Summer is in full swing, and you're undoubtedly making your packing lists and checking them twice. The time leading up to traveling can be a bit stressful, so to help abate your worries, we've compiled a list of apps that will aid you in your trip planning. These smartphone service make great tools when you're on vacation – from helping you pack to perusing the web for the best airline deals – we've got you covered!

TRIPCASE

This free app is great for organizing your trip. You can add your flight details, hotel reservations, travel itinerary and even car rental reservations. Your boarding passes can be accessed through this app, and it'll help keep you on track. The best part? No need to shuffle for paperwork because it's all in the app!

KAYAK

Kayak is an awesome app for finding the best airline deals from all over the web. It checks not only the official airline websites for special deals, but also compiles prices from different travel sites like Orbitz and Expedia. You can also use this app to search for hotel deals.

PACKING PRO

If you're like me and go just a little crazy with packing, this app is going to save your life! It's an organizer's dream, featuring comprehensive list-making tools that will ensure you don't forget a thing! If you're packing for the whole family, this app is a godsend! You can even sort by categories to ensure you've got everything down! Though it's $2.99, it's worth getting because it can definitely keep you on track!

CITYMAPS 2GO PRO

This $4.99 app is worth every penny! This app allows you to access maps from all over the globe without internet access – perfect for when you're traveling to places where WiFi isn't easily accessible. Of course, you'll need to download the maps before you need them, so there's still a little pre-planning needed, but once you've got them all on your smartphone, just open it up and you're good to go!

WiFiMapper

Speaking of WiFi access, when you want to upload photos from your awesome trip or need to Skype with folks back home, you're probably gonna wanna find some WiFi hotspots. With this free app, you can find WiFi hotspots all over the world with a few taps! It'll show you cafes and other public places that offer free internet access.

XECurrency

Not sure how much your dollars are gonna be worth in Euro, Yen or Baht? With this handy, free currency converter you'll be able to manage your money easily.