Vietnam's app situation is simpler than most pre-trip checklists suggest. One app genuinely matters — Grab — and after that you need offline maps, offline translation and a way to be contacted. Everything else is optional, and several apps travellers are told to install are unusable without a Vietnamese bank account or phone number.
This page sorts them into what to install before you fly, what to add on the ground and what to ignore, with an honest note on which ones fail on a foreign SIM and a foreign card.
The short version
- Install before you fly: Grab, Google Maps with the Vietnam region downloaded, Google Translate with the offline Vietnamese pack, and whichever eSIM app your data plan needs.
- Add on the ground: Be and Xanh SM as price alternatives, Klook for tours, Vexere for trains and buses.
- Do not bother: MoMo and ZaloPay on a short trip, Zalo unless someone asks, and any app claiming to issue a Vietnam visa.
What to install, and when
| App | What it does | Foreign phone number | Install |
|---|---|---|---|
| Grab | Rides, taxis, food, parcel delivery, in-app card payment | Yes | Before you fly |
| Be | Bikes, cars, taxis, delivery, plus bus, train and flight tickets | Yes | On arrival |
| Xanh SM | All-electric taxi and bike fleet, steadier surge pricing | Yes | On arrival |
| Google Maps | Navigation, offline region download | Not required | Before you fly |
| Google Translate | Text, voice and camera translation, offline pack | Not required | Before you fly |
| Klook | Tours, attraction tickets, airport transfers | Yes | Before you fly |
| Vexere | Train and bus tickets, foreign cards accepted | Yes | Before you fly |
| Vietnam Railways (dsvn.vn) | Official rail booking, partly translated | Yes | Skip for most |
| MoMo | Local wallet and QR payment | Vietnamese number needed | Not realistic |
| ZaloPay | Local wallet and QR payment | Vietnamese number needed | Not realistic |
| Zalo | Dominant domestic messaging | Inconsistent | Only if asked |
Grab: the one app that matters
Grab is the single essential install, and it does more than book rides.
The ride side covers GrabBike, GrabCar in four and seven-seat versions, and GrabTaxi, which dispatches a metered taxi through the app. As of mid-2026 a short GrabBike hop runs around 15,000–30,000 VND ($0.60–1.20) and a cross-town GrabCar around 60,000–150,000 VND ($2.50–6), with the full fare quoted before you confirm. Our Grab price guide has the per-kilometre maths and the airport runs.
Beyond rides, GrabFood delivers from thousands of restaurants and GrabExpress moves parcels across a city. Payment can be cash or an in-app card. Foreign Visa and Mastercard credit cards generally work; some foreign debit cards fail verification, which is a known quirk rather than a fault in your account.
The reason it matters is pricing, not convenience. A quoted fare removes the negotiation that used to define arriving anywhere in Vietnam, in English.
Be and Xanh SM: the alternatives worth having
Two ride apps beat one, because the second hedges the first surging.
Be is Vietnamese-owned and frequently prices around 5 to 15 percent under Grab, especially on bikes. It also sells flight, bus and train tickets in the same app and carries an English toggle. Coverage is strong in the big cities, thinner elsewhere.
Xanh SM runs an all-electric VinFast fleet and is now the market leader rather than the challenger: it held 54.51 percent of Vietnam's app-taxi market in the first quarter of 2026 against Grab's 40.92 percent and Be's 4.57 percent. Its fares move less with demand, which makes it the app to check exactly when Grab surges in rain or rush hour.
Price-checking two apps before an airport run takes under a minute. The non-price side is in our Grab and taxis guide.
Google Maps, and what offline mode does not do
Download the regions you will visit before you fly, then understand what you have downloaded. Per Google's own documentation, offline maps do not provide transit, cycling or walking directions, and you lose live traffic and alternate routes. Driving directions are what survives, and downloads expire and need refreshing.
Vietnam adds its own friction. Addresses run down alleys off alleys — a number like 12/7/3 describes three levels of lane — and a pin dropped on a hem lands you at the mouth of the lane, not the door. Business hours are often wrong for small family places.
None of that is a reason to skip it — only to keep a screenshot of your hotel's name and address in Vietnamese, which solves what the map cannot.
Google Translate and the offline Vietnamese pack
Download the Vietnamese pack before you go. It runs to roughly 124 MB and includes camera, voice and handwriting translation offline — the difference between a working tool and a blank screen in a market with no signal.
Camera mode is the standout feature: point the phone at a menu, a bus timetable or a pharmacy label and read it in place. It handles printed text well and handwriting poorly, which describes most Vietnamese menus accurately enough.
