Ston fi vs DeDust Which TON DEX Is Better for Token Swaps

02 September 2026

Two automated market makers dominate the TON ecosystem: Ston.fi and DeDust. Both let you swap tokens, provide liquidity, and connect via Tonkeeper or Wallet bot. But they handle the same job differently. This comparison covers fee structures, liquidity depth for major pairs, slippage behavior, and the error states you will encounter. The facts here are current as of August 31, 2026.

Fee Structures

Ston.fi charges a flat 0.4% fee on every swap. DeDust takes 0.3%. That one-tenth of a percent difference adds up on frequent trades. A 1,000 TON swap costs you 4 TON on Ston.fi and 3 TON on DeDust. Neither DEX has tiered fee discounts for volume. Both split the fee between liquidity providers and the protocol treasury. Ston.fi allocates 0.3% to LPs and 0.1% to the treasury. DeDust gives 0.25% to LPs and 0.05% to the treasury. The treasury cut on DeDust is half what Ston.fi takes. If you swap large amounts repeatedly, DeDust is cheaper by a measurable margin.

Liquidity depth for major pairs

Deep liquidity means less slippage on large orders. Ston.fi launched first and accumulated more total value locked across most pairs. For TON/USDT and TON/USDC, Ston.fi typically has two to three times the depth of DeDust. A 10,000 TON swap on Ston.fi might move the price 0.5%. The same swap on DeDust could move it 1.5%. For smaller swaps under 1,000 TON, the difference is negligible; both DEXes will execute those with minimal price impact. The gap matters only if you trade in size. DeDust has better depth on some niche pairs involving newer jetton projects, and those pairs sometimes do not exist on Ston.fi at all. Check both interfaces before committing to a route.

Slippage Behavior

Both DEXes default to a 0.5% slippage tolerance. You can adjust it. Ston.fi shows you the estimated price impact before you confirm, and it also displays the minimum amount you will receive after slippage. DeDust does the same but with a different visual layout. The warning thresholds differ. Ston.fi flags swaps with price impact above 1% with a yellow banner; above 5%, it blocks the transaction until you manually confirm. DeDust issues a red warning at 2% and blocks at 10%. That means you can push a trade through on DeDust that Ston.fi would not allow. Whether that is useful or dangerous depends on your risk tolerance. Both DEXes let you override the block by adjusting slippage higher. Neither protects you from yourself if you set slippage to 50%.

Connecting via Tonkeeper or Wallet Bot

Both DEXes support Tonkeeper and Wallet bot. The connection flow is identical. You click "Connect Wallet," choose your option, and approve the connection in the wallet. Tonkeeper opens its in-app browser. Wallet bot opens a WebView inside Telegram. Once connected, the experience is the same. No DEX offers a meaningful UX advantage here. Both remember your wallet for future sessions. Both require you to reconnect after a period of inactivity. Neither supports hardware wallets directly. You would need to connect a hardware wallet to Tonkeeper first, then use Tonkeeper to sign.

Error states unique to each DEX

Ston.fi has a specific error when the pool lacks balance for a token. The interface shows "Insufficient liquidity for this pair." The swap button greys out. You cannot proceed. DeDust handles this differently. It shows the pair as selectable but displays zero or near-zero liquidity. The swap button remains active. Clicking it produces a transaction that fails on chain, costing you the network fee. That is worse. Ston.fi prevents you from wasting gas. DeDust lets you try and fail.

Price impact warnings behave differently too. Ston.fi's hard block at 5% impact stops many users from executing trades that would front-run them. DeDust's higher threshold at 10% means you can push through trades that will eat most of your value. If you do not watch the screen, DeDust will let you make worse trades. The DEX with the higher block threshold places more responsibility on the user.

Both DEXes show a generic "Transaction failed" error when your wallet has insufficient TON for gas. Neither tells you how much gas you need. You have to guess or check your balance manually. That is a shared failure.

Which one should you use

For small swaps under 1,000 TON, DeDust wins on fees. You pay less and the liquidity difference is irrelevant. For large swaps over 10,000 TON, Ston.fi wins on execution quality. The deeper liquidity means less slippage, which more than offsets the higher fee. For everything in between, check both. The better route depends on the specific pair and current pool depth. No single DEX is always better. Compare the quoted output on both before you swap. That takes thirty seconds and can save you meaningful value.

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