SUN.io Review 2026

Item: SUN.io
Rating: 4.68
Author: Ivan Andriyenko

By: Ivan Andriyenko
Updated: November 07, 2026

Top Brokers Overview — United States

Coins -
Fees 5.95 /10
User Reviews 6 /10
Regulation 0.75 /10

4.7 /10

High risk

SUN.io User Reviews 6.0
Commissions and Fees 6.0
Regulation and Safety 0.8
Deposit and Withdrawal 2.5
Markets and Tradable Assets 1.5
Customer Support 5.2

How we tested SUN.io

Traders Union has analyzed financial markets for over 14 years, evaluating brokers based on 250+ transparent criteria, including security, regulation, and trading conditions. Our expert team of over 50 professionals regularly updates a Watch List of 500+ brokers to provide users with data-driven insights. While our research is based on objective data, we recommend that users perform independent due diligence and consult official regulatory sources before making any financial decisions.

Learn more about our methodology and editorial policies.

Pros & Cons

A decentralized exchange that operates without intermediaries.
Low transaction fees, thanks to the TRON blockchain.
There are opportunities for passive income through staking, farming, and liquidity pools.
A user-friendly trading platform interface and integration with TRON wallets.

Limited educational resources for beginner traders.
A restricted selection of tokens, as the platform focuses on the TRON ecosystem.

SUN.io is a decentralized token exchange and staking platform operating on the TRON blockchain. Launched in 2020, it was one of the earliest platforms on this blockchain. As a decentralized system, SUN.io is not regulated, and is governed by smart contracts and the community through SUN DAO. SunSwap V3, the platform's core offering, is an automated market maker (AMM) designed for efficient token swaps. The platform offers staking and farming options and enables clients to participate in liquidity pools and voting within SUN DAO to shape the ecosystem's development. The platform’s utility token is SUN.

TU Expert Verdict

SUN.io carries a higher degree of risk. My review and user feedback point to noticeable performance issues and limitations. It may be appropriate only for experienced traders who fully understand the risks and are prepared for potential instability.

SUN.io is a decentralized cryptocurrency exchange on the TRON blockchain, offering token swaps through SunSwap V3 on a proprietary web platform. It supports popular wallets including TronLink and WalletConnect, and provides staking, yield farming, liquidity pools, and SUN DAO governance for TRON ecosystem tokens.

However, a notable drawback is that SUN.io is not regulated by a government authority, and it lacks investor protection funds and two-factor authentication. Its token selection is restricted, spot fees are above the industry average, and fiat deposits and withdrawals are unavailable; customer support has no live chat or ticket system. SUN.io may suit experienced users focused on TRON and decentralized services, while users seeking regulatory safeguards, broader markets, or fiat funding may prefer another exchange.

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SUN.io User Reviews

Score:

6 /10

3 total

5-star

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4-star

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3-star

100%
2-star

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0%

I’ve been using SUN.io for a few months and I am pretty satisfied with it. The decentralized nature of the platform is a big plus for me, ensuring full autonomy and control over my funds. Trading fees are very low due to the TRON blockchain, making it much more cost-effective compared to other exchanges. The transaction speed is impressive, especially when swapping through SunSwap V3. The only drawback is the limited token selection, as most assets are tied to the TRON ecosystem. However, if you work with TRON, this is an excellent platform for trading and staking. Linking the TronLink wallet takes just a few minutes, and withdrawals are processed within 10 minutes.

I was drawn to SUN.io for its passive income opportunities, particularly through staking. I’ve staked some of my tokens and have been earning a stable return of about 6% annually. I also appreciate the fast cryptocurrency exchange on the platform as transactions take an average of 2–3 seconds. On the downside, the platform doesn’t support traditional mining, which might be important for some clients. Additionally, there aren’t many educational resources, which could make it harder for newcomers. Otherwise, it’s a great decentralized exchange with interesting features and an intuitive interface.

I like SUN.io for its simplicity and low fees. For beginners, it can be a convenient way to start working with cryptocurrencies, especially if they already have TRON tokens. Besides trading, you can participate in liquidity pools, which allows you to earn passive income. My only complaint is the lack of a mobile app. I often trade on the go, and accessing the platform via a browser on my phone isn’t always convenient. I hope the developers add this feature soon. But for desktop or laptop trading, the platform works smoothly without any glitches.

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SUN.io Commissions and Fees

Score:

6 /10

SUN.io received a 6/10 score for its trading fees. While SUN.io is not the cheapest crypto exchange, the fees remain reasonable and competitive within the market.

No deposit fee
No Withdrawal fee

Spot fee above industry average
P2P fee applied

What are SUN.io trading fees?

We analyzed SUN.io’s crypto fees and compared them to the top two competitors, both of which hold high average positions in our rankings. To establish a comprehensive benchmark, we also calculated the average fee score based on an evaluation of over 100 cryptocurrency exchanges.

SUN.io trading fees vs competitors

	SUN.io	Nexus Trade	CoinMetro	Industry average Based on the evaluation of over 100 leading crypto exchanges
Spot, maker fee (%) Maker fees are charged when liquidity is added to the order book. This occurs by placing a limit order below the current market price for buy orders, or above the market price for sell orders.	0.3	0.22	0.1	0.15
Spot, taker fee (%) Taker fees are charged when liquidity is removed from the order book. This typically happens when a trade is executed at the market price.	0.3	0.22	0.2	0.194

What are SUN.io deposit and withdrawal fees?

