officer v1.0 · The Skeptic v1.0 · rubric v1 · evaluated 15 Oct 2026

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Markdown

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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 Legal Counsel

Weighted verdict

Decides which contracts may be signed electronically and at which level. Wants SES, AdES and QES named per plan and country, the qualified trust service provider linked to the EU Trust List, and an audit trail with timestamps that still validates when the contract is disputed in eight years.

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

Scored by The Legal Counsel

Panel median The Legal Counsel 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 Legal Counsel
eIDAS levels & trust services	2 of 5	2.5 of 5
Signer identification	2.5 of 5	2.5 of 5
Signing workflow & signer experience	3.5 of 5	3.5 of 5
Evidence, validation & retention	2.5 of 5	2 of 5
Integrations & API	3.5 of 5	3.5 of 5
European sovereignty	2.5 of 5	2 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.

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The Legal Counsel

All three eIDAS levels are labelled with their legal effect — the simple signature as having no evidential value, the advanced for contracts without formal requirements, the qualified as fully equivalent to a handwritten signature — and qualified signing is tied to the User+ plan, with the Austrian mobile phone signature (ID Austria) named as the qualified creation device. But qualified signatures are stated to be issued 'über einen Partner von sproof', and we found no public information naming that trust service provider, linking it to the EU Trust List, covering ZertES, qualified seals, or which level is available in which country beyond Austria. I will not send Germany-critical contracts on an unnamed trust service provider. 6 5 7 1 2

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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.

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The Legal Counsel

The one-time identification for qualified signatures is documented method by method — an agent-guided video call of roughly five minutes with photo ID, the mobile phone registered as second factor — the eID Hub advertises signing with more than 25 national eIDs plus EUDI wallet readiness, and advanced signatures identify the signer via email address. We found no public information naming who performs the identification, the countries each method covers, or the retention and deletion of the ID data afterwards. Before relying on this in a dispute I would want the identification provider and its subprocessor status on the record. 7 8 2 1

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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.

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The Legal Counsel

The workflow is genuinely built out: signing order simultaneous, in groups or an individual sequence with automatic invitation of the next group, existing PDF form fields editable or newly created, batch signature, mail merge, reminders and chat, out-of-office deputies, role management, and on-site signing on higher plans. Web forms with links or QR codes for mass signature collection and a barrier-free user interface are stated. We found no public information on conditional fields, signer languages, or a published accessibility conformance statement. 11 2 14 10

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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.

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The Legal Counsel

The audit protocol documents who viewed, approved and signed together with the verification method used, is presented as court-admissible primary evidence, signatures are applied in PAdES, and a validation service traces the certificate chain against revocation lists and the EU Trust List. But we found no public information on qualified timestamps, long-term validation such as PAdES-LTV, whether the trail is embedded in the signed PDF, or any retention period — the only statement is that no permanent storage or further processing takes place after completion. For a contract disputed in eight years, nothing published tells me the evidence still validates. 13 12 5

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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.

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The Legal Counsel

A documented REST API covers signatures and identification workflows, qualified and advanced signatures are embeddable as button, widget or iFrame into the customer's DMS, a free development license via API token is offered, and SAP, Salesforce, Microsoft 365 and Microsoft Dynamics are named alongside Outlook sync, Power Automate, Zapier and Make. General API access is reserved for the enterprise plan on the pricing page. We found no public information on webhooks, rate limits, API versioning or SDKs. 14 2 1

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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.

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The Legal Counsel

The vendor's pages state one hundred percent development and hosting in Europe, hosting in sproof's own ISO 27001 certified data centres, and independence from US providers. But the captured pages leave the contracting entity's details, ownership, data residency and subprocessor exposure unconfirmed, the partner issuing qualified signatures is unnamed, and we found no public information on a subprocessor list or the scope of the certifications. European by the vendor's own claim, not yet European by independent evidence. 1 5 1

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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.

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The Legal Counsel

The pricing page publishes volume tiers — '100 / Jahr' on the private plan, '1200 / Jahr' on business, 'Individuell' for enterprise — and private use is always free. But we found no public information on the monetary price of the paid plans, the cost of the User+ upgrade that qualified signatures require, the video identification fee, or API pricing. The cost of a qualified signature cannot be computed from what is published. 2 7 5

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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.

Legal entity	Not determined ⚠ unverified	—	uncited Report an error
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

Evidence ages. The oldest capture behind this page is from 1 Oct 2026. Vendors change pricing and policies without notice; every fact reflects its source as of the capture date shown in the registry.
Weak sourcing — Data residency, Subprocessors, Legal entity. Not confirmed on the vendor’s own pages as captured.
AI can misread a source. Extraction and judgement are automated; a citation guarantees traceability, not infallibility. If something here is wrong, say so — no account needed, every report is decided within 5 business days, and accepted corrections are published.

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.

9 compliance facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material. Know more? Tell us
9 subprocessors facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material. Know more? Tell us
3 data facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material. Know more? Tell us
3 product facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material. Know more? Tell us
1 hosting fact could not be confirmed on the vendor’s page as captured and was left out of this page and of the panel’s material. Know more? Tell us
1 legal fact could not be confirmed on the vendor’s page as captured and was left out of this page and of the panel’s material. Know more? Tell us
1 pricing fact could not be confirmed on the vendor’s page as captured and was left out of this page and of the panel’s material. Know more? Tell us
3 sovereignty dimensions could not be confirmed on the vendor’s own pages and are shown as unknown. Know more? Tell us
6 of the readings below were written against an earlier fact sheet — a fact has been corrected, added or pulled since. Until the panel next runs on this product you are reading the older judgement. Know more? Tell us

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Sources (14)

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

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