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Comparing Bitfinex Lending Bots: EarnUSD vs Willy vs FULY (2025 Beginner's Complete Guide)

2025-09-02·6 min read
Contents

Why do we need lending "robots"?

Manual lending requires constant monitoring of market fluctuations, adjusting interest rates and loan terms, which is both time-consuming and prone to missing opportunities. After Bitfinex announced the discontinuation of Lending Pro in 2024, the general options now are:

  • Manual lending via the Funding page + Auto-renew for automatic renewal; or
  • Using third-party robots for real-time adjustments, splitting orders, and compounding interest to enhance capital utilization.
  1. EarnUSD (Beginner/Convenience-oriented)

    • Simple interface, support for Chinese and English, allows payment via credit card/USDT (PAYUNi/BitfinexPay) and electronic invoices.
    • Checks/executions every 5 minutes. Supports USD, USDT, BTC, and includes a BTC dollar-cost averaging tool.
    • The website provides a robot user manual and real-time lending rate tutorials, making it easy for beginners to understand at a glance.
    • Positioning: Bitfinex automatic lending robot that tracks the market 24/7, intelligently controls rates, and automatically places orders/renews loans.
    • Experience highlights:
    • Suitable for: Beginners who value English support, want to get started quickly, and prefer ongoing interest income.
  2. Willy (Rich community resources and tutorials)

    • Positioning: Bitfinex third-party automatic lending tool with comprehensive community resources and tutorial articles.
    • Key points: Common settings involve lending USD/USDT; after API integration, it can automatically place/cancel orders and renew loans.
    • Entry consideration: The minimum plan is at the "$10,000 USD level," using a personal account for receiving payments.
    • Suitable for: Those who want to use Telegram assistants or prefer its user interface.
  3. FULY (Rich in visual tutorials and interview stories)

    • Positioning: Bitfinex automatic lending robot with detailed beginner tutorials, risk explanations, and practical screenshots available online.
    • Highlights: Rich content; provides suggestions on how beginners can choose plans based on their capital scale.
    • Multi-currency support: Supports USD/USDT and other currencies, but the actual number of currencies that can be activated simultaneously depends on the plan level.
    • Suitable for: Readers who enjoy step-by-step screenshot tutorials and want to see a complete explanation of risk/reward ranges.

Quick comparison table (Key points for beginners)

The table focuses on the three differences that beginners most commonly ask about: update frequency, currency flexibility, and entry threshold/fee structure. Actual details should refer to each official website/pricing page.

Aspect EarnUSD Willy FULY Bitfinex Auto-renew (Official)
Order placement/interest rate check frequency 5 minutes Commonly 15 minutes Commonly 20 minutes Automatically renews, but does not actively re-list at the best market rate
Currency support USD/USDT/BTC USD/USDT USD/USDT + other currencies (depending on the plan) Based on Funding market currencies
Entry/Fees Monthly fee starting at $3, low management fees, Taiwan payment/invoice Monthly fee starting at $22 Monthly fee starting at $23 No monthly fee, but requires manual setup, with the lowest strategy flexibility

Cost comparison of different plans

Based on a $10,000 lending amount:

  • EarnUSD annual fee: 43 USD
  • Willy annual fee: 86 USD
  • FULY annual fee: 92 USD

Assuming an annual profit of 15% on $10,000, the profit is 1500 USD. After deducting the annual fee, the actual profits are:

  • EarnUSD actual profit: 14.57%
  • Willy actual profit: 14.14%
  • FULY actual profit: 14.08%

Based on a $100,000 lending amount:

  • EarnUSD annual fee: 124 USD
  • Willy annual fee: 196 USD
  • FULY annual fee: 200 USD

Assuming an annual profit of 15% on $100,000, the profit is 15,000 USD. After deducting the annual fee, the actual profits are:

  • EarnUSD actual profit: 14.87%
  • Willy actual profit: 14.8%
  • FULY actual profit: 14.8%

Based on a $200,000 lending amount:

  • EarnUSD annual fee: 181 USD
  • Willy annual fee: 396 USD
  • FULY annual fee: 398 USD

