Korea transit card vs K
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Korea transit card
Easily manage your Korean transit card by checking balances, usage history, and recent transactions. It also provides real-time currency exchange rates for immediate cost calculation during your trip.
- Check transit card balance
- View transit usage details
- See recent transaction history
- Real-time currency exchange rates
- Access Korea travel information
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BucaCheck is an essential app for traveling to Korea. You can check the balance, transit usage details and recent usage details of Korean transit card. And also you can check it immediately with your currency. Official link to Korea travel information provided [Please check the app before downloading it.] - Only NFC-enabled devices can be used. - Available in iOS 14 and above. - The service may not be available depending on some type of transit card. - The usage details stored on the card vary by card. [ Main Function ] - Check balance - Check recent usage details - Check transit usage details - Real-time calculation of world major exchange rates [ How to Use ] - Hold your transit card on the NFC area. - Don't take the card off your phone until scan it completely. - After the card is scanned, check the balance and card information.
K
Apply for your Korea Electronic Travel Authorization (K-ETA) easily and conveniently. This official government app is required for visa-free foreign visitors entering Korea, allowing you to submit necessary travel information before boarding.
- Apply for K-ETA
- Submit travel information
- Official government app
- Required for visa-free entry
- Convenient application process
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This mobile app is the official Republic of Korea government app and you can use it to apply for the K-ETA. K-ETA is an electronic travel authorization that visa-free foreign visitors need to obtain before entering Korea, by submitting relevant information such as their travel information. Use this app to apply for your K-ETA easily and conveniently. - K-ETA is required for nationals of 66 visa-waiver countries and 46 designated visa-free countries - You need to apply at least 24 hours before you board your flight or ship - Official Website: www.k-eta.go.kr
Screenshots
Verdict
The clearest difference is review sentiment: Korea transit card at 53% against K's 8%. Korea transit card also leads on rating (4.8 vs 1.5) and update cadence (every 3 weeks vs every 17 months). K's advantage is in-app purchases (none vs 1). On price, ratings volume, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Korea transit card sells 1 one-off in-app purchase. K asks for nothing beyond the download.
Korea transit card holds the better App Store score, 4.8 against 1.5. Both are backed by a comparable volume of ratings — 404 and 142 respectively. Written reviews point the same way: 53% of Korea transit card's written reviews are positive against 8% of K's.
Korea transit card ships an update every 3 weeks, K every 17 months. The most recent releases landed on September 24, 2026 and August 25, 2026 respectively.
| Parameter | Korea transit card | K |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (404 ratings) — better | 1.5 (142 ratings) |
| Positive reviews | 52.5% of reviews — better | 7.5% of reviews |
| Number of ratings | 404 — better | 142 |
| Update frequency | Every 3 weeks — better | Every 17 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 51 MB | 102 MB |
| Age rating | 4+ | 4+ |
| Developer | RYNYUL | 법무부 |
Customer experience
Korea transit card
K
Bugs and requests
Korea transit card
Not enough reviews yet to summarise bugs or requests.
K
Reported bugs
20 issues- App crashes when filling out information or clicking submit
- White blank screens that require app restart
- Payment button unresponsive or stuck
- Address field clears or resets unexpectedly
- Passport scanning reads fields incorrectly (especially Nationality)
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- Photo upload shows other users' photos instead of own
- Confirmation codes take extremely long to arrive
- Application data deleted after payment failure
- Sign up button doesn't respond to clicks
- Freezing when switching between fields or steps
- Inability to proceed past email validation
- Postal code lookup not working for foreigners
- Dropdown menus require multiple clicks to function
- Session timeout during active use
- Incompatibility with certain iOS devices
- Text input requires English keyboard to function
- Photo upload stuck in endless loop with no error messages
- Payment window doesn't appear at all
- App won't open or loads to blank screen
- Saved drafts don't load properly
Requested features
12 requests- Ability to select photos from library instead of taking new ones
- Clearer postal code format support for non-US countries
- Back button functionality during photo capture
- Save progress without losing all data on errors
- Better documentation and examples for Korean address format
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- Support for Apple Pay and other payment methods
- Offline functionality or better error recovery
- Multi-applicant support in single application
- Clearer error messages in user's language
- Print functionality that actually works
- Real native app instead of web wrapper
- Automatic photo resizing without manual intervention
In-app purchases
Korea transit card
- Remove Ads & Currency Converter$0.99
K
No in-app purchases
