Here are 8 mobile apps that are essential when traveling. 
 
1. Maps.me for offline maps

 

2. Xe for money exchange converter

 

3. Trip Advisor for restaurant and activities advice
 

4. TKTS: Save up to 70% on broadway shows.
 

5. Google Trips to keep your travel confirmation documents in one place

 

6. Transit - New-York for subway and bus information
 

7. Open Table for restaurants
 

8. Google Translate to translate languages