Version 20.40.0
- Uploaded on
- Aug 02, 2026
- File
- 47.19 MB · XAPK
- Android
- Android 8.0+
- Status
- Archived build
- Size
- 47.19 MB
- File type
- XAPK
- Requirement
- Android 8.0+
- Uploaded on
- Aug 02, 2026
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Recommended current release
- Uploaded on
- Aug 02, 2026
- File
- 47.19 MB · XAPK
- Android
- Android 8.0+
- Status
- Recommended
Current latest: Sandboxx 20.40.0
Archived editorial snapshot
Sandboxx 20.40.0 archive notes
Sandboxx 20.40.0 centers on using write and send letters to recruits, tracking mailroom delivery and training progress, and adding photos, newsletters, and gift cards in a focused Android experience. People can compose letters on Android, add photos or gift cards, and have the message printed and delivered to a military mailroom. This mobile tool also offers shipment tracking, weekly training updates, military news, and supporter-focused resources. New users select whether they are supporting a recruit or preparing for military life, which personalizes the experience around their role and makes important information easier to locate. This release requires Android 8.0+.
Explore write and Send Letters to Recruits
The mobile experience changes a message written on Android into a physical letter for a recruit at basic training, boot camp, or another military address. This gives military life a practical way to use write and send letters to recruits from the same mobile workflow.
Follow Mailroom Delivery and Training Progress
Follow Mailroom Delivery and Training Progress is a central part of the app's product workflow. This gives military life a practical way to track mailroom delivery and training progress from the same mobile workflow.
Include Photos, Newsletters, and Gift Cards
Include Photos, Newsletters, and Gift Cards is a central part of the app's product workflow. This gives military life a practical way to add photos, newsletters, and gift cards from the same mobile workflow.
Version evidence
File checks for this archived build
Review package identity, VirusTotal signals, install notes, and SHA-256 for version 20.40.0.
Package
com.sandboxx.android
VirusTotal
0 / 74 flagged
Install test
Installed & launched
SHA-256
40f353931c34d247ad22611d6b494c12a448f5bb2faff12ff3463d163d29f3a5
Recorded device
Samsung Android device · Install and launch passed
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