Back

Caiz Crypto Wallet App

Mobile — Holding, Sending and Securing

Project Overview

Caiz is an ethical finance blockchain ecosystem built around Caiz Coin, a Fiqh-compliant digital currency designed for interest-free transactions. The mobile app is where people actually hold and move their assets — checking balance, sending and receiving, and proving who they are.

The design problem is that crypto's native interface language is hostile to newcomers. Wallet addresses are unreadable strings, transfers are irreversible, and security setup is usually a wall placed in front of someone who hasn't yet decided to trust the product. I designed the app so that a first-time holder can complete critical financial tasks without needing to understand the mechanics underneath them.

Visual DesignUX ResearchProduct DesignApp DesignInteraction DesignCross-platform DesignPrototypingUX Design
RoleSole Product Designer — Information Architecture, Interaction Design, Design System, Reported to the board
ClientCaiz — Ethical blockchain and digital finance ecosystem

Project Highlights

Value in the currency people think in. Every balance shows the crypto amount and its fiat equivalent together. Someone holding 4,521.2 CAIZ needs to know what that means in the currency they buy groceries with — the conversion isn’t a secondary detail, it’s the number most people are actually reading.

Three asset types, one wallet. CaizCoin, CaizStable and CaizGold differ in what backs them but share a list, a detail view and a transaction pattern — one model to learn rather than three.

QR in both directions. Public keys are long strings nobody can transcribe safely, and a mistyped address in crypto means funds are gone. Receiving surfaces the key as a scannable code with copy; sending leads with the scanner. Manual entry stays available but is never the expected path.

Security as a choice, not a gate. PIN, pattern, Touch and Face ID, and two-factor authentication are all offered rather than imposed, so people pick the level of friction they’ll actually tolerate daily.

Verification shown as an unfinished task. KYC status sits in the account area with a visible pending state and a direct action, rather than being buried until a transaction fails because of it.