Fly.io Premium: ERC20 vs TRC20 — Which is Cheaper?

Why Paying for Fly.io with USDT?

You need Fly.io Premium for deploying apps. But if you’re in a country with banking restrictions or just don’t trust KYC, paying with a credit card is a no-go. USDT solves this. The question is: which network — ERC20 or TRC20 — gives you the cheapest rate?

The Price of Fly.io Premium

Fly.io Premium costs $29 per month (as of January 2026). If you pay via USDT, the exchange rate is effectively 1 USDT = $1, but network fees differ hugely.

ERC20 vs TRC20: The Fee Breakdown

ERC20 (Ethereum): Gas fees for a USDT transfer typically range from $5 to $40 depending on congestion. In January 2026, average gas is about $12. So sending $29 USDT on ERC20 costs you $41 total.

TRC20 (Tron): Tron network fees are fixed at around $0.80 per transfer. Sending $29 USDT on TRC20 costs you $29.80.

Which Is Cheaper?

TRC20 wins by a landslide. For a single monthly payment, you save $11.20. If you pay annually ($348), ERC20 fees could total $144, while TRC20 fees are just $9.60. That’s a saving of $134.40 per year.

How to Pay for Fly.io Premium with USDT (TRC20)

1. Buy USDT on an exchange like Binance or KuCoin.
2. Send it to your preferred wallet (e.g., MetaMask for ERC20, TronLink for TRC20).
3. Go to Fly.io’s billing page and select “USDT Payment”.
4. Choose TRC20 network and complete the transfer.

Common Pitfalls

• Always send a test transaction first (especially on ERC20).
• Make sure you select the correct network — sending ERC20 to a TRC20 address will lose funds.
• Some exchanges charge withdrawal fees; Binance charges 1 USDT for TRC20, 4 USDT for ERC20.

FAQ

Q: Can I pay for Fly.io Premium with USDT directly? A: Yes, Fly.io accepts USDT on both ERC20 and TRC20 networks via third-party payment processors.

Q: Which USDT network is recommended for Fly.io? A: TRC20 is cheapest, with fees under $1 vs $12+ for ERC20.

Q: Are there any KYC requirements for USDT payments? A: No, Fly.io does not require KYC for USDT payments — just a wallet address.

Q: What if I send USDT on the wrong network? A: Funds are likely lost. Always double-check the network before sending.

Q: Is there a minimum payment amount? A: Yes, Fly.io requires a minimum of $10 USDT per transaction.