Sandboxx
8.0 1K+
v20.41.2 by Sandboxx, Inc.
About Sandboxx
Sandboxx (Package Name: com.sandboxx.android) is developed by Sandboxx, Inc. and the latest version of Sandboxx 20.41.2 was updated on August 2, 2026. Sandboxx is in the category of Lifestyle. You can check all apps from the developer of Sandboxx and find 200 alternative apps to Sandboxx on Android. Currently this app is for free. This app can be downloaded on Android 8.0+ on APKFab or Google Play. All APK/XAPK files on APKFab.com are original and 100% safe with fast download.
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 8 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 2 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 photos 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
No Federal or DoD Endorsement Implied.
Sending letters to basic training and beyond has never been easier. With over 8 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 2 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 photos 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
No Federal or DoD Endorsement Implied.
Sandboxx 20.41.2 Update
We update Sandboxx frequently to support you throughout your military journey. This release includes:- Fix a crash when rendering contacts list
- Clarify cost calculation on bundle checkout
Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
Read More
Sandboxx Features
Related Videos
How To Send Letters To Basic Training
Previous Versions
More
Variant
Arch
Version
DPI
605
August 2, 2026
Sandboxx
20.41.2
(605)
Requires Android: Android 8.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: a8bffb3da71c427430327a4420ffaac2016a1796
Base APK: com.sandboxx.android.apk
Split APKs: config.arm64_v8a, config.en, config.xhdpi
Size: 47.32 MB
What's New:
We update Sandboxx frequently to support you throughout your military journey. This release includes:
- Fix a crash when rendering contacts list
- Clarify cost calculation on bundle checkout
Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
- Fix a crash when rendering contacts list
- Clarify cost calculation on bundle checkout
Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
arm64-v8a
Android 8.0+
nodpi
605
August 2, 2026
Sandboxx
20.41.2
(605)
Requires Android: Android 10.0+
Architecture: armeabi-v7a
Screen DPI: nodpi
SHA1: 27c3455a5c24542646e68b353bbccb0a91c73e6c
Base APK: com.sandboxx.android.apk
Split APKs: config.ar, config.armeabi_v7a, config.de, config.en, config.es, config.fr, config.hi, config.in, config.it, config.ja, config.ko, config.mdpi, config.my, config.pt, config.ru, config.th, config.tr, config.vi, config.zh
Size: 75.72 MB
What's New:
We update Sandboxx frequently to support you throughout your military journey. This release includes:
- Fix a crash when rendering contacts list
- Clarify cost calculation on bundle checkout
Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
- Fix a crash when rendering contacts list
- Clarify cost calculation on bundle checkout
Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
armeabi-v7a
Android 10.0+
nodpi
Variant
Arch
Version
DPI
602
July 31, 2026
Sandboxx
20.41.1
(602)
Requires Android: Android 8.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: 5e8016be8e44c032d03714e0214d340e8a5c2a9c
Base APK: com.sandboxx.android.apk
Split APKs: config.ar, config.arm64_v8a, config.de, config.en, config.es, config.fr, config.hi, config.in, config.it, config.ja, config.ko, config.my, config.pt, config.ru, config.th, config.tr, config.vi, config.xhdpi, config.zh
Size: 49.94 MB
What's New:
We update Sandboxx frequently to support you throughout your military journey. This release includes:
- Adjustment to google login for reliability
Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
- Adjustment to google login for reliability
Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
arm64-v8a
Android 8.0+
nodpi
602
July 31, 2026
Sandboxx
20.41.1
(602)
Requires Android: Android 10.0+
Architecture: armeabi-v7a
Screen DPI: nodpi
SHA1: 445702dc6f11df33e09007fea63cf60b2c8dca1b
Base APK: com.sandboxx.android.apk
Split APKs: config.ar, config.armeabi_v7a, config.de, config.en, config.es, config.fr, config.hi, config.in, config.it, config.ja, config.ko, config.mdpi, config.my, config.pt, config.ru, config.th, config.tr, config.vi, config.zh
Size: 75.71 MB
What's New:
We update Sandboxx frequently to support you throughout your military journey. This release includes:
- Adjustment to google login for reliability
Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
- Adjustment to google login for reliability
Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
armeabi-v7a
Android 10.0+
nodpi
Variant
Arch
Version
DPI
600
July 22, 2026
Sandboxx
20.40.0
(600)
Requires Android: Android 8.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: aeb9a76aaad1d3c702b76b27568985be52db3424
Base APK: com.sandboxx.android.apk
Split APKs: config.arm64_v8a, config.en, config.xhdpi
Size: 47.19 MB
What's New:
We update Sandboxx frequently to support you throughout your military journey. This release includes:
- Letter preview in authoring flow
- Fix support squad letter sharing
Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
- Letter preview in authoring flow
- Fix support squad letter sharing
Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
arm64-v8a
Android 8.0+
nodpi
600
July 22, 2026
Sandboxx
20.40.0
(600)
Requires Android: Android 10.0+
Architecture: armeabi-v7a
Screen DPI: nodpi
SHA1: 69c6794111c53aed6c9b2e7329dfc0f7e5e979d7
Base APK: com.sandboxx.android.apk
Split APKs: config.ar, config.armeabi_v7a, config.de, config.en, config.es, config.fr, config.hi, config.in, config.it, config.ja, config.ko, config.mdpi, config.my, config.pt, config.ru, config.th, config.tr, config.vi, config.zh
Size: 75.4 MB
What's New:
We update Sandboxx frequently to support you throughout your military journey. This release includes:
- Letter preview in authoring flow
- Fix support squad letter sharing
Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
- Letter preview in authoring flow
- Fix support squad letter sharing
Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
armeabi-v7a
Android 10.0+
nodpi
Architecture: x86
Screen DPI: nodpi
SHA1: 3950790026685c2d48447a18fb61ec91b553b210
Size: 72.72 MB
What's New:
We update Sandboxx frequently to support you throughout your military journey. This release includes:
- Login stability fixes
- AI assisted letter authoring
- Lots of other small bug fixes and UI improvements
Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
- Login stability fixes
- AI assisted letter authoring
- Lots of other small bug fixes and UI improvements
Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
More Information
Package Name:
Update Date:
2026-08-02
Latest Version:
20.41.2
Need Update:
Available on:
Requirements:
Android 8.0+
Report:
Safe to Download
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