Bitflyer vs Kuna: Fees, Security, Features & Which to Choose (2025)

Trying to choose between Bitflyer and Kuna This side-by-side comparison reveals total cost (fees + spreads), security & licenses, coins/derivatives, deposits/withdrawals, and app quality. In 2 minutes you’ll see who wins for beginners, active traders, and long-term holders. Clear pros/cons, a quick verdict, and safe links to get started.

Last updated on August 16, 2025

Bitflyer

Kuna

⚠️ We look for what’s best for you.

₿ Getting into crypto? With eToro you can start in minutes: buy/sell top coins, set recurring buys, track markets, and use Social/CopyTrader features.

👉 Start here and explore the crypto offer.

Available Countries

United States

Yes

Europe

Yes

Latin America

India

China

Canada

United Kingdom

Yes

United States

Yes

Europe

Latin America

India

China

Yes

Canada

Yes

United Kingdom

Thinking about starting with crypto? This is for you.

In select regions, eToro offers a $10 welcome bonus when you open an account today.*

🎯 An account built to help you start with crypto—without the hassle.

➕ Buy and sell top cryptocurrencies in minutes

➕ Recurring buys, price alerts, and advanced charts

➕ Social/CopyTrader™ to follow experienced investors

➕ One of the largest and most trusted platforms worldwide

Limited-time promotion — still available.

*Offer subject to terms, eligibility and regional availability. Don’t invest unless you’re prepared to lose all the money you invest.

Bitflyer is ideal if:

Great for cautious starters – Offers a clean, beginner-friendly interface with strong regulation and security, especially suited if you value peace of mind and a guided experience.
Smart for professionals too – Its Lightning platform and API support advanced trading styles while remaining within a trusted, compliant ecosystem.
Best for mainstream assets – Focuses on the core major cryptocurrencies rather than obscure altcoins—ideal if you're after simplicity, not a sprawling asset list.

Kuna is ideal if:

Effortless Quick Buys – If you prefer rapid purchases without account creation, Kuna’s “5-click” system lets you buy Bitcoin, Ethereum, or Tether in around 30 seconds directly to your wallet.
Straightforward and Friendly UI – Kuna offers a clean, intuitive interface (web and mobile) that’s especially suitable for newcomers and those who value simplicity and smooth navigation.
Regional Fiat Flexibility – If you're in supported areas, Kuna enables seamless fiat-to-crypto trades using local methods in UAH, USD, or RUB, plus tools like cash codes—making funding your trades frictionless.

Bitflyer isn’t ideal if:

Not for altcoin hunters — Offers only a small selection of mainstream cryptocurrencies, limiting your options if you're looking to explore lesser-known tokens.
Limited advanced trading tools — Lacks robust derivatives, futures, lending, and staking features that active or margin traders often need.
Less competitive for cost-focused users — May involve higher spreads or fewer deposit options compared to more versatile, low-cost exchanges.

Kuna isn’t ideal if:

Limited Asset Variety – If you're looking to trade a wide range of cryptocurrencies or exotic altcoins, Kuna offers only a modest selection that may feel restrictive.
Basic Trading Tools Only – For those seeking advanced charting, technical indicators, or professional-grade trading features, Kuna’s platform remains quite simplistic.
No PayPal or Wallet Options – If you prefer funding your account with PayPal, Skrill, or Neteller, or need live chat or phone support, you’ll find those options aren’t available here.

Fees & Total Costs

Spot Maker/Take

On bitFlyer’s Lightning Spot, maker and taker fees decrease progressively as your 30-day trading volume grows—from about 0.10 % at lower volumes down to roughly 0.03 % for very high turnover, with potential bespoke discounts for particularly active users or sizeable trades.

Kuna applies a flat 0.25 % trading fee for both makers and takers, without tiered volumes—though holding at least 100 KUN tokens grants VIP status, which waives maker fees entirely.

Futures/Derivatives

bitFlyer offers Bitcoin futures and crypto CFDs with margin, where trading fees fall in the same low double-digit-basis-point range, plus a funding cost applied at fixed intervals based on price divergence from spot—creating a small rollover cost for open positions.

Kuna does not offer futures or other derivative trading instruments; therefore, there are no associated maker, taker, or funding fees.

