For people
- Reduces ambiguity.
- Makes an awkward conversation easier.
- Increases emotional safety.
- Promotes respect.
Closed beta across Europe
2YES · Con·Sent · Safe Digital Identity (SDI)
“This is not just about an app. It is about building the digital infrastructure that makes prevention, trust and protection workable.”
Coming soon to the App Store and Google Play across Europe.
Encrypted, sealed record
Never without two signatures
Mutual identification
Code or QR, each from their own phone
Clear reminder
Free, revocable, no obligation
Explicit yes
Each person confirms on their own screen
Encrypted record
Two signatures and a time seal
Revocable
Either person withdraws it with one gesture
2YES was born as a mobile app designed to make it easier to express consent clearly, voluntarily and consciously before a sexual relationship begins. From that base, the project grows into a broader vision: building the European infrastructure of digital trust for sensitive interactions — Safe Digital Identity (SDI).
The core value of the project is not recording an interaction, but helping to reduce ambiguity, making it easier to say no, and helping to avoid suffering, conflict or a potential crime before it happens. The app does not replace ongoing consent and offers no automatic legal protection.
A prior record does not remove responsibility if violence, intimidation, incapacity or revocation follow.
Personal relationships increasingly begin in digital environments, and there the safety of citizens is no longer a detail: it is a reputational vector for platforms and a growing social problem.
Three things fail at once today. There are no structured tools for preventive communication between citizens. Age verification is insufficient or easy to circumvent. And the solutions that exist force a choice between privacy and control, because they collect and store sensitive personal data.
The result is a system that acts after the harm. Formalising a prior signal does not replace real consent, but it can help to detect a lack of willingness, reduce ambiguity and avoid harm before it happens.
21,659
crimes against sexual freedom in Spain in 2025 — 59 a day, 2.3% more than the year before.
57.9%
of women using dating apps felt pressured to have sex.
Sources: Balance de Criminalidad, Spanish Ministry of the Interior · “Apps Sin Violencia Sexual” study (2023), Federación de Mujeres Jóvenes.
The window opens when three changes converge.
Digital platforms are central spaces for socialising, and their reputation already depends on the safety of citizens.
Since Spain’s Organic Law 10/2022, consent has been at the centre of crimes against sexual freedom, and prevention is gaining weight over after-the-fact reaction.
The DSA, the GDPR, eIDAS 2.0, the EU AI Act and Spain’s new rules on artificial intelligence and digital platforms raise the bar and push towards interoperable, privacy-first infrastructure.
2YES does not sell regulatory compliance: it is the technical infrastructure that regulation needs.
Protecting citizens in the digital environment cannot depend on regulation alone. The ecosystem needs technological infrastructure that makes that protection effective while guaranteeing both security and privacy.
Both people have the app and, entirely voluntarily, can start a process in which:
The two people identify each other inside the app, for example by scanning a code or accepting a request.
A short reminder of what consent is: that it is free, that it can be withdrawn at any time and that it obliges no one to anything.
Each person consciously expresses their agreement, with its scope described in clear, understandable language.
The app records that initial consent privately and encrypted, with custody and time sealing.
Either person can withdraw it.
Recorded consent is not valid “forever” and does not replace what happens afterwards: the relationship must remain consensual the whole time. The app does not decide, does not judge and does not automatically protect anyone. Its role is to enable clear communication and help both people be aware of what they are accepting at that moment.
A record of explicit, voluntary and revocable consent, with accounts verified by phone number and encrypted time sealing.
API/SDK infrastructure for third-party platforms, built on W3C verifiable credentials, DIDs, zero-knowledge proofs (ZKP) and eIDAS 2.0; positioned as a service and certification layer that complements — not competes with — Europe’s public infrastructure (e.g. the EUDI Wallet).
A survey conducted by Netquest in February 2026 on a sample of 1,202 people, in line with the UNE-ISO 20252:2019 standard on quality in market research, shows that:
58.9%
reasonable willingness (a clear yes, or depending on the circumstances)
74.5%
do not reject the proposal
25.5%
rejection, which confirms the sensitivity of the subject, not its unfeasibility
The relevant signal is not only the absolute figure, but that part of the market accepts introducing a prior layer of communication before a sexual relationship.
Today the 2YES beta verifies each person’s phone number. Safe Digital Identity is the identity layer we are building on top of that base: this section describes its design, not a feature that is already available.
Beneath consent, a layer of identity.
With it, any platform will be able to verify attributes of its users without accessing their personal data.
Official identity document and a live face check of the holder.
A cryptographically signed verifiable credential is issued. If the citizen already holds a credential issued by a qualified third party, it is accepted as the source of verification instead of repeating it.
The credential lives in the citizen’s wallet, under their own control.
The platform requests validation through a zero-knowledge proof.
The platform receives only a yes or a no, without accessing any personal data.
Safe Digital Identity is an open standard: any platform can integrate it. It relies on W3C verifiable credentials, decentralised identifiers (DID) and zero-knowledge proofs (ZKP), and is positioned as a service and certification layer that complements — not competes with — Europe’s public digital identity infrastructure.
Protected digital identity is not only technology: it is also supervision and education. Each mechanism prevents a real risk.
| Mechanism | What it does | Risk it prevents |
|---|---|---|
| Information control | Private profile, controlled contacts and restricted messages | Grooming |
| Identity verification | Prevents the minor from sharing age, address or exploitable images | Sextortion |
| Privacy and security | Reduces the risk of being singled out as a victim | Non-consensual sharing of images |
| Digital education | Teaches how to recognise suspicious behaviour and how to block and report | Online sexual harassment |
| Traceability and reporting | Records interactions and speeds up reports | Fake adult profiles |
The infrastructure will also make it possible to detect fake profiles and limit adults’ access to spaces for minors.
The European framework — GDPR, DSA, eIDAS 2.0 — provides a solid regulatory base, but a structural gap remains: the absence of a technological infrastructure that makes it possible to prevent risks without compromising privacy.
2YES proposes a collaboration between public administrations, universities, digital platforms and technology providers, in three phases: pilots in controlled environments, definition of standards and certification, and scaling at regional, national and European level.
The expected impact: protection of minors, prevention of conflict and violence, greater trust in the digital ecosystem and European technological sovereignty.
2YES · Con·Sent is an app that lets two people express their consent clearly, voluntarily and consciously before a sexual relationship, with a private, encrypted and time-sealed record, and revocation at any time. On that base we are developing Safe Digital Identity (SDI), an infrastructure for verifying identity and legal age based on W3C verifiable credentials, decentralised identifiers and zero-knowledge proofs, designed to integrate with the European Digital Identity Wallet (eIDAS 2.0) once it is available.
It is a project of Solid Consent, S.L., based in Barcelona.

Chair of the Board of Directors
Criminal lawyer. Responsible for the project’s criminal-law design and for institutional relations.

Chief Strategy Officer and Secretary of the Board
Responsible for strategy, technology and product.

Chief Executive Officer
Responsible for operations, funding and business development.
2YES is nobody's shield. Consent is free, ongoing and revocable. The app exists to help express it clearly and withdraw it without friction.
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