Question 1

When does the daily flight change?

Accepted Answer

At midnight in New York (America/New_York), including daylight-saving time.

Question 2

Do I need an account?

Accepted Answer

No. You can play daily and practice flights as a guest. An account keeps your streak across devices and unlocks duels, friends and groups.

Question 3

What happens if I refresh or close the page?

Accepted Answer

Progress is stored on the server. Reopen the page to continue. The round clock keeps running while you are away.

Question 4

Can I replay today's flight?

Accepted Answer

No. One daily flight per account per day counts. Use Practice or the Archive to play more.

Question 5

How do duels find an opponent?

Accepted Answer

Public matching pairs you with another real player who is searching at the same time. There are no bots. You can also send a private invite link.

Question 6

How is the duel winner decided?

Accepted Answer

Both players get the same seven rounds on a shared clock. The higher final altitude wins; equal altitude is a draw.

Question 7

Where do the numbers come from?

Accepted Answer

Country figures come from the World Bank (2023 values), planetary figures from NASA's Planetary Fact Sheet and element figures from PubChem. Each reveal shows its source.

Question 8

I forgot my password.

Accepted Answer

Use the recovery code shown when you created the account. Without it, the account cannot be recovered, because we do not collect email addresses.

Question 9

What should I enter for each question?

Accepted Answer

For a name question, enter a country, region or chemical element that fits the prompt. For a number question, enter your estimate. Number shortcuts such as 1.2k, 3.5m and 2b are supported.

Question 10

I found a wrong number.

Accepted Answer

Please tell us on the feedback page and include the round text. We fix data in a new data version.

Frequently asked questions