Credica

Credica — Your trusted digital identity wallet, where every credential can be verified.

From a single business card to a complete identity wallet. Your role, memberships, event attendance, and qualifications — all worth being trusted, all worth being verified.

Credica is built on W3C standard Verifiable Credentials. Everywhere you need to prove "who you are" and "what you've done", Credica gives you a wallet you own, can present at any time, and that any verifier can confirm.

Four core values

【One wallet, every verifiable credential】 Digital business cards, membership cards, event attendance, qualifications, professional certifications — all stored in the same W3C standard format. Receive credentials via QR code, LINE Bot, or deep link. Future integration with Taiwan's national Digital Identity Wallet (TW DIW) is planned.

【Truly verifiable】 End the era of fake résumés, fake business cards, and fake identities. Every credential is signed cryptographically by its issuer — you don't need to trust the platform, only the signature. Supports corporate domain verification, email and phone confirmation, and future government-grade identity proofs.

【Your privacy, your call】 All credentials and contacts are stored on your device only — never uploaded to any cloud. Every time you present a credential, you decide which fields to reveal (selective disclosure via SD-JWT). Not a marketing claim — an architectural reality: end-to-end encryption, on-device processing, zero server storage.

【Smart relationship management】 On-device intelligence automatically identifies duplicate contacts and merges them. Career transitions are tracked while preserving complete history — turning "collecting business cards" into "managing trusted relationships".

Full feature list

Credential Wallet

• Digital business cards — multiple cards, switch per occasion
• Membership credentials — auto-issued when joining an organization, verifiable at the gate
• Event credentials — registration, check-in, attendance all verifiable
• Certifications — receive W3C standard credentials from any issuer

Identity binding & verification

• Corporate domain verification — prove employment via work email
• Email & phone verification — progressive trust layers
• LINE one-tap binding — link your LINE account in one tap
• Government Digital Identity (planned) — link Taiwan's TW DIW for top-tier trust

Exchange & sharing

• QR code exchange — under a second
• Group exchange — create a room at events, swap with everyone at once
• Link sharing & SMS pairing — for remote exchanges
• Selective disclosure — choose which fields to share per exchange

Events & membership

• Event registration & check-in — enter with a credential, receive attendance proof
• Membership lifecycle — auto-issued on payment, renewal reminders
• LINE Bot interaction — sign up, pay, claim credentials right inside LINE

Relationship management - Smart merge — the same contact across exchanges is recognized automatically; career changes are tracked - Categories, tags, notes — manage all contacts effortlessly - Interaction logs — voice memos, photos, occasion tags - Encrypted backup — password-protected full DB backup, switch devices safely

Built for

• Professionals who attend conferences, summits, and business events
• Executives and managers who value relationship quality over quantity
• Privacy-conscious users with high data protection standards
• Founders and freelancers building a trustworthy professional brand
• Organization administrators (members, events, credentials in one place)

Website: https://credica.app Support: support@credica.app

Your identity, your call. Trust starts with verifiability.