Lacha App vs Koin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lacha App
This app simplifies travel within Korea by consolidating various transportation options like KTX, buses, and taxis into a single platform. It's designed for international users, offering easy payment with foreign credit cards and no Korean bank account needed.
- All-in-one transportation booking
- KTX, express bus, airport railway, taxi
- Designed for international users
- No Korean bank account required
- International credit card payments
- Simple payment options
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Travel across Korea with ease — from long-distance trips to airport transfers and taxis — all in one app, LACHA. LACHA is an all-in-one transportation platform built for foreigners, international travelers, and overseas workers in Korea. Plan and use Korea’s major transportation services, including KTX, express buses, airport railways, and taxis, conveniently in a single app. ■ Built for international users No Korean bank account is required. Pay instantly with international credit cards or simple payment options. ■ Perfect for travel and long-term stays Whether you’re visiting Korea or living here long-term, LACHA makes getting around the country easier and more convenient.
Koin
This app helps international students, travelers, and newcomers navigate life in Korea. It offers curated local information, community forums for connection, and AI tools for understanding everyday objects like signs and food.
- Curated local information
- Community forums
- AI-powered camera translation
- Discover culture, food, and places
- Connect with others in Korea
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Koin is an all-in-one app for international students, exchange students, travelers, and newcomers in Korea. It helps users explore life in Korea more easily through curated local information, community-based communication, and AI-powered tools. Key features: [Kuration] Discover useful content about Korea in a simple and engaging format. Learn about culture, food, places to visit, and daily life. [Kommunity] Connect with people from around the world who are living in or visiting Korea. Ask questions, share experiences, and exchange helpful information. [Kamera] Use AI-powered camera features to better understand food, signs, documents, and everyday objects in Korea. Why Koin? - Practical information for life in Korea - Curated content for international users - Community-based support - AI tools for everyday convenience Whether you are here to study, travel, or start a new life, Koin helps you feel more informed, connected, and confident in Korea.
Screenshots
Verdict
The clearest difference is rating: Koin at 5.0 against Lacha App's 4.2. Koin also leads on ads (none vs shown) and monetization model (free vs ad-supported). Lacha App's advantage is ratings volume (11 vs 1) and iOS requirement (15.0 vs 18.6). On price, update cadence, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Koin holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Lacha App has 11 ratings behind it against 1, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 21, 2026 and October 20, 2026 respectively.
| Parameter | Lacha App | Koin |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (11 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 91.3% of reviews | — |
| Number of ratings | 11 — better | 1 |
| Update frequency | Every 4 days | Every 4 days |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 137 MB | 114 MB |
| Age rating | 4+ | 12+ |
| Developer | 라쿠카라차 | Seong-hyeok Yang |
Customer experience
Lacha App
Koin
In-app purchases
Lacha App
No in-app purchases
Koin
No in-app purchases
