04 · Money
Fees
Zero. This page is mostly about the costs that are not ours.
Zero. Not low, not competitive. Zero.
Crumble takes nothing out of your swap and nothing out of your change. There is no percentage, no spread, no minimum, no subscription and no premium tier. The whole crumb buys stock.
| Line | Amount |
|---|---|
| Your swap | $7.42, untouched |
| Rounded up to | $8.00 |
| Change | $0.58 |
| Crumble's cut | $0.00 |
| Buys stock | $0.58 |
This is not a launch promotion with a quiet end date. There is no fee instruction in the transaction at all: open any round-up on Solscan and there is nothing in it paying us, because there is nothing to pay.
Why, in plain arithmetic
Crumble used to plan on 1% of the change. Run that against the usage this site's own calculator assumes, six swaps a week at forty dollars, and it comes to about $1.56 per user per year. A thousand committed users would have produced fifteen hundred dollars.
That is not a business. It is, however, the single thing anybody would have pointed at. So it is gone, and what is left is a sentence very few products can write: you pay us nothing.
What you do pay, and who gets it
Solana charges for its own work, and we never sponsored that. These go to the network, not to Crumble.
| Cost | Roughly | Who gets it |
|---|---|---|
| Network fee | 0.000005 SOL per signature | Validators. A fraction of a cent. |
| Priority fee | Varies with congestion | Validators. Small, and only when the network is busy. |
| Token account rent | About 0.0015 SOL | Nobody. It is a deposit, and it is yours. |
| Pool fee | Set by each pool | The liquidity providers you traded against. |
The rent deserves its own sentence. Each token you hold needs a small account, and Solana requires a deposit to keep it alive. You pay it the first time a crumb buys a stock you have never held, and you get it back if you ever close the account. It is not a fee, but it does leave your wallet, and on the first crumb into a given stock it is larger than the crumb itself.
The honest consequence. Round up once out of curiosity and the deposit costs you more than the stock you bought. Round up every week for a year and it disappears into the noise. This product pays off by repetition, which is rather the idea behind rounding up in the first place.
Then how does any of this exist?
Because the app is not the business. $CRUMBLE is. The token's own side of the project funds the buy-backs described in The Oven, and none of that money comes from the people using the app.
It is a cleaner arrangement than a fee, and it is worth being blunt about why: a fee would have set us against our own users at every round-up. This way the only thing we want from you is that you keep using it.
What we never charge
- Nothing to use it. No fee on the swap, the change, or anything in between.
- Nothing to deposit. There is no deposit. The stock goes to your wallet.
- Nothing to withdraw. There is no withdrawal either.
- Nothing on your balance. No management fee, no annual percentage, no charge for sitting still.
- No spread. Legs execute at the pool price Jupiter found, and what arrives is what you get.