Small apps, made with care
🗼 Tokyo is 37° below your feet.
Every city on Earth is somewhere under you — you just have to look down. Donde, our iPhone app, points you there. Spin the globe and pick a city to dig a tunnel.
San Francisco → Tokyo
- Tunnel through Earth
- —
- Deepest point
- —
- Over the top
- —
- Point your phone
- —
Jump in and you'd fall out the other side in 42 minutes — a plane takes —. (Gravity is funny: every straight tunnel takes the same 42 minutes.)
Your starting point is approximate, from your internet connection, and is never stored.
Donde iPhone
The globe above runs the same math as Donde. On your iPhone, pick any city and move your phone until the crosshair locks on, straight through the planet or along the horizon. You'll feel a tap when you're aimed right at it.