Average Spreads on Liquid Pairs

Spread information isn’t explicitly disclosed on bitFlyer, but based on its exchange design, liquid pairs typically carry modest spreads that are embedded in prices, especially via the Easy Exchange interface where the buy/sell price includes conversion margin rather than a separate fee.

Kuna does not publicly disclose spread data, and their simplified fee model suggests minimal hidden spread, though precise average figures for these pairs are not available.

Fiat Deposits & Withdrawals

methods, fees, timing

Fiat deposits are accepted (e.g., via credit card for Ukrainian-issued Visa/Mastercard or via methods like Perfect Money, Payeer, Advanced Cash, or Kuna Code), with variable fees depending on the method—withdrawals mirror those deposit options, again with method-dependent fees and typical processing within short timeframes.

On-chain Withdrawals

fixed vs dynamic fees

Crypto withdrawal fees are based on asset and network; for example, withdrawing BTC incurs a fixed fee of approximately 0.0005 BTC. Other assets like ETH or TRX may have different dynamic fees, though Kuna doesn’t specify those publicly across all networks.

Hidden Costs

There are no apparent idle-account or express-KYC charges; however, minor implicit costs can stem from currency conversion spreads if you’re using a non-native fiat, and any third-party wire or bank fees—which vary regionally—can affect your overall cost.

There’s no explicit information about inactivity fees or express KYC charges; however, currency conversion may incur a flat percent fee embedded in the exchange rate, depending on your selected method.

Real-World Cost Example: “€500 BTC

Buying €500 worth of BTC would entail a small embedded spread (via Easy Exchange) or low Lightning fee, plus the flat withdrawal charge (e.g., ~0.0004 BTC) if you choose to withdraw—resulting in a modest overall impact relative to the value but with no hidden or percentage-based surprises.

Buying €500 worth of BTC would incur the standard 0.25 % trading fee and any minor spread embedded by the platform, plus the fixed withdrawal cost of ~0.0005 BTC when sending the funds on-chain—exact totals depend on BTC’s live price at the time.

Crypto Offering & Trading Features

Number of Coins & Pairs

bitFlyer supports around 7–8 core cryptocurrencies with roughly 10–12 trading pairs, mainly focused on major assets like BTC, ETH, LTC, BCH, ETC, LSK, MONA, and a few fiat pairings—its offering remains intentionally compact.

Kuna lists approximately 22 to 40 cryptocurrencies and supports around 40 trading pairs, with the most active ones being BTC/UAH, ETH/BTC, ZEC/UAH, DAI/UAH, ZEC/USDT, KUN/USDT, BTC/USDC, and ETH/UAH.

Product Range

The platform offers spot trading, margin trading (up to around 2×–4× leverage depending on region), Bitcoin futures (derivatives), Ethereum staking (upcoming), and OTC for large volume trades—but lacks more exotic features like options, ETFs, lending, copy-trading, automated bots, or full DCA tools.

Kuna’s product suite is straightforward—spot trading only (crypto–crypto and crypto–fiat), no margin, derivatives, ETFs, lending, copy trading, grid bots, automatic DCA, or options; however, it does offer staking rewards through holding certain assets.

Liquidity

bitFlyer handles daily trading volumes in the low-hundreds of millions USD (with top pairs like BTC/JPY and ETH/JPY dominating), while its order book depth on main pairs remains modest compared with major global exchanges—sufficient for moderate trades but not for ultra-large orders.

Kuna’s 24-hour volume is modest (several million USD equivalent), with BTC/USDT and ETH markets showing some activity; however, order-book depth is not publicly detailed, suggesting liquidity is appropriate for medium-sized trades but not high-frequency institutional-level operations.

Tools

Advanced users benefit from a Lightning platform offering standard order types (limit, stop), custom alerts, charting, API and WebSocket access, and a native professional interface—but there’s no built-in TradingView integration or OCO orders.

Kuna supports basic order types like limit, market, and stop orders, features standard trading charts (not TradingView-native), and provides API access; it doesn’t offer advanced charting tools, OCO orders, price alerts, or built-in TradingView integration.

Geographic Restrictions by Product

Derivatives and margin capabilities vary by region, with limited pairs available in the U.S. (e.g., BTC/USD, ETH/USD, BCH/BTC) and broader altcoin access in Europe and Japan, reflecting regulatory constraints across jurisdictions.

While spot trading is broadly available, Kuna does not provide derivatives or advanced products in any region, and its services are restricted for U.S. users; features like staking may also be limited depending on local regulations.