Two caveats. Vietnamese is tonal and diacritics carry meaning, so text typed without tone marks can land somewhere unintended. The model also handles northern vocabulary more reliably than southern and central variants. For the words worth learning outright, our basic Vietnamese guide beats any app.
The visa and arrival-card portals are websites, not apps
This is the section with a genuine scam risk attached, so it is worth being precise. Vietnam's e-visa is issued through a government website at thithucdientu.gov.vn, with the older evisa.gov.vn address redirecting to the same portal. The official fee is $25 single entry or $50 multiple entry, valid up to 90 days, processing in about three working days. There is no official government app.
That gap gets filled by resellers. Lookalike domains ending in .com, .net and .org buy search ads that sit above the real portal and charge for a document you can obtain yourself: a January 2026 review of 47 third-party visa sites found an average charge of $79 for the same $25 e-visa. Some are legitimate agents offering form-filling help; others are harvesting your passport scan. Bookmark the government domain before you travel rather than searching when you are ready to apply.
The Digital Arrival Card is the same shape of thing. It became mandatory from 15 April 2026, starting at Tan Son Nhat and expanding through the year, is filed free on the immigration.gov.vn portal within 72 hours of arrival, and produces a QR code for the desk. Any site charging for it is charging you for nothing. Our visa and immigration atlas tracks the rollout.
MoMo and ZaloPay: what a visitor can actually do
Very little, and this is the answer travellers rarely get. MoMo, ZaloPay and VietQR are the rails behind the QR codes on nearly every counter in urban Vietnam. Registration runs against a Vietnamese phone number, and funding anything beyond a minimal wallet generally expects a Vietnamese bank account. For a two-week trip the setup cost is disproportionate to the benefit, and you may not clear verification at all.
The workaround is a phone wallet, not a local one. Apple Pay and Google Pay run on the contactless Visa and Mastercard network rather than the domestic rails, so anywhere already taking contactless — city hotels, malls, chains, supermarkets — usually takes them. Everything else is cash. Our card versus cash guide maps which layer takes what.
Booking apps: tours, trains and buses
Klook is the one most travellers already have, and it works normally here: English, international cards, and a deep catalogue of Vietnamese tours, attraction tickets and airport transfers. Prices are not automatically better than booking direct, but cancellation terms are clearer.
Trains are the awkward case. Vietnam Railways sells through dsvn.vn and its own app, but the site is only partly translated and built around Vietnamese-issued cards, so foreign bookings frequently stall at payment. Vexere is an official Vietnam Railways partner on the same inventory that accepts international Visa and Mastercard in English; Baolau and 12Go resell the same seats with a small markup. Station counters charge no fee.
Vexere covers long-distance buses too, and a day or two of lead time is enough outside holiday periods.
Messaging: Zalo dominates, and Telegram is blocked
Zalo is the domestic default by a wide margin, with around 81.3 million monthly active users as of June 2026 carrying roughly 2.2 billion messages a day, per DataReportal's Vietnam digital report. Vietnamese friends and small businesses use it for everything.
As a short-stay visitor you will rarely need it. Anyone in tourism dealing with foreign guests reaches you on WhatsApp, Messenger or a phone call, and Zalo's registration is inconsistent on foreign numbers. Install it only if a host asks.
One thing worth knowing: Telegram was blocked in Vietnam in May 2025 and should not be relied on for booking confirmations while you are in the country. Our connectivity atlas covers what else is restricted.
What you can skip
A short list, because install fatigue is real. Skip any dedicated Vietnam visa app. Skip MoMo and ZaloPay for a trip under a month. Skip currency converters, since your bank app and a rough mental rule handle it. Skip offline-map alternatives unless you are trekking seriously.
The eSIM app your data plan requires is the exception to install-light advice — set it up before you fly, and see our eSIM comparison for which one.
Limitations
- App capabilities change faster than this page. Grab, Be and Xanh SM adjust features, coverage and payment options continuously. Treat the foreign-card and foreign-number notes as the durable pattern rather than a guarantee for your specific bank.
- Wallet access is the least stable claim here. Rules on opening Vietnamese bank accounts and linking domestic wallets evolve, and a workable tourist version of MoMo or VietQR would change this advice materially. As of mid-2026, assume the local rails stay closed.
- Prices are mid-2026 ranges, not quotes. Ride fares move with city, demand, weather and promotion, and the figures here are planning baselines rather than audited tariffs.
- Portal and rollout details shift by decree. The Digital Arrival Card's airport coverage expanded during 2026 and continues to, and the e-visa portal has already changed address once. Confirm both on the government domain close to your travel date rather than from any summary, this one included.
- Market-share figures describe app-taxi trips, not every ride, and do not tell you which app is cheapest on your street corner.