Connecting Our Military Community

Real Mail, Real Fast

Send love, support, and photos straight from your phone

Share your moments

Share special moments with your recruit as easily as texting. No printing, no postage—just type your message, add a photo, and we handle the rest.

Keep them motivated

Keep them encouraged with motivational quotes, newsletters, and gift cards, and your updates. 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.

Every Letter Includes

  • SUPER Fast Delivery (1-2 days avg.)
  • 1 photo per letter
  • Stationery for them to write back
  • A pre-addressed return envelope
  • Tracking and delivery confirmation
  • Weekly training updates from the base
  • And More...

Stay in touch
wherever you are

Download the app on the Apple App Store, Google Play, 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 ❤️

Your Story, Preserved

Turn every letter, every photo, and every shared moment into a timeless keepsake.

Memory Books are custom-crafted to celebrate your recruit’s journey—capturing love, pride, and milestones in one beautifully printed book made to last a lifetime.

* Your recruit must have completed basic training to be eligible to purchase a Sandboxx Memory Book.

GEAR UP WITH GIFT CARDS

Send Exchange™ gift cards with your Letter — usable before, during, and after basic training.

Printed Together, Sent Together

Visiting the Exchange™ is almost a weekly occurrence for recruits in training, but the benefits don’t end when they graduate. Exchange™ gift cards can be saved in the Sandboxx app and are redeemable at any Exchange™ around the world.

Do good, by doing good

We’re building a world where every service member feels connected and supported.

We've delivered over

Letters
10000000

To recruits in training

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Recruits Signed Up
350000
Supporters Signed Up
3000000
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Watch how one mom kept in touch with her son during basic training.

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ABOUT US

We are a team of veterans, military spouses, and dedicated civilians—united by a shared purpose: to strengthen the resilience of our nation’s service members and their families.

With firsthand experience and unwavering commitment, we understand the challenges of military life. Our mission is simple but powerful: to walk alongside you, offering tools, guidance, and unwavering support throughout every step of your military journey.