Offline-First Studio

Record. Protect.
Share safely.

The podcast studio that works without internet, without sending your data anywhere, and helps protect your sources' identity.

Coming soon to Google Play
KIKU Studio recording interface
Source protection
"I interview whistleblowers. Their voices are pitch-shifted before the recording leaves my device. Everything runs offline — no data sent to any server."
Daniel, 35 Investigative journalist, Central America
Daniel recording interview

Built for journalists who can't trust the cloud

Noise reduction and voice anonymization run entirely on-device. No internet required for core privacy features.

Voice Anonymization

Pitch-shift voice modification to help reduce speaker recognizability. Adjustable strength — designed to protect interview sources in the field.

Pitch-shift (TD-PSOLA), pure Kotlin, no dependencies

Fully Offline

Every core feature runs entirely on your device — no cloud, no subscriptions. Transcription works offline with whisper.cpp, or via OpenAI Whisper API with your own key.

DeepFilterNet3 (Rust/JNI) + whisper.cpp (C/JNI)

No Metadata

Exported audio files contain no location, device info, or timestamps. UUID filenames prevent timing analysis.

FLAG_SECURE option for screen capture protection

Complete podcast toolkit

Record, clean, edit, transcribe, and share — all from your phone.

AI Noise Reduction

DeepFilterNet3 removes background noise on-device. One tap transforms noisy field recordings into studio quality. No cloud, no cost, no waiting.

Rust/JNI, ~20 seconds for 10 minutes of audio on midrange phones
Before Noisy audio waveform
After Clean audio waveform

Field Recording

48kHz lossless recording with real-time waveform, live audio monitor through headphones, drop markers, battery/storage warnings, and home screen widget for instant one-tap recording.

Waveform Editor

Cut, trim, undo/redo with pinch-to-zoom. Chapter markers for show notes. Non-destructive editing with 20-level undo.

Project Management

Organize recordings into episodes with multiple segments. Reorder, merge, or mix segments. Import WAV, M4A, and MP3 files.

On-device transcription

Transcription

Two options: whisper.cpp running locally on your phone (download ~75MB model once), or bring your own OpenAI API key for cloud transcription. Copy or share text directly.

On-device: whisper.cpp (C/JNI) | Cloud: OpenAI Whisper API (BYOK)

Clip & Share

Select a highlight, export as a clip, and share directly via WhatsApp, Telegram, or any app. Perfect for social media.

Double-Ender Recording

Each participant records locally. Auto-align by timestamp, mix down with smart silence compression — no call quality compromise.

Priya recording at Mumbai market
Mobile-first podcasting
"I record interviews at the local market, remove the noise with one tap, cut the best parts, and share the episode — all from my phone. No PC needed."
Priya, 32 Independent podcaster, publishes biweekly, Mumbai

Names, portraits, and quotes are fictional, created to illustrate real-world use cases. Images generated with AI.

A note on privacy

KIKU Studio is free, with no ads and no tracking. Voice anonymization uses pitch shifting, which helps reduce speaker recognizability but cannot guarantee complete anonymity — speech patterns, content, and environmental sounds may still allow identification by a determined adversary. For maximum protection, combine with device encryption and a strong lock screen.

Under the hood

Recording

  • 48kHz / 16-bit mono PCM
  • AAudio low-latency API
  • Real-time waveform display

Processing

  • DeepFilterNet3 (Rust/JNI)
  • EBU R128 normalization (-16 LUFS)
  • Energy-based VAD trimming

Privacy

  • TD-PSOLA voice anonymization
  • UUID filenames, no metadata
  • FLAG_SECURE option

Requirements

  • Android 8.0+ (API 26)
  • Recommended 4GB+ RAM
  • ~39MB app size

Everything in KIKU Studio

Recording

  • 48kHz / 16-bit lossless
  • Live audio monitor (headphones)
  • Drop markers during recording
  • Pause / resume
  • Battery & storage warnings
  • Home screen widget
  • Bluetooth mic warning

Editing & Processing

  • Waveform editor with pinch-to-zoom
  • 20-level undo / redo
  • Loop playback for review
  • AI noise reduction (DeepFilterNet3)
  • EBU R128 loudness (-16 LUFS)
  • Automatic silence trimming (VAD)
  • Chapter markers

Privacy & Security

  • Voice anonymization (pitch-shift)
  • No location / device metadata
  • UUID filenames
  • Screen security mode (FLAG_SECURE)
  • Fully offline core features
  • No ads, no tracking

Sharing & Platform

  • Clip export for social media
  • Double-ender recording & mixing
  • Project / episode management
  • WAV & M4A (AAC) export
  • English, Hindi, Indonesian UI
  • Android 8.0+

Listen with KIKU Player

Smart Speed, AI summaries, and real-time transcripts. The podcast player that helps you understand what you hear.

Learn about Player →