Skip to main content
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.
1

Open Dopamine Mode

Tap the Dopamine Mode tab from the bottom navigation bar.
2

Enter your per-swipe limit

Set the dollar amount you want to spend each time you swipe right (for example, $10 per right swipe).
3

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

​
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
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.
Swipe to act:
Check your newly purchased assets in the Portfolio tab, and review the full trade history in the Activity tab.

​
Phase C: Disable Dopamine Mode

To turn off Dopamine Mode or reset your spending limit:
1

Open settings inside Dopamine Mode

Tap the Settings icon in the top-right corner of the Dopamine Mode screen.
2

Set your limit to zero

Change the spending limit amount to 0.
3

Tap Disable Dopamine

A Disable Dopamine button will appear. Tap it to confirm you want to turn off the mode.
4

Approve with your passkey

Authorize the change with your passkey to complete the process.

​
Your control and safety

Limit-bound trades

Every trade is executed based on your swipe and capped at the limit you approved. Nothing can exceed it.

Full visibility

Every trade appears in your Activity history. Nothing happens invisibly.

Change anytime

Update or revoke your spending limit at any time from the Dopamine Mode settings.

No surprise charges

Grand executes trades only when you swipe right — skipping a card never triggers a purchase.