Assuming an annual profit of 15% on $200,000, the profit is 15,000 USD. After deducting the annual fee, the actual profits are:

  • EarnUSD actual profit: 14.91%
  • Willy actual profit: 14.8%
  • FULY actual profit: 14.8%

Robot activation speed

  • After funds are deposited into Bitfinex, activating the lending robot for FULY takes a long time before it starts lending, and the lending order information is not updated in real-time.
  • Willy's order placement activation and order information updates are much faster than FULY, resulting in less anxiety.
  • EarnUSD uses a different technology, activating the robot immediately places orders, and the order information is updated in real-time, reducing the waiting period for lending and providing an immediate sense of earning interest.

Trial period comparison

  • FULY and Willy only offer a 7-day trial period, which is a bit unfortunate as you can't see performance before the trial ends.
  • EarnUSD offers a 1-month trial period, allowing me to try different lending strategies, making it more reassuring to subscribe afterward.

Multi-currency lending comparison

  • FULY's entry plan only allows for either USD or USDT; if you want more currencies, you need to upgrade the plan.
  • Willy allows USD and USDT across all plans.
  • EarnUSD offers unlimited plans that include USD, USDT, and BTC.

Loan Execution Cycle

  • Fuly entry plan updates orders every 20 minutes.
  • Willy entry plan updates orders every 15 minutes.
  • EarnUSD unlimited plan updates orders every 5 minutes,and if high-rate orders are available, it updates every 1 minute.。
  • The shorter the update interval for high-interest orders, the easier it is to secure good rates, resulting in better interest performance.

High-Interest Notifications

  • Fuly and Willy entry plans do not provide notifications.
  • Fuly advanced plan uses Telegram notifications.
  • Willy advanced plan uses Email notifications.
  • EarnUSD unlimited plan uses Telegram notifications.
  • The main purpose of high-interest notifications is to remind users that if they have idle funds, they can immediately deposit them into Bitfinex for lending.

Payment Methods

  • Fuly and Willy's monthly fees require quarterly payments at a minimum, which can be a waste for short-term use.
  • EarnUSD has a minimum payment period of one month, allowing users to activate or deactivate their accounts at any time, offering more flexible fund usage.
  • Payments for Fuly and Willy must be made in USDT to the Bitfinex personal account, and users must notify customer service to activate their accounts, which is quite cumbersome.
  • EarnUSD allows payments via credit card and USDT, and activation is immediate upon checkout, making it very convenient.
  • If users want to adjust the lending amount in EarnUSD, they can pay the difference online without consulting customer service, making it instantly usable.

Automatic Logout

  • Fuly and EarnUSD allow long-term login without needing to log in again, which is convenient for users who frequently check orders.
  • Willy will automatically log out after a period of inactivity, making it more troublesome for frequent order checks.

Conclusion

EarnUSD, with its super simple setup, powerful intelligent algorithms, and compound interest features, provides users with a truly worry-free and efficient passive income solution.

FAQ

How do I choose a Bitfinex lending bot?

Check five things: how well its algorithm captures high rates, the fee model, supported currencies, whether it only uses an API (never touching your principal), and support/language. Test each one's free trial before deciding.

How do EarnUSD, Willy and FULY differ?

They're positioned differently: EarnUSD supports USD/USDT/BTC, re-checks rates every 5 minutes, with an EN/中文 interface; FULY emphasizes multilingual support. Trial periods, fees and supported coins vary — compare actual matched rates during the trial.

Will a lending bot touch my principal?

A legitimate bot only uses a Bitfinex API key with lending permission. Your funds stay in your own Bitfinex account the whole time; the bot can only place/cancel offers, never withdraw.

Is a paid lending bot worth it?

It's worth it if the extra rate it earns covers the monthly fee. Capturing rates above FRR plus avoiding idle funds usually pays off once your principal is large enough.

Ready to put your crypto to work?

EarnUSD automates Bitfinex lending for you — set it once and earn daily interest, hands-free. Non-custodial: your funds never leave your own Bitfinex account.

Start free — 1-month trial →

No credit card required. Cancel anytime.

Further reading