Rating: 4.6/5 (10 votes)

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Sandboxx for Android


Key features of Sandboxx

  • Send Letters Overnight to Your Recruit 📬
  • Updated on Jan 22, 2021
  • Sandboxx APK is available for free download

App description by Sandbox Family Communication, Inc

Developed by veterans with decades of service, our mission is to support service members and their supporters throughout their military journey.

Sending letters to basic training and beyond has never been easier. With over 4 million letters sent to date, we have revolutionized the way you think of supporting your service member. A fully digital letter writing experience, overnight shipping, tracking and the option to add gift cards makes Sandboxx the ultimate supporter tool.

With a growing community of over 1 million Sandboxx users, we are continuing to build more products to help. Get access to base specific training updates from within the app as your recruit progresses through basic training. Refer friends and family to earn free Letters and ensure your service member can receive even more mail.

Check out Sandboxx News to stay up to date with all that’s going on in the military space. Grab some additional stamps, newsletters or motivation to mail your recruit in the Sandboxx Shop or book your graduation trip with Sandboxx Travel.

With Sandboxx, we’ve got you covered for all your basic training needs.


The easiest way to send letters to basic training or overseas. Send a letter, anytime, anywhere. We physically print your mail, include return stationery, provide tracking and overnight it to your recruit at any recruiting base.


Stay up to date on your recruit as they progress through basic training. Learn about what they are going through on a weekly basis, all accessible within the Sandboxx app.


Your essential source of news from within the military space, Sandboxx News brings you a wealth of information to stay up to date on the ever evolving world of military life. Covering news to lifestyle to military affairs, the Sandboxx Editorial team brings decades of real life experience and education straight to your phone.


Whether you want to purchase military apparel for yourself or set up a daily mail send for your recruit, the Sandboxx Shop stocks a wide variety of recruit and supporter centric products that are sure to delight your recruit’s entire support system.

• OPSEC and PERSEC compliant

• Automatically connect with your service member to easily send letters

• Write your letter, add a photo and gift card and send within minutes

• Track your letter from Sandboxx HQ to the base mailroom

• Access to customer support fully staffed by veterans and military spouses

• Earn badges and become your recruit’s ultimate supporter

• Book flights, hotels and rental cars for your next trip

No Federal or DoD Endorsement Implied.

Sandboxx is recently updated supporters letter application by Sandbox Family Communication, Inc, that can be used for various training purposes. Its latest version 10.5.7 has 586553 downloads. You can download Sandboxx latest APK for Android right now.


License Free
Requirements Require Android 6.0 and up
Language English
Categories lifestyle, supporters, letter, training, military, sending
Size 60M
Version 10.5.7
Audience Everyone
Publish Date
Author Sandbox Family Communication, Inc
Downloads 586553
Download options APK
User Rating 4.60 / 5


  • So happy I ran across this APP. Everything about it is worth every penny and more. The daily motivational reminders is priceless. It's all right here at my finger tips. I can start a letter and come back to it later to finish. We also made our travel arrangements through Sandboxx. Lowest rates we could find!

  • Great way to get letters to my Soldier, fast and easy!!! I love that I can send pictures and the Soldiers gets envelope, paper and stamp, one less thing for them to worry about. Thank you Sandboxx!! GREAT APP

  • The best app for so many reason I wont bother listing them all, just get the app if you plan on sending anyone letters, especially if you're going to send someone multiple

  • I like using the microphone on my phone to compose the letter. I like the photo feature, which allows you to attach one photo with each letter. I love using Sandboxx!

  • Such a great form of fast communication. Although I wish it wasnt so pricey, I love it. They even give the supplies to let my boyfriend send letters back quickly!

  • Makes communicating easy legible and fairly affordable. My son gets the letters and says it makes his week to hear about home. Highly recommend.

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