Sending letters to basic training has never been easier.

Staying connected should be effortless. Write your letter from your phone or computer, include a photo & enjoy next day delivery. Support has never been simpler.

What You Can Do With Sandboxx


Send letters overnight

Send letters to basic training from your phone or computer. Your letter will be automatically converted into physical mail and shipped to base the next day. Snail mail is a thing of the past.


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People love Sandboxx

See why millions of military family members love using Sandboxx to stay connected.


“I heard really great things about Sandboxx and decided to try it. My son gets a self-addressed envelope with every letter I send. I can attach one photo to include with each letter! I love the weekly information that they email me about what my recruit will be doing during the week.”

Barbi T.

“Sandboxx has really changed my perspective on a lot of things. I’m able to connect with my loved one during the best and worst times, while also having the freedom to send a personal image as well. Sandboxx has guided me through a lot while also safely getting my loved one their letter.”

Hannah G.

“My son joined the Marines in July an I was so afraid I wasn’t going to be able to keep in contact with him. Thanks to Sandbox it was so easy their app is a must for anyone who wants to keep in touch with a loved one in the service. So easy to use and great customer service.”

Thomas J.

“Sandboxx has proven to be a godsend service for this first-time military mom. I loved the ease at which I could connect with my loved one. When I needed assistance with updating my account information, the support team answered within minutes and treated me with the utmost compassion and respect.”

Marcia B.

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