Innovation

Recent enhancements include ETH staking (pending launch) and ongoing CFD asset expansions. However, bitFlyer does not currently offer launchpads, flexible vs locked Earn products, or structured innovative financial instruments.

Kuna’s innovation footprint includes unique tools like Kuna Code (transfer via code), Kuna Pay (payment processing), and browser extensions from the community, but it currently lacks features such as a launchpad, launchpool, or differentiated flexible vs locked earning programs.

Security, Regulation & Custody

Operating Entity & Jurisdiction

bitFlyer, Inc. was founded in 2014 and is based in Tokyo, Japan; it has extended operations internationally through regulated subsidiaries such as bitFlyer Europe to serve multiple regions globally.

Kuna was founded in 2014 in Ukraine and maintained operations through regional entities—including those in the UK and Lithuania—but as of March 2025, the platform has fully ceased operations and is no longer active.

Licenses/Registration

It holds Virtual Asset Exchange licensing under Japan’s FSA, and its European arm is a fully regulated payment institution in Luxembourg, holds the first VASP registration there, and undergoes annual audits by a Big Four firm.

Kuna did not hold formal VASP licenses under European frameworks like MiCA, nor did it register under equivalent regimes; current regulatory programs such as those in the Cayman Islands or EU never applied to Kuna due to its closure prior to implementation of those licensing regimes.

Custody

Customer assets are stored offline in proprietary cold wallets (often over 80–100%), with multilayer physical security; while specific Proof of Reserves disclosure isn’t public, financial statements undergo external audit and assets are held separately from company funds.

Kuna undertook what it called “the largest Proof of Reserves in history” to demonstrate backing of user funds, though there is no evidence of third-party audits, formal PoR implementation, or specified cold storage reserve ratios.

Insurance & Protection Funds

There’s coverage for unauthorized withdrawal via encrypted authentication and secure wallet infrastructure, but no widely advertised comprehensive insurance fund for hacks or exchange-level failures.

No formal insurance products or customer protection funds were publicly offered or advertised by Kuna at any point during its operation.

Incident History

Apart from regulatory enforcement fines (e.g., levied by New York DFS), bitFlyer does not have public records of hacks or fund losses, reflecting a clean operational history with no major security breaches or customer fund suspensions.

Kuna maintained a calm incident history, with no publicly documented hacks, platform outages, account freezes, or regulatory fines reported prior to its closure.

Risk Controls

The platform enforces strong password policies, two-factor authentication, account lockouts, encryption, and segregates client and company funds; features such as whitelists, sub-accounts, anti-phishing, and granular API permissions enhance security.

Kuna offered basic security features such as two-factor authentication (2FA) and email confirmations, though advanced tools like withdrawal whitelists, anti-phishing measures, tiered sub-accounting, or granular API permission controls were not prominently supported.

Transparency

While bitFlyer doesn’t publish monthly reserve reports or wallet addresses, it provides audited compliance, segregated custodian practices, encryption standards transparency, and maintains clear regulatory and operational SLAs via its regional legal frameworks.

There were no monthly transparency reports, public audit statements, or disclosed service-level agreements. While the platform shared its initiative around reserves, ongoing financial transparency metrics or operational dashboards were not made available.

Deposits, Withdrawals, KYC & Support

Fiat Deposit Methods

Bank transfers (like SEPA, ACH, Fedwire) are available (sometimes free), with PayPal accepted in Europe; credit/debit card options depend on region, and deposit limits lift with full Trade Pro verification, while processing ranges from instant (cards) to 1–3 business days (bank transfers).

Fiat deposit options on Kuna include credit cards (limited to Ukrainian-issued Visa/MasterCard) and payment services like Advanced Cash, Perfect Money, Payeer, or Kuna Code; there’s no publicly stated minimum or maximum, and processing times vary—card payments can be nearly instant, while some transfer methods may take several minutes to days depending on method and region.

Supported Fiat Currencies & Conversion

KYC (Verification Levels)

Accounts start at a basic (Standby) level with entry-only access, upgrade to Trade Class to deposit and trade within limits, and finally Trade Pro unlocks unrestricted activity—requiring progressively more ID documentation during verification.

Kuna requires identity verification to unlock full functionality—basic account creation has limited access, and submitting documents (ID, proof of address) elevates you to a fully verified level, with no public breakdown of tiered access or trading limits, but verification is mandatory for fiat operations.

