01 — Splash Screen

₿

CryptoPay

Seamless Crypto Payments

AVEOSOFT

150+

Coins

2M+

Users

$50B+

Volume

$2.41T

Global Market Cap

↑ +3.2%

02 — Login

9:41

●●●

Welcome Back

$58,432

Bitcoin Price

↑ +4.21%

📧

🔒

🔐

2FA

Two-Factor Auth Enabled

Extra security layer active on this account

03 — Sign Up

9:41

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Create Account

👤

📧

🔒

🔑

Enable 2FA Security

Enable Biometric Login

Password Strength85%

01 — Portfolio Dashboard

9:41

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$48,392.50

Total Portfolio Value — +$1,243 today

📈

+$1,243

Today P&L

+2.64%

24h Change

12

Assets

Portfolio Performance (7D)

Mon

Tue

Wed

Thu

Fri

Sat

Sun

$28,150

Bitcoin (BTC)

↑ +4.2%

$12,480

Ethereum (ETH)

↑ +1.8%

$4,320

Solana (SOL)

↑ +6.4%

Home

Market

Pay

History

Profile

02 — Asset Allocation

9:41

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Asset Allocation

Bitcoin

$28,150 — 58.2%

Ethereum

$12,480 — 25.8%

Solana

$4,320 — 8.9%

Monthly Returns (%)

Jan

Feb

Mar

Apr

8.7%

Avg Monthly Return

↑ +2.1%

Home

Market

Pay

History

Profile

01 — Send Crypto

9:41

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Send Payment

Crypto

Stablecoin

Token

0.4821 BTC

Available Balance

↑ $28,150 USD

🔗

₿

Est.

Fee

Network Fee: 0.00012 BTC

~$7.01 — Medium Priority — ~10 min

Est.

Time

Confirmation: ~10 minutes

2 block confirmations required on Mainnet

Mainnet

Home

Market

Pay

History

Profile

02 — Receive Crypto

9:41

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Receive Payment

BTC

ETH

USDT

SOL

Your BTC Address

bc1qxy2kgdygjrsqtzq2n0yrf...8c3x

📱

bc1qxy...8c3x

Wallet Address

↑ Tap to copy

32

Received TXs

0.482 BTC

Total In

$28,150

USD Value

Home

Market

Pay

History

Profile

03 — Payment Confirmation

9:41

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Transaction Confirmed

Confirmed

2/2 Block Confirmations

0.0521 BTC

Amount Sent

↑ $3,042 USD

TX

ID

a3f8b2e1...9d4c

Block #832,145 — 12 minutes ago

Fee

Paid

0.00012 BTC Network Fee

$7.01 — Medium Priority — Finalized

Success Low Fee

Home

Market

Pay

History

Profile

01 — My Wallets

9:41

●●●

My Wallets

$48,392

Total Across All Wallets

↑ +2.64%

₿

Bitcoin Wallet — Mainnet

$28,150.00 0.4821 BTC

★★★★★

Ξ

Ethereum Wallet — EVM

$12,480.00 3.842 ETH

★★★★★

◎

Solana Wallet — Mainnet

$4,320.00 42.1 SOL

★★★★★

Wallet Balance History (30D)

Wk1

Wk2

Wk3

Wk4

Home

Market

Pay

History

Profile

02 — Wallet Security

9:41

●●●

Security Center

Security Score

4 of 5 checks passed

Biometric Authentication

Two-Factor Authentication (TOTP)

Transaction PIN Lock

Last

Login

Today 09:42 AM — Verified

Pixel 8 Pro — New York, US — Biometric

Seed

Backup

Seed Phrase Not Backed Up

Risk: HIGH — Tap to backup securely now

Home

Market

Pay

History

Profile

01 — Live Market Overview

9:41

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Crypto Markets

All

Gainers

Losers

DeFi

Layer 2

$2.41T

Total Market Cap

↑ +3.2%

24h Volume by Asset ($B)

BTC

ETH

BNB

SOL

XRP

₿

Bitcoin (BTC)

$58,432.10 24h Vol: $48.2B +4.21%

★★★★★

Ξ

Ethereum (ETH)

$3,241.88 24h Vol: $22.1B +1.87%

★★★★★

◎

Solana (SOL)

$102.54 24h Vol: $5.8B +6.42%

★★★★★

Home

Market

Pay

History

Profile

02 — BTC Price Detail

9:41

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Bitcoin (BTC)

$58,432.10 — +4.21% today — Rank #1

₿

1H

1D

1W

1M

1Y

BTC Price 7D (Thousands USD)

