LOCK IN TWIN Get the app ↗

Make it worth winning.

A weekly goal, one friend, and stakes you both agree to. Loser lets the winner pick their outfit for a day? Now it’s interesting.

Download on the App Store Free for iPhone. Bring your friend.
Lock In Twin’s home screen. Jordan and Alex are tied 0 to 0 on Gym, three times this week, with “Loser runs a mile.” on the line.
Illustrative app screens

How it works

One goal. Two people. A card on the line.

  1. 1

    Lock in a weekly goal with a friend.

    Pick a fitness goal or reading and agree on the same weekly target. You can have up to three separate challenges, each with one friend.

  2. 2

    Choose what the loser has to do.

    Pick four possible punishments, or pick three and write your own. Your friend reviews all four and accepts. One gets drawn for the week.

  3. 3

    Check in with a photo.

    Take it in the app. Your friend has 12 hours to review it, and if they don’t respond, it confirms automatically.

  4. 4

    The loser does this week’s punishment.

    Miss your weekly target while your friend meets it, and you do that week’s punishment. If you both meet it, or both miss it, there’s no punishment that week.

The stakes

Pick the cards. Draw the punishment.

Flip through the deck and keep four. Your first card is drawn when the challenge starts, so you both know what’s at stake before anyone checks in. After that, your friend gets the next turn to pick the deck.

  • Loser buys the winner coffee before the week is out. Winner picks the place ☕
  • Loser lets the winner pick their outfit for one day. Photo required.
  • Loser wears sunglasses in every check-in photo next week.
The card picker: zero of four cards picked, with “Loser announces their loss to the next person who asks how they’re doing.” on top of the deck, and Next card and Keep card buttons.

Illustrative app screen

Free, always.

Starting challenges, writing cards, checking in, reviewing proof and keeping your history are free. No ads. No subscription.

Optional re-roll credits let you redraw an upcoming card before its week starts. Buying credits can’t erase a loss or a debt.

Download on the App Store