Sandboxx
8.2 1K+
v20.34.1 by Sandboxx, Inc.
About Sandboxx
Sandboxx (Package Name: com.sandboxx.android) is developed by Sandboxx, Inc. and the latest version of Sandboxx 20.34.1 was updated on May 12, 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 20.34.1 Update
We update Sandboxx frequently to support you throughout your military journey.- Fix an issue preventing Samsung phones from being able to scroll correctly while drafting a letter.
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
582
May 8, 2026
Sandboxx
20.34.1
(582)
Requires Android: Android 8.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: 41e738c0d5ee130a430f6db6822b89df00b8331f
Base APK: com.sandboxx.android.apk
Split APKs: config.arm64_v8a, config.en, config.mdpi
Size: 74.23 MB
What's New:
We update Sandboxx frequently to support you throughout your military journey.
- Fix an issue preventing Samsung phones from being able to scroll correctly while drafting a letter.
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 an issue preventing Samsung phones from being able to scroll correctly while drafting a letter.
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
582
May 12, 2026
Sandboxx
20.34.1
(582)
Requires Android: Android 8.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: d8fc59bdbc7419c6263e71306cfc11b4c6c236e7
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.xxxhdpi, config.zh
Size: 44.16 MB
What's New:
We update Sandboxx frequently to support you throughout your military journey.
- Fix an issue preventing Samsung phones from being able to scroll correctly while drafting a letter.
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 an issue preventing Samsung phones from being able to scroll correctly while drafting a letter.
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
582
May 12, 2026
Sandboxx
20.34.1
(582)
Requires Android: Android 8.0+
Architecture: armeabi-v7a
Screen DPI: nodpi
SHA1: 4aca103d78750ebe2a96eef9ba9c3286720db127
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: 76.42 MB
What's New:
We update Sandboxx frequently to support you throughout your military journey.
- Fix an issue preventing Samsung phones from being able to scroll correctly while drafting a letter.
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 an issue preventing Samsung phones from being able to scroll correctly while drafting a letter.
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 8.0+
nodpi
Variant
Arch
Version
DPI
580
May 1, 2026
Sandboxx
20.33.1
(580)
Requires Android: Android 8.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: c185022b79d2a4400cf5e896e5436bf880c3bc56
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.xxxhdpi, config.zh
Size: 44.09 MB
What's New:
We update Sandboxx frequently to support you throughout your military journey.
- Fix a crash impacting users with multiple addresses with the same name in their contact list while drafting a letter.
- Rework image upload flows to reduce permissions requirements.
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 impacting users with multiple addresses with the same name in their contact list while drafting a letter.
- Rework image upload flows to reduce permissions requirements.
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
580
May 1, 2026
Sandboxx
20.33.1
(580)
Requires Android: Android 8.0+
Architecture: armeabi-v7a
Screen DPI: nodpi
SHA1: 50cd350bb90e2b76b635f01228a6b59bc81c7af1
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: 76.22 MB
What's New:
We update Sandboxx frequently to support you throughout your military journey.
- Fix a crash impacting users with multiple addresses with the same name in their contact list while drafting a letter.
- Rework image upload flows to reduce permissions requirements.
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 impacting users with multiple addresses with the same name in their contact list while drafting a letter.
- Rework image upload flows to reduce permissions requirements.
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 8.0+
nodpi
Variant
Arch
Version
DPI
574
April 25, 2026
Sandboxx
20.33.0
(574)
Requires Android: Android 8.0+
Architecture: armeabi-v7a
Screen DPI: nodpi
SHA1: 8d1e6345462a40cc5dda13ffd02db55b5aa85096
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: 76.21 MB
What's New:
We update Sandboxx frequently to support you throughout your military journey.
- New payment method entry experience
- Improved letter draft save behavior
- Revamped onboarding experience
Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
- New payment method entry experience
- Improved letter draft save behavior
- Revamped onboarding experience
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 8.0+
nodpi
574
April 25, 2026
Sandboxx
20.33.0
(574)
Requires Android: Android 8.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: db55ad84a2ce6cf9ddfbe32b1dc7db23f53306bb
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.xxxhdpi, config.zh
Size: 44.09 MB
What's New:
We update Sandboxx frequently to support you throughout your military journey.
- New payment method entry experience
- Improved letter draft save behavior
- Revamped onboarding experience
Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
- New payment method entry experience
- Improved letter draft save behavior
- Revamped onboarding experience
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
Variant
Arch
Version
DPI
573
April 13, 2026
Sandboxx
20.32.0
(573)
Requires Android: Android 8.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: 6a2b39c8595fc476ba9f6eae235ccc0eb86fd9d5
Base APK: com.sandboxx.android.apk
Split APKs: config.arm64_v8a, config.en, config.mdpi
Size: 73.4 MB
What's New:
We update Sandboxx frequently to support you throughout your military journey.
- Improved support squad experience
- Improved profile management experience
- Many more small improvements throughout
Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
- Improved support squad experience
- Improved profile management experience
- Many more small improvements throughout
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
573
April 17, 2026
Sandboxx
20.32.0
(573)
Requires Android: Android 8.0+
Architecture: armeabi-v7a
Screen DPI: nodpi
SHA1: cf2c3d40cc675711d80108a52ed54764302c5ea5
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: 75.67 MB
What's New:
We update Sandboxx frequently to support you throughout your military journey.
- Improved support squad experience
- Improved profile management experience
- Many more small improvements throughout
Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
- Improved support squad experience
- Improved profile management experience
- Many more small improvements throughout
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 8.0+
nodpi
573
April 17, 2026
Sandboxx
20.32.0
(573)
Requires Android: Android 8.0+
Architecture: arm64-v8a
Screen DPI: nodpi
SHA1: 9a63cb9efac9bb1e43aa8f630d7bece849180859
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: 43.02 MB
What's New:
We update Sandboxx frequently to support you throughout your military journey.
- Improved support squad experience
- Improved profile management experience
- Many more small improvements throughout
Love the app? Rate us! Have a question or need help? Email us at happiness@sandboxx.us, we'd love to hear from you.
- Improved support squad experience
- Improved profile management experience
- Many more small improvements throughout
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
More Information
Package Name:
Update Date:
2026-05-12
Latest Version:
20.34.1
Need Update:
Available on:
Requirements:
Android 8.0+
Report:
Safe to Download
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