ForkTeller: Seoul Subway Guide

Contains adsIn-app purchases
Content rating
Everyone
0+
Downloads
Content rating
Everyone
In-App Purchases
Learn more
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

Standing on a Seoul subway platform, staring at a sign full of station names, and not sure which side your train leaves from? Snap the sign. ForkTeller tells you which way to go: LEFT or RIGHT.

Seoul's subway is fast, clean and huge, but the platform signs assume you already know the line. ForkTeller reads the station names on the sign for you, works out where your train is heading, and answers in one big word. No more guessing, no more riding three stops the wrong way.

HOW IT WORKS
1. Pick where you want to go. Search in English or Korean.
2. Point your camera at the platform sign, or choose a photo you already took.
3. Forky, our chubby orange fork, reads every station on it and gives you the verdict: LEFT or RIGHT. It takes about a second.

KNOWS WHERE YOU ARE
ForkTeller uses your location to find the station you are standing in, so the answer fits the platform in front of you. Underground with no signal? Snap the station's name board instead and it figures it out.

YOUR WHOLE TRIP, MAPPED
See the full route on a hand-drawn subway map, with every stop and every transfer in order. Switching lines? Scan again at the transfer platform and Forky points the way.

NEXT TRAINS AND FAST-EXIT DOORS
Check when the next trains leave, and which car and door put you closest to the exit or the transfer at your stop, wherever the official data has it. Small thing, big time saver at rush hour.

PRIVATE BY DESIGN
Signs are read on your phone. Your photos are never uploaded, and your location never leaves your device. No account, no sign-up.

FREE TO USE, FAIR TO KEEP
• 3 free sign scans every day
• Need more? Watch one short ad for +1 scan
• Or get ForkTeller Lifetime once: unlimited scans and no ads. A one-time purchase, not a subscription
Searching, the route map, timetables and exit doors are always free. A scan that can't read the sign doesn't count.

SEOUL ONLY
ForkTeller covers Seoul subway Lines 1 to 9, all 378 stations. It does not work in other Korean cities (such as Busan) or in other countries. Station names are shown in English and Korean.

Made for visitors finding their way around Seoul, and for anyone who has ever stood on a platform wondering which side is theirs. Snap the sign, trust the fork, catch your train.

Station, timetable and exit data: Seoul Open Data Plaza and data.go.kr (KOGL Type 1).
Snap the Seoul subway platform sign and know which way to go: LEFT or RIGHT.
Updated on
Oct 12, 2026
Featured stories

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, App activity, and Device or other IDs
  • This app may collect these data types
    Location, Personal info and 4 others
  • Data is encrypted in transit
  • You can request that data be deleted
Content rating
Everyone
In-App Purchases
Learn more

App support

About the developer
JoCoding, Inc.
help@jocoding.net
1111B S Governors Ave Dover, DE 19904-6903 United States
+1 231-450-5622

More by JoCoding