Withdrawals

Crypto withdrawals have fixed minimums (e.g., 0.001 BTC plus fee), fiat withdrawals via bank take about 1–3 business days, and supported networks include the standard ones like BTC and ETH—no TRC20/BEP20 options mentioned.

Cryptocurrency withdrawals on Kuna support networks like ERC-20, TRC-20, BTC (native), and others; BTC withdrawals, for example, incur a 0.0005 BTC fee and typically process within 10 minutes after email and 2FA confirmation—limits are set internally and not publicly disclosed.

Customer Support

Support is accessible via email and contact form (weekdays during business hours), with response typically within that timeframe; a FAQ/help center exists, but there’s no live 24/7 chat available.

Kuna offers multilingual support via the help center and ticketing system (English, Ukrainian, Russian), with an extensive FAQ and tutorial base—while there’s no 24/7 live chat, support is accessible through email or tickets, and response times are generally prompt but unspecified.

Languages & Localization

The platform offers native-level English (and other EU languages like French); pricing and fees are shown in local fiat (€/USD/JPY), with region-specific regulatory compliance embedded per locale.

The platform supports English (as well as Ukrainian and Russian), displays prices and fees in common fiat currencies like €/USD, and reflects some local regulatory positioning (e.g., awareness of Lithuanian VASP licensing), although it remains primarily headquartered in Ukraine.

App Quality & Stability

The mobile app supports core functions, is generally stable, though users report some limitations in advanced trading features, occasional minor bugs, and mixed ratings—recent updates aim to improve usability and reliability.

Kuna offers a mobile app for both iOS and Android that integrates core features like deposits and withdrawals; while there’s no public data on crash rates or update frequency, documentation includes instructions for confirming withdrawals via the app—suggesting a maintained and functional experience.

Experience, Performance & Ecosystem

UX/UI

bitFlyer strikes a balance between accessibility and power—casual users will find the Lite interface intuitive with a gentle learning curve, while experienced traders can switch to a Pro mode that offers deeper functionality without overwhelming novice users.

Kuna’s design is widely praised for being intuitive and accessible to beginners, with no separate “Lite” or “Pro” modes—just a unified interface that blends simplicity with functionality to help new traders start quickly while still serving seasoned users.

Performance

Order execution is generally responsive during normal conditions, but like many exchanges, there can be brief latency or slight slowdown during high-volatility spikes; KYC queues may also lengthen during strong bull runs, potentially delaying onboarding.

Users report that orders on Kuna process nearly instantly under normal conditions; while data on crashes during volatile markets or extended KYC backlogs is limited, the lightweight design and responsiveness suggest generally stable performance even under pressure.

Education

The bitFlyer Academy provides beginner-friendly articles and guides to help users understand crypto fundamentals, though there’s no live demo or simulator, and educational content in languages other than English is limited.

Kuna currently offers limited educational materials and lacks demo or simulator tools; content is primarily in English, Ukrainian, and Russian, with no dedicated academy or learning hub in Spanish available at this time.

Community

bitFlyer maintains an official help center and blog for updates, but lacks public community forums like Discord or Telegram; it does offer a referral program to incentivize bringing new users—but no broad peer-to-peer community space is currently provided.

Kuna fosters an active user community via its official Telegram and social media channels, alongside a generous affiliate/referral program (up to ~75% commission), though it doesn’t operate its own dedicated forums or Discord server.

Integrations

The platform supports API and WebSocket access for automated trading, yet does not offer native TradingView charts, external bot marketplaces, or integrated tax/accounting tools—so users typically rely on external systems for advanced analytics or bookkeeping.

The platform doesn’t natively integrate with TradingView or third-party trading bots; there are no built-in tax reporting or accounting tools, making it more suited to straightforward trading rather than advanced automation or reporting workflows.

Who Each One Is Best For

bitFlyer is ideal for traders who want a secure, regulated platform with a choice between streamlined and professional UIs, while those who prefer community-driven tools, extensive integrations, or a learning sandbox may find more options on other platforms.

Kuna shines for casual traders, especially in Eastern Europe, who want a no-frills, easy-to-navigate platform for basic spot trading in fiat and crypto—making it a solid fit for those seeking simplicity and regional accessibility rather than advanced trading features.