Do I really need LINE to live in Thailand?In practice, yes. LINE is the default messaging app for the whole country, the way WhatsApp is in much of Europe or iMessage among US iPhone users — except in Thailand the dominance is near-total and crosses every part of daily life. Your landlord will send the lease and ask for rent confirmations on LINE. The condo juristic office posts water shut-offs and parcel notices to a LINE group. Your bank, your favourite restaurant, the aircon repair guy and the woman who does your laundry all expect a LINE ID, not a phone call or an email. You can technically survive without it, but you will be cut out of the channel everyone else uses, and you will spend your first months explaining why you don't have it. Installing LINE on day one removes more friction than almost anything else you can do.
LINE vs WhatsApp — which should I use in Thailand?Use LINE for anyone Thai or Thailand-based, and keep WhatsApp for family and contacts back home. WhatsApp barely registers among Thai users; sending a Thai landlord or shop a WhatsApp message often gets no reply simply because they don't check it. The two apps do similar things — text, voice notes, calls, photo and file sharing, groups — so there's no feature you lose by switching. The difference is purely network: in Thailand the network is on LINE. Most expats end up running both, with LINE as the everyday app and WhatsApp reserved for overseas. Don't try to fight it; the people you need to reach are already on LINE.
What is a LINE Official Account and why do businesses use them?A LINE Official Account (OA) is a business version of a LINE profile that companies, government bodies, banks, malls and even hospitals use to talk to customers and push updates. You 'add' an OA the way you'd follow a page, and it can send you appointment reminders, promotions, e-receipts, queue numbers and support chat. Many Thai businesses run their entire customer service through an OA instead of a website or call centre — you book, ask questions and get help all inside the chat. The trade-off is marketing messages, which you can mute or unfollow. For day-to-day life, OAs are how you'll interact with your bank's alerts, a clinic's booking desk, and a lot of food and retail loyalty programs.
Is LINE Pay worth setting up?It depends on how your money is already set up. LINE Pay lets you send money and pay merchants from inside the app, and it's convenient if your contacts use it. But for most foreigners the bigger workhorse is PromptPay, Thailand's national instant-transfer system that's built into the regular banking apps and is accepted almost everywhere via QR code. Many people find PromptPay through their Thai bank covers nearly all the peer-to-peer and merchant payments they need, with LINE Pay as a secondary option. If you don't yet have a Thai bank account, neither will be fully available to you at first. Set up your bank and PromptPay early, then add LINE Pay later if your circle actually uses it — see our payments guide for the full picture.
What's the etiquette around LINE stickers and messaging?Stickers are not a gimmick in Thailand — they're a genuine part of how people communicate, used to soften messages, say thanks, apologise, or close a conversation politely. A sticker reply to your landlord or a colleague is normal and friendly, not unprofessional, and sending a cute or seasonal sticker is a common warm gesture. Beyond stickers: replies can be slower and more indirect than Westerners expect, voice messages are popular, and it's polite to open with a greeting rather than diving straight into a demand. Keep tone gentle — Thai communication prizes politeness and saving face, so a blunt one-line message can read as cold even when you didn't mean it that way.
How do landlords and condos actually use LINE?Heavily, and it's worth knowing before you sign a lease. Most individual landlords and many condo juristic (management) offices run everything through LINE: lease documents, rent reminders, photos of a repair, scheduling a technician, and building-wide announcements in a residents' group chat. When something breaks, you'll typically send a photo and a description to a LINE chat and arrange the fix from there. This is convenient but informal — so keep your own record of anything that matters (rent paid, agreed repairs, deposit conditions) rather than relying solely on a chat thread that can be deleted. A landlord who communicates clearly on LINE is often a good sign; one who goes silent there is a red flag worth noting before you commit.
How do I set up LINE and protect my account?Download LINE from the App Store or Google Play, register with your phone number (a Thai SIM works well, but you can register with a home-country number too), and verify by SMS code. Add a display name and photo, then start adding contacts by phone number, QR code (the fastest way in person — each person shows a QR for the other to scan), or LINE ID. To protect the account, set a passcode and an email address so you can recover it, turn off 'allow add by ID' if you don't want strangers finding you, and be cautious with the QR codes and links strangers send — LINE is also a channel for scams. Back up your chat history if it matters to you, because moving LINE to a new phone without a backup can lose your message history.