I’ve tested over 100 travel apps across 6 years of full-time travel. Most are forgettable. Here are the 22 that actually live on my phone.
The 5 apps that go on every traveler’s phone
1. Google Maps
The single most important travel app. Beyond directions: it has reviews, photos, offline maps (download before you go), public transit data, business hours, real translations of menus via the camera. If I could only have one travel app, this is it.
Pro tip: Download offline maps for your destinations BEFORE you leave. Search > tap your profile > Offline maps > Select your own map.
2. WhatsApp
The default messaging app in most of the world outside North America. Hotels, restaurants, tour operators, drivers — all use WhatsApp. Install it before you go. Most international texting in Europe, Asia, Latin America, Middle East happens here.
3. Google Translate
The camera-based translation is genuinely magical: point at a menu, see English text overlaid. The conversation mode does real-time speech translation. Download offline language packs for your destinations.
4. Airalo (or similar eSIM)
Buy data plans for the country you’re in. $9-15 for a week of solid mobile data in most countries, vs $10-15 PER DAY for your US carrier’s international roaming.
5. XE Currency Converter
Real exchange rates updated continuously. Works offline using the last known rate. Free, no ads, no upsells.
Booking apps
6. Booking.com
Best for hotels worldwide. The interface is intentionally manipulative (“3 people are viewing!” “Book in next 14 minutes!”), but the inventory is real and the cancellation policies are usually clear. Filter by “Genius” loyalty discounts for 10-15% off.
7. Hostelworld
Specifically for hostels. Better filtering than Booking.com for shared dorms, females-only rooms, party hostels vs quiet hostels. Reviews skew toward backpacker priorities (location, social vibe) vs hotel reviews (housekeeping, amenities).
8. Airbnb (with caution)
Still useful for apartments and unique stays, but quality has declined. Look for hosts with 100+ reviews and 4.9+ ratings. Avoid new hosts with under 20 reviews.
9. Google Flights
Covered in the cheap flights article. The strongest free flight search tool.
10. Hopper
Use for price prediction, then book directly with the airline.
Navigation + Transit
11. Citymapper
The best public transit app for major world cities. Specifically: London, NYC, Paris, Berlin, Tokyo, Singapore, Sydney. Routes you better than Google Maps for complex transit systems.
12. Maps.me
Offline maps that work without any internet at all. Hiking trails, remote villages, places Google Maps doesn’t cover well. Free.
13. Rome2Rio
Shows ALL ways to get from A to B: flight, train, bus, ferry, car. Useful when you don’t know if a destination is accessible by train vs only flight.
14. Uber / Bolt / Grab / DiDi
Region-specific ride apps. Uber works in most US cities + parts of Europe. Bolt is bigger in Europe + Africa. Grab is dominant in Southeast Asia. DiDi rules in Latin America. Install the one for your region.
Money
15. Wise (formerly TransferWise)
Multi-currency account + debit card with real exchange rates. Hold 40+ currencies. ATM withdrawals free up to $100/month, then 1.75% (still way better than your US bank’s 3% + $5 fee).
16. Revolut
Similar to Wise but more banking features. Free ATM withdrawals up to $200/month. The premium tier ($10/month) adds metal cards, travel insurance, and unlimited ATM withdrawals.
17. Charles Schwab Debit Card
Not an app per se but the related app is useful. Schwab refunds ALL international ATM fees. If you’re American and travel internationally, get this account. The card is free, the account has no minimums.
Safety + Documents
18. Bitwarden / 1Password
Password manager. Critical for travel because you’ll log into your bank, your email, your work tools from public WiFi. Hard passwords for everything, accessed via one master password.
19. NordVPN / Mullvad
VPN for accessing your bank from abroad (some banks block foreign IPs), streaming services that geo-block, and general privacy on hotel/cafe WiFi. NordVPN is most popular; Mullvad is more privacy-focused.
20. STEP (Smart Traveler Enrollment Program)
US State Department app. Register your trip with the local US embassy. They send you safety updates and can find you in emergencies (riots, earthquakes, etc.). Free.