Mon

Tue

Wed

Thu

Fri

Sat

Sun

$47.2K

7D Low

$59.1K

7D High

$58.4K

Current

$1.12T

Market Cap

↑ +4.21%

Home

Market

Pay

History

Profile

01 — Transaction History

9:41

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Transaction History

All

Sent

Received

Swaps

142

Total TXs

$89.2K

Total Sent

$112.4K

Total Received

Apr

22

Sent 0.052 BTC to 3Fx8...4d2a

Confirmed — $3,042 — Fee: $7.01

Apr

21

Received 1.42 ETH from 0xab...9f32

Confirmed — $4,603 — Fee: $4.20

Apr

20

Swapped 500 USDT to 0.0085 BTC

Confirmed — DEX Swap — Fee: $2.10

Apr

19

Received 0.21 BTC Payment

Confirmed — $12,270 — 3 confirmations

Weekly TX Volume ($K)

Mon

Tue

Wed

Thu

Fri

Home

Market

Pay

History

Profile

02 — Transaction Detail

9:41

●●●

Transaction Details

Finalized

3/3 Block Confirmations

0.052 BTC

Amount Transferred

↑ $3,042 USD

TX

Hash

a3f8b2e19d4c...f23a

Tap to copy full transaction ID

From

Addr

bc1qxy2kgdyg...8c3x (Your Wallet)

Bitcoin Main — Mainnet

To

Addr

3Fx8b2...4d2a (External)

Unverified External Wallet Address

Confirmed Low Fee

Home

Market

Pay

History

Profile

01 — User Profile

9:41

●●●

My Profile

Gold Trader

142 Transactions — Member 14 months

🏆

142

Transactions

$48.4K

Net Worth

14 mo

Member

KYC Status

Tier 2 Verified — $50K limit

Level 4

Trader Level

↑ Gold Status

🔔

Price Alerts & Notifications

›

🔐

Security & 2FA Settings

›

📊

Tax Report & CSV Export

›

🌐

Network Preferences (Mainnet)

›

Home

Market

Pay

History

Profile

02 — App Settings

9:41

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App Settings

Dark Mode

Push Notifications

Biometric Login

Auto-confirm Low-Fee Transactions

💱

Default Currency

USD — US Dollar

Change

⛽

Default Gas Setting

Medium Priority

Edit

🔗

Connected Networks

Mainnet, Polygon, BSC

Manage

v2.4.1

App Version (Flutter)

↑ Up to date

Home

Market

Pay

History

Profile

Feature Stack & Deliverables

Complete overview of confirmed features, deliverable items, and technical architecture for CryptoPay.

🏗️

Tech Stack

FlutterDart / BLoCWeb3Dart / EVMBitcoinDartFirebaseFlutter Secure Storage

⚡

Core Technologies

📱

Flutter — Cross-platform mobile framework for Android & iOS Play Store release

🎯

Dart / BLoC — Primary language with BLoC state management for reactive UI

🔗

Web3Dart / EVM — Ethereum & EVM blockchain interaction, smart contract calls, gas estimation

₿

BitcoinDart — Bitcoin HD wallet generation, UTXO management, and TX broadcasting

🔥

Firebase — Real-time price feeds, push notifications, user auth & analytics

🔐

Flutter Secure Storage — Encrypted local key storage using Android Keystore & iOS Secure Enclave

📦

V1 Deliverables Checklist

Flutter Android APK + Play Store AAB release bundle
Multi-chain crypto payment integration (BTC, ETH, USDT, SOL)
HD wallet generation with BIP-39 seed phrase backup & import
QR code send/receive payment flows with ENS name resolution
Real-time market data dashboard with price alert system
Transaction history with blockchain explorer deep-links
KYC identity verification (Tier 1 & Tier 2) integration
Biometric login & TOTP two-factor authentication
Play Store listing: screenshots, feature graphic, ASO metadata
End-to-end test suite, CI/CD pipeline (GitHub Actions + Fastlane)

🔧

Architecture Layers

Presentation

Flutter / Dart

BLoC state management, custom crypto widget library, dark mode theming, responsive layouts

Business Logic

Dart / BLoC

Payment processing, portfolio calculation, fee estimation, market data aggregation, alert engine

Blockchain Layer

Web3Dart + BitcoinDart

TX signing & broadcasting, multi-chain support (ETH, BTC, BSC, Polygon), gas oracle, UTXO selection

Data & Backend

Firebase + REST APIs

Firestore for user data, real-time price WebSocket feeds, CoinGecko & CryptoCompare API integration

Security

Flutter Secure Storage + Keystore

AES-256 private key encryption, Android Keystore, iOS Secure Enclave, certificate pinning, jailbreak detection

CryptoPay

Onboarding

CryptoPay

Portfolio

Crypto Payments

Wallet Manager

Market Data

Transactions

Profile & Settings

CryptoPay

Feature Stack & Deliverables

Tech Stack

Core Technologies

V1 Deliverables Checklist

Architecture Layers