Description
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 6 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. With Sandboxx, we’ve got you covered for all your basic training needs. SEND LETTERS TO BASIC TRAINING AND BEYOND 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. GET WEEKLY TRAINING UPDATES 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. LEARN MORE WITH SANDBOXX NEWS 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. GET EXCLUSIVE SANDBOXX PRODUCTS 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 No Federal or DoD Endorsement Implied. Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
What's New
We update Sandboxx frequently to support you throughout your military journey. This release includes: - Updated home dashboard layout to make it easier to find what you need - Improved Community navigation experience - Improved support for dynamic font sizes - General performance improvements and bug fixes Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
Details
- Developer
- Sandboxx, Inc.
- Main Category
- Lifestyle
- Version
- 20.44.0
- Version Release
- 2026-06-03
- Initial Release
- 2014-10-07
- Size
- 111 MB
- Age Rating
- 4+
- Price
- Free
- Languages
- EN, ES
- Bundle ID
- com.sandboxx.sandboxx
- Version Rating
- ★ 4.85 (158,630)
- First Seen
- 2026-06-01
Metadata updated 2026-06-16
Rank History
Free · Max 90 days · Top 5 categories shown (Y-axis: rank, lower is better)
Free Rankings
Paid Rankings
No rankings
Competitive Benchmark — Lifestyle Top 10
What it takes to beat this app — comparison with the category's top apps. The orange row is the current app.
| # | App | Price | Rating | Ratings | Langs | Last Update |
|---|---|---|---|---|---|---|
| 1 | T-Life | Free | ★ 4.79 | 1,263,497 | 2 | 2026-06-10 |
| 2 | Free | ★ 4.78 | 5,681,935 | 38 | 2026-06-10 | |
| 3 | Zillow Real Estate & Rentals | Free | ★ 4.80 | 7,222,252 | 1 | 2026-06-15 |
| 4 | SmartThings | Free | ★ 4.57 | 775,743 | 72 | 2026-04-30 |
| 5 | Ring - Always Home | Free | ★ 4.72 | 1,742,088 | 11 | 2026-06-12 |
| 6 | Hinge Dating App: Match & Date | Free | ★ 4.41 | 1,080,434 | 12 | 2026-06-15 |
| 7 | LG ThinQ | Free | ★ 4.60 | 217,801 | 47 | 2026-06-01 |
| 8 | Partiful: Party Invite Maker | Free | ★ 4.96 | 197,077 | 1 | 2026-06-09 |
| 9 | Tinder Dating App: Date & Chat | Free | ★ 4.18 | 1,706,556 | 54 | 2026-06-09 |
| 10 | Google Home | Free | ★ 4.56 | 1,307,364 | 55 | 2026-06-15 |
| 81 | Sandboxx | Free | ★ 4.85 | 158,630 | 2 | 2026-06-03 |
User Reviews
Amazing app. Especially if you’re always on the go and can’t quite write a letter and mail it off. Sandbox is the best. Gives you a free picture with the letter you can upload straight from your phone instead wasting time going to a store to print one out
Love how quick and easy this is!!!! If I get a quick thought, I just send another letter and include a picture!
This app is great to use and they very helpful when they need to be I can’t say enough good things about this app
Muchas gracias por poder la familia contar con esta vía para comunicarse con sus soldados
Perfect five out of five I get to write mail in half an hr I don’t have to drive to the first mail and drop it off I can do it anywhere wether I’m at home store anywhere
Probable se bloqueo la aplicación Finalmente logré enviarla
Non-stop notifications constantly trying to get you to buy the next package or next package “deal”. My kid still hasn’t received a single letter Sandbox has supposedly mailed him from me. I still have 2 letters I paid for and he still has all I paid for him to use to respond. No issues using the good old fashioned snail mail either way though.
It really saves me time to be able to write the letters on the run. We have a busy life with younger siblings of my recruit still at home plus work. I’m able to write in those free minutes before appointments, on a break at work or while at a track meet. While I am a huge fan of putting pen to paper and I understand that a typed letter doesn’t feel exactly the same the ability to add photos makes up for it. Not having to print photos yourself and trying to make it all fit is amazing. My son also appreciates the pre-addressed and stamped envelope and how much time it saves him when he has so little time to write back.
Easy to use and a great way for my GI Joe to hear from his family. Very convenient.
I really love how easy it is to send letters now. When I was enlisted in 94, I wish life was this easy. Unfortunately, we had snail mail and things were not as modern. So this is such a great idea. I do write letters by hand also, but this is great too.
Reviews are collected only for apps with detected changes (new entries or sharp risers).