Comparison

One Subway vs Seoul Subway Map

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

One Subway

Access real-time subway information, including timetables and live train locations across major Korean cities. Plan your fastest routes, view station details, and find nearby bike rentals.

Highlights
  • Subway map images for major Korean cities
  • Subway timetables
  • Route navigation with fastest path
  • Real-time subway location tracking
  • Station exit and facility information
  • Ttareungi bicycle info near Seoul stations
Features
Read full description

Provides information such as subway timetables and real-time subway locations. β–  All subway map images in Korea We provide images so you can see the subways in the metropolitan area (Seoul), Busan, Daegu, Daejeon, and Gwangju at a glance. β–  Subway timetable You can easily view the subway station's timetable. β–  Route navigation If you specify the departure station, transit station, and arrival station, the fastest route will be found. β–  Real-time subway location and arrival information You can check the locations of all subways on the selected subway line. You can also find out which subway will arrive at your station soon. β–  Detailed information of subway stations It provides information such as subway station exit information, platform location, and restroom location. β–  Ttareungi bicycle information around subway stations You can easily check information on Ttareungi bicycles around Seoul subway stations.

About

Seoul Subway Map

Features
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The entire Seoul metropolitan subway - Seoul, Incheon and Gyeonggi - in two drawings: a clean diagram, and a map drawn to real geography. [ Two maps, not one ] A diagram with the lines straightened, so all 657 station names stay clear of each other, with the Han River and the sea drawn in and KTX and ITX stations marked. And a map that puts every station where it actually is, so you can see which direction you are heading and how far it really is. The app opens on the diagram; switch whenever you like. [ Live arrivals ] See where the train is right now: how many minutes until it reaches you and how many stops away it is, updated continuously. No need to look up at the board on the platform. [ Real timetables ] Not averages, not estimates. Departure times come from the official published timetables, so you see the actual train at the actual minute. [ Fast routes ] Enter where you are and where you are going. You get the fastest route, the departure time, the arrival time and the total journey time. Express trains are marked separately. [ Works underground ] The map, the stations and the timetables live on your phone. No signal, no problem. [ 17 languages ] Korean, English, Chinese, Japanese, Vietnamese, Thai, Russian, Indonesian, Uzbek, Mongolian, Nepali, Khmer, Burmese, Bengali, Sinhala, Kazakh and Tagalog. Station names can be shown in Korean or English.

Screenshots

One Subway4 screens
Seoul Subway Map4 screens

Verdict

The call

The clearest difference is update cadence: Seoul Subway Map at every 5 days against One Subway's every 3 weeks. One Subway's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

One Subway ships an update every 3 weeks, Seoul Subway Map every 5 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard2 real differences Β· 6 level
One Subway versus Seoul Subway Map: the parameters behind the verdict, then further details
ParameterOne SubwaySeoul Subway Map
PriceFreeFree
Positive reviews80.0% of reviewsβ€”
Update frequencyEvery 3 weeksEvery 5 days β€” better
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supportedβ€”
DevicesiPhone, iPad, iPod β€” betteriPhone
Requires iOS15.6 β€” better16.4
Further details β€” not scored
Size220 MB48 MB
Age rating4+4+
DeveloperJeongwook LeeSY KHANH HO

In-app purchases

None

One Subway

No in-app purchases

None

Seoul Subway Map

No in-app purchases

Questions

Is One Subway free?
One Subway is free to download, with no in-app purchases.
Is Seoul Subway Map free?
Seoul Subway Map is free to download, with no in-app purchases.
Do One Subway or Seoul Subway Map have ads?
Both One Subway and Seoul Subway Map show ads.
Which is updated more often, One Subway or Seoul Subway Map?
One Subway ships an update every 3 weeks, and Seoul Subway Map every 5 days. Most recently, One Subway was updated on November 3, 2026 and Seoul Subway Map on October 31, 2026.

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