Caustic 3 v3.1.0
APK · 25.8 MB · version code 18 · Android 2.2+ · uploaded Jun 8, 2014
The source store flagged this file with a security warning (Warning). We recommend not installing it. See other versions.
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Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v3.2.2, uploaded May 21, 2026 — about 11 years after this one.
- Size: this file is 25.8 MB; the latest is 46.8 MB (21 MB larger).
- Android: this version needs Android 2.2+; the latest needs Android 11+. Use this one if your device runs an older Android release.
- The latest version asks for 1 more permission: Access all files.
- The latest version no longer asks for: Read shared storage, Modify shared storage, In-app purchases (Google Play Billing).
File information
- Version
- v3.1.0 (18)
- Uploaded
- Jun 8, 2014
- Size
- 25.8 MB
- Requires
- Android 2.2+ (API 8)
- CPU support
- x86 32-bit, ARM 32-bit
- Graphics
- OpenGL ES 2.0+
- Screen
- Small screens and larger
- MD5
- daf91d403fc2de76a7006c5046fda84a
- Signing certificate (SHA-1)
- 3A:DA:4B:21:F7:11:DA:58:B1:C7:74:34:D4:32:5B:33:ED:38:69:BE
- Signed by
- CN=Rej Poirier, OU=Android, O=SingleCellSoftware, L=Brisbane, ST=QLD, C=AU
- File name
- com-singlecellsoftware-caustic-18-6014600-daf91d403fc2de76a7006c5046fda84a.apk
- Package
- com.singlecellsoftware.caustic
- Downloads (all versions)
- 93.1K
- Age rating
- PEGI 3 · Everyone
What's new in v3.1.0
3.0.1:
Support for more .instr file formats
Allow .MID file import in demo
Fix for loading ZIP instruments
Disable mic on certain Tegra devices
Fixed occasional crash bug when deleting patterns
Improved MIDI device detection
3.0.0:
14 machine slots
6 new synth types (10 total)
8 new insert effects (16 total)
Dedicated mastering section
Live note recording
WAV / sample editor
Microphone sampling
Pattern automation
Automation editing
Note quantize toggle
Metronome
FTP file transfer
Permissions (5)
This version requests 5 permissions, 3 of them sensitive.
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
- Record audio (microphone) Sensitive android.permission.RECORD_AUDIO
- Full network access android.permission.INTERNET
- In-app purchases (Google Play Billing) com.android.vending.BILLING
Security & authenticity
Security rating: Warning
Signing certificate
- Certificate issued to “SingleCellSoftware” The developer's name — though anyone can put any name in a certificate.
- The same certificate signs apps from 3 different developers Developers normally sign only their own apps. This can mean the files were re-signed by someone else — or that one company builds or publishes apps under several names.
- Same certificate as the 2 other versions checked
Store checks
- Developer signature check failed Mar 10, 2025
- Antivirus scan passed Nov 20, 2020
- Uploaded by “oukhouma” 29 followers · uploading since 2014
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself.
How to install Caustic 3 on Android 2.2+
You'll need about 51.6 MB of free space.
- Download the APK — tap Download APK above (25.8 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap com-singlecellsoftware-caustic-18-6014600-daf91d403fc2de76a7006c5046fda84a.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be daf91d403fc2de76a7006c5046fda84a. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. The source store flagged this file with a security warning; we recommend not installing it. If Play Protect blocks it, tap Cancel. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open Caustic 3 — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 2.2+). Download it again, or pick an older version.
- “App not compatible with your device” — this build contains native code for x86 32-bit, ARM 32-bit only. Devices with other processors can't install it.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source; for this file we recommend not to.