Environmental Engineering
v4.0 · 26.3 MB · code 12
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File information
UpdatedFeb 2, 2026
PublishedSep 30, 2022
Packagein.softecks.environmentalengineering
Versionv4.0 (12)
Size26.3 MB
MD5c8cb48a056edc8b1e6048e9ec29eda33
Min SDK24
ABIsx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA1A9:B9:9D:F5:13:AA:85:D7:F9:72:0E:AD:6A:83:8D:51:85:E7:34:F4
SignerCN=Rajil Tl, OU=App development, O=Softecks, L=Mumbai, ST=Maharashtra, C=IN
Total downloads10,000
This version10,000
DeveloperSoftecks
Age ratingEveryone
What's new in v4.0
*Environmental Tools Added
*App Performance Improvements
*App Performance Improvements
Security scan
TRUSTED
- Developer signature verified 2026-02-02
- Signature SHA1 A9:B9:9D:F5:13:AA:85:D7:F9:72:0E:AD:6A:83:8D:51:85:E7:34:F4
- File MD5 c8cb48a056edc8b1e6048e9ec29eda33
How to install Environmental Engineering v4.0 on Android 7.0 Nougat+
Takes about 2 minutes. You'll need roughly 26.3 MB of free storage.
- Grab in.softecks.environmentalengineering_12.apk — hit the Download button above (26.3 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 c8cb48a056edc8b1…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find in.softecks.environmentalengineering_12.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=Rajil Tl, OU=App development, O=Softecks, L=Mumbai, ST=Maharashtra, C=IN. 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 Environmental Engineering — tap Open on the install screen, or find the Environmental Engineering icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a devices).
Common install errors for Environmental Engineering
- "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 7.0 Nougat 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/x86-64/armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.