Deposit fee, % Important! Even if an exchange does not charge fees for deposits and withdrawals, there can also be fees from the payment system or cryptocurrency network used by the user. For example, the network fee for USDT TRC20 is typically around $1.	0
Withdrawal fee, %	0

Does SUN.io offer P2P trading?

No, SUN.io does not support P2P transactions. However, you can explore the best alternatives in our dedicated list of top P2P exchange platforms, offering a variety of secure options for peer-to-peer transactions.

Regulation and Safety

Score:

0.8 /10

SUN.io received a score of 0.8/10, indicating a low level of security and regulatory compliance. This suggests that the platform may lack essential protections, and users should exercise extreme caution.

No successful hacks history

Not government-regulated

We also compared SUN.io against the top two competitors with the highest scores in our overall ranking based on the most critical security indicators.

SUN.io Security Factors
	SUN.io	OKX	Coinbase
Tier-1 regulation	No	No	Yes
Government-regulated	No	Yes	Yes
Investor protection fund Provides compensation to users in case of financial loss due to unforeseen circumstances on the platform.	No	Yes	Yes
2FA	No	Yes	Yes
Facial recognition	No	Yes	No
Cold wallet storage The majority of user funds are held offline, reducing vulnerability to online attacks.	No	Yes	Yes
Successful hacker attacks We review publicly available information on past security breaches to assess the exchange's security track record.	No	No	Yes

Is SUN.io a regulated crypto exchange? Regulation is crucial for the security and legitimacy of a cryptocurrency exchange. We assess the exchange’s regulatory status and its impact on platform reliability.

SUN.io is not currently regulated by any government authority, which is still a common occurrence in the cryptocurrency industry. While this doesn't automatically mean SUN.io is unreliable, government-regulated exchanges are generally considered more reliable due to the added oversight and client protection they offer.

Is verification (KYC) mandatory at SUN.io?

KYC verification is not mandatory for opening an account and trading at SUN.io. However, unverified accounts have certain limitations, such as lower withdrawal limits and restricted access to certain features.

Is SUN.io available in the USA?

SUN.io is not available in the USA due to regulatory restrictions. In some cases, access might differ by state, so we recommend confirming details with the platform’s support or checking the official website for the latest updates.

You may also consider the top 3 exchanges that are available in the USA and rank highly based on our methodology: OKX, Coinbase, Crypto.com .

Deposit and Withdrawal

Score:

2.5 /10

SUN.io received a 2.5/10 rating for its deposit and withdrawal services. SUN.io offers limited funding options and may charge fees, which could be inconvenient for many users.

Many cryptocurrencies for deposits and withdrawals
No withdrawal fee
No deposit fees

No PayPal option
Bank transfers not available

Deposit and withdrawal options

SUN.io supports the following deposit and withdrawal options: Crypto.

SUN.io Deposit and withdrawal options vs competitors

	SUN.io	OKX	Coinbase
Bank transfers	No	No	Yes
Bank card	No	Yes	Yes
Crypto	Yes	Yes	Yes
PayPal	No	No	Yes

What is SUN.io minimum deposit?

The minimum deposit at SUN.io is 1 USD/USDT or 1 BTC. The minimum trade size is 1 USD/USDT, which also serves as the minimum amount required to start trading on the platform.

SUN.io minimum deposit vs competitors

	SUN.io	OKX	Coinbase
Minimum deposit, USD or USDT	1	10	10
Minimum deposit, BTC	1	5	1
Minimum trade amount, USD/USDT	1	1	2

Does SUN.io support fiat money?

SUN.io does not support fiat currencies; only cryptocurrencies are accepted.

Supported Coins & Markets

Score:

1.5 /10

SUN.io received a score of 1.5/10 in this category, indicating a modest offering of assets and markets. While SUN.io covers essential trading functions, the number of supported coins, fiat currencies, and investment tools may be insufficient for users seeking more comprehensive options.

Yield farming available
Staking available

NTFs not available
No tokenized stocks or real-world assets

SUN.io supported coins and markets vs competitors

We compared SUN.io with leading exchanges in terms of supported coins, NFT access, and derivatives like futures and options to help users assess the platform’s product range and trading flexibility.

	SUN.io	OKX	Coinbase
Supported coins	-	600+	400+
Futures/Perpetual contracts	No	Yes	Yes
Options	No	Yes	No
NFTs	No	Yes	Yes
Tokenized Assets Digital tokens representing real-world assets, such as stocks, bonds, commodities, or real estate.	No	Yes	Yes
TradFi Perps Perpetual futures contracts linked to traditional financial assets, such as stocks, indices, or commodities.	No	Yes	Yes
Prediction Markets Markets where users trade contracts based on the outcomes of future events.	No	No	No
Other Assets	No	No	Pre-IPO

SUN.io passive income options vs competitors

We also compared SUN.io with top competitors in terms of passive income opportunities such as staking, farming, and copy trading, to help users evaluate the platform’s earning potential beyond regular trading.

	SUN.io	OKX	Coinbase
Staking	Yes	Yes	Yes
Yield farming	Yes	Yes	Yes
Copy trading	No	Yes	No

Customer Support

Score:

5.2 /10

SUN.io offers a moderate level of customer support, covering basic communication channels and assistance options.

In TU testing, the exchange showed mixed results in support accessibility and responsiveness. Certain limitations in contact options, availability, or support resources may make it less convenient for users requiring immediate assistance.