9 Apps to Download Before You Visit Thailand
Download a ride app, offline maps, an offline translator and your airline app before you fly to Thailand, and sort a travel eSIM so data works on landing. Do it on home Wi-Fi, then add your ferry tickets and a payment backup.
Updated 27 October 2026
This list is for first-time and returning visitors to Thailand who want to land with rides, maps, translation and payments already working. Do the arrival paperwork first, then set up the apps on home Wi-Fi, where downloads are quick and cheap.
1. Thailand Digital Arrival Card
Thailand has moved its arrival paperwork online, and sorting it before you fly saves you fumbling with forms at the airport. Rules and timing can change, so only the official source is reliable.
How: Search for the official Thailand immigration digital arrival card page, check the current submission window, and fill it in with your passport and flight details. Screenshot the confirmation.
Tip: Only use the official government site, as copycat sites exist.
2. Your airline app
Flight times and gate changes show up here first, and many airlines let you check in and keep your boarding pass in the app. That matters on a long-haul trip with a connection.
How: Download your airline's app, sign in with your booking reference and turn on notifications. Add the boarding pass to Apple Wallet or Google Wallet once check-in opens.
Tip: Log in at home so any verification code goes to your normal number.
3. A travel eSIM
Maps, ride apps and translation all need data the moment you land. Roaming from home can be costly and slow to sort out at the airport.
How: Fresim creator stores sell travel eSIMs, delivered by email with one-tap install buttons: Install on iPhone (iOS 17.4+) or Install on Android (Android 10+). Buy before you fly, tap the button, and switch the eSIM on after landing.
Tip: A QR code is also included, handy if you want to install from another screen.
4. Google Maps offline area
Bangkok's tangle of streets and island roads with patchy signal are much easier with a saved map. Offline maps still show your position and saved places.
How: In Google Maps, tap your profile picture, choose Offline maps, then Select your own map and drag over each area you will visit. Star your hotel and key stops so they show up quickly.
Tip: Save a separate offline area for each island or city on your route.
5. Google Translate with Thai
Menus, street signs and taxi conversations are often in Thai script, which is hard to sound out. Camera translation turns a sign or menu into readable text.
How: Install Google Translate, open the language picker and download Thai for offline use. Try the camera and conversation modes once at home so they feel familiar.
Tip: Save your hotel name and address in Thai so you can show it to a driver.
6. Grab for rides and food
Grab is a widely used ride-hailing app in Thailand. It shows the route and fare before you commit, so you avoid haggling.
How: Install Grab, create your account and verify your phone number before you leave. Add a payment card and set your pickup point carefully before booking.
Tip: Rides in busy areas can be affected by traffic, so allow extra time for flights.
7. Ferry tickets saved offline
Island hops depend on a booking that the pier staff can check, and phone signal on the water or at small piers can drop out. A saved copy avoids a stressful scramble.
How: Book through the ferry operator or a reputable booking site, then screenshot the ticket and save the PDF to your Files app or Google Drive offline. Note the pier name and check-in time.
Tip: Weather can change sailings, so check the operator's notice the day before.
8. Bank app and phone wallet
Cards are widely accepted in cities and malls, but small vendors often want cash. A working banking app lets you lock a lost card or fix a blocked payment fast.
How: Tell your bank your travel dates, make sure you can log in to the app, and add your card to Apple Pay or Google Wallet. Check your bank's foreign ATM fees before you go.
Tip: Carry a backup card stored separately from your main one.
9. Offline copies of key documents
Passport details, insurance, hotel bookings and your arrival card confirmation come up at check-in, borders and hire desks. If your phone has no signal or your bag goes missing, you can still show them.
How: Put photos or PDFs of each in a folder in the Files app or Google Drive, marked available offline. Email yourself a copy too.
Tip: Turn on Find My on iPhone or Find Hub on Android before you leave.
Staying connected
The easiest way to have data on landing is a travel eSIM bought before you fly. Fresim creator stores deliver it by email with one-tap buttons, Install on iPhone (iOS 17.4+) and Install on Android (Android 10+), so you can install it at home. The QR code in the same email is a second option for sharing the eSIM or installing from another screen. Prices vary by destination and are set by each store.
Checklist
- Submit the arrival card
- Install your travel eSIM
- Save offline maps
- Download Thai offline
- Set up Grab and payments
- Save tickets and documents
Planning the trip? eSIM for Thailand: Complete Travel Data Guide [2026]
Frequently asked questions
What apps do I need for Thailand?
The most useful are offline maps, a translation app with Thai downloaded, a ride-hailing app such as Grab, your airline app and your banking app. Add a travel eSIM so they all work when you land.
Can I use Google Maps offline in Thailand?
Yes. Download an offline area in Google Maps while you are on Wi-Fi, and you can still see the map and your position without data. Some live features, like traffic, need a connection.
Does Grab work in Thailand?
Yes, Grab is widely used for rides and food in Thailand. Set up your account and payment method before you travel so you can book as soon as you have data.
How do I get mobile data in Thailand?
A travel eSIM is a simple option because you can buy and install it before you fly. Fresim creator stores deliver it by email with an Install on iPhone (iOS 17.4+) or Install on Android (Android 10+) button, and plans vary by store.
Should I download the Thai language for offline translation?
Yes. Downloading Thai in Google Translate lets basic text translation work without signal. Camera translation and conversation mode can need extra downloads or a connection, so test them at home.
More travel lists
Run a travel channel? Sell eSIMs under your own brand.
Sources
- Thai immigration authorities — Thailand Digital Arrival Card information
- Google Maps Help — Download areas and use offline maps
- Google Translate Help — Translate text offline
- Apple Support — Add a cellular plan with an eSIM on iPhone