Productivity (for working travelers)
21. Notion
Travel planning + work + journaling in one app. I keep a “Trip” template with itinerary, restaurant reservations, contact info for hosts, packing list, expenses. Synced across phone and laptop.
22. Time Buddy / World Clock
When you’re juggling time zones for meetings, calls home, and trip planning. Shows multiple cities side by side. Time Buddy on iOS, World Clock on most platforms.
What I uninstalled
- TripIt. Used to be useful for forwarding flight confirmations. Google now does this automatically in Gmail.
- Foursquare/Swarm. Dead.
- Yelp. Google Maps reviews are now better and more recent for international destinations.
- Lonely Planet apps. Static, outdated, expensive. Rough Guides, Wikitravel, Wikivoyage are free and updated.
- Travel-specific budgeting apps. Just use your bank’s app or YNAB. Travel apps add nothing.
- TripAdvisor. Google’s review ecosystem has eaten TripAdvisor. The TripAdvisor reviews skew negative (people who had bad experiences are more motivated to review).
The complete setup before you leave
- Install all the apps above
- Sign in to each from your home WiFi (some require SMS verification that won’t work abroad)
- Download offline maps for your destinations
- Download offline language packs in Google Translate
- Save important documents (passport scan, insurance card, copies of credit cards) to your password manager
- Buy your eSIM (Airalo, Saily, etc.) before you go — install but don’t activate until landing
- Set up two-factor authentication for banking apps using authenticator (Google Authenticator, Authy) instead of SMS — SMS won’t work abroad without roaming
- Tell your bank you’re traveling (saves card from being frozen)
FAQs
What are the must-have travel apps for international trips?
Google Maps (with offline maps downloaded), WhatsApp, Google Translate, an eSIM app like Airalo, and Wise or Revolut for money. These five cover navigation, communication, language, connectivity, and finances.
Do I need a VPN for travel?
Yes, for two reasons: (1) Some US banking apps block foreign IPs and a VPN lets you appear US-based to log in safely. (2) Hotel and cafe WiFi networks are often insecure. A VPN encrypts your traffic.
What’s the best app for tracking travel expenses?
Your existing bank’s app or YNAB (You Need A Budget). Travel-specific expense apps add no value over normal budgeting tools. Most banks now categorize spending automatically.
How do I avoid roaming charges on my US phone?
Disable cellular data on your US line in Settings before you leave. Use an eSIM (Airalo, Saily, Holafly) for data abroad. Keep the US line active for receiving SMS verification codes — incoming SMS is usually free even abroad.
Are airline-specific apps worth installing?
Only the apps for airlines you fly frequently. Most airline apps are useful for: digital boarding passes, real-time flight status, gate changes, and rebooking when flights are cancelled. If you fly one airline twice a year, skip its app.
Frequently Asked Questions
What are the must-have travel apps for international trips?
Five apps cover the essentials: Google Maps with offline maps downloaded for navigation, WhatsApp for messaging, Google Translate with offline language packs for communication, an eSIM app like Airalo for connectivity, and Wise or Revolut for money management with low international fees.
Do I need a VPN for traveling abroad?
Yes, for two main reasons: many US banking apps block foreign IP addresses and a VPN lets you appear US-based to log in. Hotel and cafe WiFi networks are also often insecure – a VPN encrypts your traffic. NordVPN and Mullvad are reliable options.
What’s the best app for tracking travel expenses?
Your existing bank’s app or YNAB (You Need A Budget) work better than travel-specific expense apps, which add no value. Most banks now categorize spending automatically and convert foreign transactions to your home currency for easy tracking.
How do I avoid roaming charges on my US phone abroad?
Disable cellular data on your US carrier line in Settings before you leave. Use an eSIM (Airalo, Saily, Holafly) for data abroad – typically $9-15 per week. Keep the US line active for receiving SMS verification codes, which are usually free incoming.
Are airline-specific apps worth installing?
Only for airlines you fly frequently. Airline apps are useful for digital boarding passes, real-time flight status, gate changes, and rebooking when flights are cancelled. If you fly one airline only twice a year, skip its app – their website works fine for occasional bookings.