Geography at full speed.

The map game with a clock that never stops.

A place appears. Tap where it is on the world map, as fast and as accurately as you can. Ten questions per game, 10,000 points possible. Getting close takes real knowledge of the world.

Download on the App Store Free for iPhone. No ads, ever.
Corto home screen with the globe, your collection, and the Play button

How it works

A place appears

A city, a volcano, a stadium, a flag. Each pack asks the world in its own way.

Tap the map

One tap on the world map. You have 10 seconds. The clock is already running.

Score the tap

Up to 1,000 points per question. 800 for accuracy, 200 for speed. Accuracy is judged against the map you're on, so smaller maps demand sharper aim.

See it in motion

The pack collection with illustrated pack tiles
Your collection, every pack an illustrated tile
Scoring rules: 800 points accuracy, 200 points speed
Simple rules, unforgiving clock
Stats screen with best games, ranks, and World Rankings
Ranks, records, and World Rankings

Climb the ladder

Every game earns a rank, per pack. Beat the thresholds, conquer the pack, and collect the crown. 120+ packs means 120+ ladders to climb.

Each pack has its own themed rank titles. Score big on Film Locations and you're a Location Scout, chasing Director's Master.

Ranks

🚩NoviceEvery completed game earns a rank.Any score
⭐SkilledA solid game.7,000+
🏆ExpertA strong game.8,500+
👑ConqueredThe top of the ladder.

On your Home Screen

Corto Home Screen widget showing a best game of 9,750 out of 10,000 on Netherlands Provinces

The Best Game widget keeps your record where you can't ignore it, with your top five packs underneath. Works on the Lock Screen too.

A second widget tracks your running multiplayer matches, so you always know whose move it is.

Why it sticks

10s

Per question. Long enough to think, short enough to hurt. Every round is under two minutes.

120+

Themed packs. Capitals and cities, flags and airport codes, volcanoes, wine regions, WWII battlegrounds.

1v1

Head-to-head multiplayer. Challenge a friend, trade turns, settle it on the map.

353

Questions in World Cities alone, and it ships free. No ads, no subscriptions, no accounts.

Start free, go deep

The download is free and stays free, with World Cities and 10 learning packs included: no ads, no subscriptions, no accounts. When you want more, 120+ premium packs are waiting, each a one-time unlock you keep forever. Browse the packs.

Learn the world without noticing

Corto is a game first. But every wrong tap shows you the right answer, and every replay closes the gap. Players come for the clock and leave knowing where Ouagadougou is.