Sponsored Transactions

QR Wallet pays network fees for you. Free transactions are real.

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How It Works

Every blockchain transaction requires "gas" — a network fee. In most wallets, users pay gas themselves in native tokens (ETH, MATIC, BNB).

QR Wallet does it differently. When you send a transaction:

1. The app checks: do you have remaining sponsored TX?

2. If yes → QR Wallet pays the gas via Paymaster

3. If no → you're offered stablecoin or native token payment

Paymaster is a smart contract that signs permission to pay gas on behalf of the user. The blockchain charges the Paymaster, not your wallet.

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Transaction Flow — Step by Step

Here's what happens under the hood when you tap "Send":

Step 1   Confirm action
          ↓
Step 2   Biometric authentication (Face ID / fingerprint)
          ↓
Step 3   Build UserOperation
          Description: to whom, how much, which network
          ↓
Step 4   Request Paymaster
          Sponsored → Paymaster signs that it will pay
          Gasless   → fee calculated in USDC/USDT
          Self-pay  → gas calculated in native token
          ↓
Step 5   Sign UserOperation with your key
          Proof that you approved the operation
          ↓
Step 6   Send to Bundler
          Service that packages the operation into a transaction
          ↓
Step 7   Bundler submits transaction to blockchain
          ↓
Step 8   EntryPoint contract verifies and executes
          ↓
Step 9   Paymaster pays the gas (if sponsored)
          ↓
Step 10  Done! Funds delivered.

Speed

Network	Time
Base, Optimism, Arbitrum	2–5 seconds
Polygon, BNB Chain	3–7 seconds
Ethereum	15–30 seconds

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What Consumes a Sponsored TX?

Action	Consumes TX?
Send tokens	✅
Swap	✅
Bridge (cross-chain)	✅
Staking	✅
Borrow	✅
Buy Premium	✅
Receive tokens	❌
SA Activation	❌ (separate limit)

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Daily Limit & Reset

• Counter resets every day at 00:00 UTC

• Unused TX do not accumulate — they expire at end of day

• Limit depends on Premium tier and NFT bonuses

Limits by Tier

Tier	Sponsored TX/day
Free	0
Day	0
Month	3
Year	5
Lifetime	10

NFT Bonuses to Daily Limit

NFT	Extra TX/day
Hunter NFT	+1
OG NFT	+2

Example: Year + Hunter NFT + OG NFT = 5 + 1 + 2 = 8 TX/day

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Static TX

In addition to daily limits, you may have static sponsored TX — they don't reset daily. These are bonus TX earned through promotions, referral programs, and other activities.

Spending priority: daily TX are consumed first, then static.

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Supported Networks

Network	Sponsored TX	Cost for QR Wallet
Base	✅	~$0.02
Arbitrum	✅	~$0.03
Polygon	✅	~$0.01
Optimism	✅	~$0.02
BNB Chain	✅	~$0.05
World Chain	✅	~$0.02
HyperEVM	✅	~$0.02
Monad	✅	~$0.02
Plasma	✅	~$0.02
Ethereum	✅ (temporary)	~$3–10

Ethereum: Sponsored transactions on Ethereum are available temporarily until March 2026 as part of an early adopter promotion. After that, Ethereum will switch to self-pay/gasless mode due to high gas costs.

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What If TX Run Out?

You're not locked out. Three options:

1. Gasless — pay gas in USDC/USDT (stablecoins)

2. Self-pay — pay gas in native token (ETH, POL, BNB)

3. Wait — limit resets at 00:00 UTC

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FAQ

Do failed transactions count?

No. If a transaction fails, the sponsored TX is not consumed.

Can I check my remaining balance?

Yes — the Premium card in the app shows usage: 3/5 TX.

Does it work on Solana?

Yes, Solana uses a separate fee sponsorship mechanism.