Tetra Aquatics
v6.1.0 · 79.2 MB · code 206101
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File information
UpdatedMar 12, 2026
PublishedMar 14, 2021
Packagede.dieetagen.tetrawatertest
Versionv6.1.0 (206101)
Size79.2 MB
MD53157320e26c7bea528c33fc966830e21
Min SDK23
ABIsarm64-v8a
Malware scanTRUSTED
Signature SHA1A1:56:A6:98:95:B2:B5:A4:F1:2A:6C:E6:0C:05:FB:4E:53:92:F7:55
SignerCN=MIchael K?hne, O=Die Etagen GmbH
Total downloads100,000
This version100,000
DeveloperTetra GmbH
Age ratingEveryone
What's new in v6.1.0
Bug fixes and performance improvements.
Security scan
TRUSTED
- Developer signature verified 2026-03-12
- Signature SHA1 A1:56:A6:98:95:B2:B5:A4:F1:2A:6C:E6:0C:05:FB:4E:53:92:F7:55
- File MD5 3157320e26c7bea528c33fc966830e21
How to install Tetra Aquatics v6.1.0 on Android 6.0 Marshmallow+
Takes about 2 minutes. You'll need roughly 79.2 MB of free storage.
- Grab de.dieetagen.tetrawatertest_206101.apk — hit the Download button above (79.2 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 3157320e26c7bea5…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find de.dieetagen.tetrawatertest_206101.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=MIchael K?hne, O=Die Etagen GmbH. 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 Tetra Aquatics — tap Open on the install screen, or find the Tetra Aquatics icon in your app drawer (this build targets arm64-v8a devices).
Common install errors for Tetra Aquatics
- "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 6.0 Marshmallow 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 arm64-v8a native code. Devices with a different CPU will reject it.