Interface Hunt

Find UI/UX bugs in our anonymous crypto exchange and earn a share of the $5,000 USDT prize pool

Program Duration: 17 nov - 17 dec

Anonymous Paricipation: no KYC

Next-Generation Anonymous Crypto Exchange

NullSwap is a decentralized platform for cross-chain cryptocurrency swaps operating without KYC. We use cutting-edge technologies to ensure security and anonymity for every transaction.

Low fees starting from 0%

Complete anonymity

EVM network support

Monero support

Fast transactions

Reward Levels

Severty Description Bug Examples Reward
Critical Complete functionality blocking Swap button doesn't work
Unable to confirm transaction
Incorrect amount calculation		 $100-150
High Serious UX issues Incorrect balance
False transaction error
Unable to modify order		 $75-100
Medium Usabulity disruption Validation issues
Guidline non-compliance
Non-clickable elements		 $30-60
Low Cosmetic defects Incorrect spacing
Display isuues
Typos		 $5-10

*Final amount is determined based on criticality, reproducibility, and report quality

What's Included in the Program

In Scope

  • NullSwap core web application
  • Swap functionality
  • Token selection interface
  • Wallet connection process
  • Balance and history display

Out of Scope

  • Backend API
  • Smart contracts
  • Mobile applications
  • Infrastructure vulnerabilities
  • Phishing attacks

What to Pay Attention To

Functionality

  • ✓ All buttons and links work correctly
  • ✓ Transactions execute without errors
  • ✓ Data updates in real-time

Accessibility

  • ✓ Keyboard navigation
  • ✓ Alt tags for images
  • ✓ Sufficient color contrast

Usability

  • ✓ Intuitive user flow
  • ✓ Clear error messages
  • ✓ No "dead zones"

Visual Design

  • ✓ Consistent elements
  • ✓ Proper icons and images
  • ✓ Correct display across different devices

Participation Process

Step-by-step instructions

Registration

Fill out the Google form with your USDT (BEP-20) address for payouts

Testing

Explore the NullSwap interface and look for bugs according to the checklist

Reporting

Create a report in Google Docs with bug description, reproduction steps, screenshots/video

Submission

Submit the document link through the form with the label: [UI/UX Bug]

Reward

Expect confirmation within 7 days. Payouts are made by December 25, 2025

Brief Description
What happened?

Reproduction Steps
1. Go to swap page
2. Select tokens...
3. ...


Expected Result
What should have happened

Actual Result
What actually happened

Environment
- Browser: Chrome 119
- OS: Windows 11
- Resolution: 1920x1080
- Wallet: MetaMask

Evidence
[Screenshots/video required]

Wallet Address
0x...

$5000

Prize pool

$150

Max prize for bug

Recent Findings

Find out what bugs have already been found by other participants

Open

List with warning icons:

Duplicates are not compensated

Priority

Priority given to first unique report

Decision

Final decision rests with NullSwap team

Follow responsible disclosure principles

Known bugs to the team are not accepted