Tower Builder - Stack them up
v1.0.3c · 35.5 MB · code 4
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File information
UpdatedOct 9, 2025
PublishedMar 20, 2020
Packagecom.jumpalpha.towerbuilder
Versionv1.0.3c (4)
Size35.5 MB
MD50bdd624c0ca08340ada9f41ba65a7cb6
Min SDK16
ABIsx86, armeabi-v7a
Malware scanTRUSTED
Signature SHA13A:7E:52:D2:3D:EF:52:72:BE:9D:43:7F:5B:D3:8C:61:FD:A0:18:8B
SignerCN=, OU=, O=JumpAlpha, C=
Total downloads100
This version100
DeveloperJumpAlpha
Age ratingEveryone
What's new in v1.0.3c
Version 1.0.3 :
- Fixbug crash some devices
- Fixbug crash some devices
Security scan
TRUSTED
- Developer signature verified 2020-03-20
- Scanned for malware 2020-09-03 10:37:57
- Signature SHA1 3A:7E:52:D2:3D:EF:52:72:BE:9D:43:7F:5B:D3:8C:61:FD:A0:18:8B
- File MD5 0bdd624c0ca08340ada9f41ba65a7cb6
How to install Tower Builder - Stack them up v1.0.3c on Android API 16+
Takes about 2 minutes. You'll need roughly 35.5 MB of free storage.
- Grab com.jumpalpha.towerbuilder_4.apk — hit the Download button above (35.5 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches 0bdd624c0ca08340…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.jumpalpha.towerbuilder_4.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=, OU=, O=JumpAlpha, C=. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open Tower Builder - Stack them up — tap Open on the install screen, or find the Tower Builder - Stack them up icon in your app drawer (this build targets x86/armeabi-v7a devices).
Common install errors for Tower Builder - Stack them up
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android API 16 or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.
- Works on one phone but not another — this build ships x86/armeabi-v7a native code. Devices with a different CPU will reject it.