> ## Documentation Index
> Fetch the complete documentation index at: https://docs.itsgrand.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Trade with Dopamine Mode on Grand

> Set a per-swipe spending limit, browse a stack of prediction cards, and buy instantly by swiping right — all within the limit you approved.

Dopamine Mode is Grand's signature trading experience: a swipe-driven feed of prediction cards designed for rapid discovery and one-tap buying. You approve a spending limit once using your passkey, and from that point on every right swipe executes a trade — instantly, and always within your pre-approved amount. You stay in control throughout.

## Phase A: Set your spending limit

Before any trades can happen, you set the maximum amount Grand is allowed to spend per swipe.

<Steps>
  <Step title="Open Dopamine Mode">
    Tap the **Dopamine Mode** tab from the bottom navigation bar.
  </Step>

  <Step title="Enter your per-swipe limit">
    Set the dollar amount you want to spend each time you swipe right (for example, **\$10 per right swipe**).
  </Step>

  <Step title="Approve with your passkey">
    Confirm the limit with your passkey. This authorization allows Grand to execute trades up to that amount on your behalf — no further approval is needed per trade.
  </Step>
</Steps>

<Note>
  No transaction can exceed the limit you set. You can update or revoke this limit at any time.
</Note>

## Phase B: Swipe through prediction cards

Once your limit is active, you'll see a stack of token cards. Each card shows:

* **Event name and market name**
* **Category tag** (e.g., Trending, Politics, Finance)
* **Outcomes and percentages**
* **Pay x to win y**
* **Flip button to see the outcomes**
* **Volume and end date infos**

<Note>
  In the background, our engine runs the Fractional Kelly Criterion. It compares the current market price against the actual price momentum. If the algorithm calculates that the crowd is wrong and the odds are mathematically in your favor (an "Edge" greater than 2%), it slaps an \[ALPHA DETECTED] badge right on the card.
</Note>

Swipe to act:

| Swipe     | Action                                                    |
| --------- | --------------------------------------------------------- |
| **Right** | Buy the prediction card at your pre-set amount, instantly |
| **Left**  | Skip and move to the next prediction card                 |

<Tip>
  Check your newly purchased assets in the **Portfolio** tab, and review the full trade history in the **Activity** tab.
</Tip>

## Phase C: Disable Dopamine Mode

To turn off Dopamine Mode or reset your spending limit:

<Steps>
  <Step title="Open settings inside Dopamine Mode">
    Tap the **Settings icon** in the top-right corner of the Dopamine Mode screen.
  </Step>

  <Step title="Set your limit to zero">
    Change the spending limit amount to **0**.
  </Step>

  <Step title="Tap Disable Dopamine">
    A **Disable Dopamine** button will appear. Tap it to confirm you want to turn off the mode.
  </Step>

  <Step title="Approve with your passkey">
    Authorize the change with your passkey to complete the process.
  </Step>
</Steps>

## Your control and safety

<CardGroup cols={2}>
  <Card title="Limit-bound trades" icon="shield-check">
    Every trade is executed based on your swipe and capped at the limit you approved. Nothing can exceed it.
  </Card>

  <Card title="Full visibility" icon="eye">
    Every trade appears in your Activity history. Nothing happens invisibly.
  </Card>

  <Card title="Change anytime" icon="sliders">
    Update or revoke your spending limit at any time from the Dopamine Mode settings.
  </Card>

  <Card title="No surprise charges" icon="circle-xmark">
    Grand executes trades only when you swipe right — skipping a card never triggers a purchase.
  </Card>
</CardGroup>