Sign In

Connecting Our Military Community


From Anywhere

Send letters to your recruit, connect with your recruiter or prepare for basic training. Download on the Apple App Store, Get in on Google Play Store or sign up on the web.

I haven't written a review for an app in years but this app is so easy to use and very convenient I had to. My boyfriend is in boot camp and I had gone to Mexico for a little and wasn't able to write him handwritten letters so I sent him letters through here and they get to him so fast about 1-2 days and even print pictures. I didn't have a printer so that was a plus. It can be a little pricey but its worth it. Also, the app's UI is very user-friendly and pleasing to look at. They have been updating the app's look recently and adding helpful features, it's a great job that they have done. 6000 characters as the limit is pretty good. 

I have been using this app on my phone in conjunction with the online version on my laptop in a web browser and I like it tremendously. The notifications on the phone app are extremely helpful. I think this is a very well-thought-out service and it is extremely useful and I honestly would give it more stars if I could. I don't agree with the few negative reviews I just read here at all. My experiences with this app and service have been EXTREMELY positive. For anyone who has a recruit at boot camp, I HIGHLY recommend this service/app to get letters to them twice as fast as the postal mail service.

I’ll admit I was skeptical of paying for a service to send letters to my son when I could send him a handwritten letter from home. However, our family has come to like Sandboxx and what it provides for us. Sandboxx has given us the option to write a letter at lunch or on our breaks at work. The option to add pictures and have him receive the letter quicker than he could regular mail. He usually doesn’t receive it until the following day, but still a faster way to communicate with him. We also love that he gets paper and an envelope to mail back. I can also add return postage and he doesn’t even have to worry about the stamp! 

Love this app. It's feature rich yet simple and intuitive. One of my favorite features of the app is "Letters to Heroes". As I don't have an immediate family member in the military, I still want to show support for the troops and share events especially during veterans day, memorial day, independence day etc. Being able to quickly take a picture and write a little note and sharing that with a hero is amazing. If you are in the military, there are a bunch of other features specially tailored for you. It covers the entire lifecycle starting from Recruits to Active Duty to Veterans. Kudos to the team who are a part of this wonderful app.

When my son joined we thought we knew more than most about what to expect but I cannot thank Sandboxx enough to provide a crucial connection to my son. He was truly on his own for the first couple weeks but I know it meant the world to him to have his letters arriving with regularity. The pictures were key. I know my son was happy to see the pictures of us being silly. These letters fill their evenings before bedtime and on Sundays. It was also great that I could add the pre-addressed envelope with return postage and all he had to do was write his letter on the provided paper. 

Sandboxx has been my heart lifesaver! I can write letters to my son in the Navy boot camp and also purchase gift cards, Bible verses, motivational quotes, and daily articles news that they deliver every day. Just knowing my son gets his letters, quotes, and pics delivered overnight makes me happy and my heart warm. I mean, it keeps me posted with other news from the military, commander, and download forms that I need. Easy to use. Updated constantly. I'm able to track my letter and see when it's delivered. I just love it! Thank you, sandboxx, from one satisfied momma ❤️


For Supporters

Share your moments

As easy as sending a text message, No need to print anything, When you’re done writing, add your photos.

Keep them motivated

Send daily and weekly motivational quotes, newsletters to keep your recruit motivated and informed and send stamps so they are not worried about postage.

Leave the rest to us

Submit your letter by 4:30 p.m. ET Mon through Thu and enjoy next-day delivery to your recruit’s basic training or bootcamp mailroom.


For Recruiters,
and recruits

Prepare for Basic

Mentally and physically prepare for the battles that lie ahead at basic training – everything from training guides, packing lists, and more.

Direct access

Communicate with your recruiter and make sure you have all the prerequisites completed before you ship.

Message securely

Create groups, message privately and more. Use alerts for automatic notifications to get through the list of tasks before you ship.

Get The App With 2.5M+ Downloads


Everything you need to stay connected during basic training and prepare for your military life.

Our Commitment

Do good,
by doing good

We’re dedicated to creating a world where every service member feels connected and supported, regardless of distance. We bring a sense of comfort, community, and joy to the unique experiences of military life.

We've delivered over


To recruits in training

http://thenounproject.comThe Noun ProjectIcon TemplateRemindersStrokesTry to keep strokes at 4pxMinimum stroke weight is 2pxFor thicker strokes use even numbers: 6px, 8px etc.Remember to expand strokes before saving as an SVG SizeCannot be wider or taller than 100px (artboard size)Scale your icon to fill as much of the artboard as possibleUngroupIf your design has more than one shape, make sure to ungroupSave asSave as .SVG and make sure “Use Artboards” is checked100px.SVG
Recruits Signed Up
Supporters Signed Up

Prepare yourself

Military Family

Congress Puts Service Members and Families First in New Quality of Life Report

As parents, family, and friends of new military members, it’s crucial to understand the ongoing efforts to enhance the quality of life for your friends and loved ones as they embark on their military journey. Joining the military opens up a world of possibilities and benefits with unwavering congressional support. The people you elect for your districts and states all care about the well-being of our Soldiers, Sailors, Marines, Airmen, Guardians, and Coast Guard.

Read More
Basic Training

Phone Calls During Basic Training

Today’s generation has practically grown up with a cell phone in hand. We live in a world where instant gratification in terms of communication has

Read More
Basic Training

Enlisted U.S. Army Ranks

Before you or your trainee get to basic training, most people don’t have a very thorough understanding of military ranks. Everybody recognizes the ones that

Read More
Basic Training

What is Military Time?

In military settings, time is denoted using a 24-hour clock system rather than the conventional 12-hour format. You’ve likely become familiar with military time if

Read More

Stay connected

How a mom kept in touch with her son when he was at basic training.

Play Video


We are  veterans, military spouses, and civilians united by a shared purpose: to contribute to the resilience of our country’s military members and their families. Our mission is to provide you with the support you need during your military journey.