# Voice Lab: STT, TTS & More — Offline speech on device

> Offline speech on device (iPhone/iPad app by Felix Luca Krebs.)

- Source: https://appshunter.io/ios/app/voice-lab-stt-tts-and-more/id6761100598 (this page in markdown: same URL + `.md`)
- Developer: [Felix Luca Krebs](https://appshunter.io/developer/1887788597)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.1 · 129 MB
- Languages: American English, German (Germany), Korean, Chinese (Simplified, China), European Spanish, Vietnamese
- Released: 2026-08-30
- Data updated: 2026-09-11
- User reviews in markdown: https://appshunter.io/ios/app/voice-lab-stt-tts-and-more/id6761100598/reviews.md

## What is Voice Lab?

Voice Lab: STT, TTS & More is your offline voice studio on iPhone and iPad. Transcribe speech, generate natural voices, and work with audio on your device—without sending recordings to the cloud.

Voice tools in one app • Speech-to-text — Turn recordings and live audio into text, fully offline
• Text-to-speech — Hear any text in natural-sounding voices
• Translation — Translate spoken audio on device
• Punctuation — Add commas, periods, and more to plain text with on-device AI
• Subtitles — Generate timed subtitles from audio and a transcript
• Speech enhancement — Reduce noise and clean up recordings
• Voice cloning — Generate speech that matches a reference voice you own or have permission to use
• Voice activity detection — Find where speech starts and stops
• Download manager — Add larger, more accurate models when you need them
• Built for speed — Apple Silicon acceleration on iPhone and iPad via Core ML where supported.

Made for real use
Whether you’re capturing ideas on the go, prepping content, or just prefer tools that work without Wi‑Fi — Voice Lab keeps speech processing local, fast, and under your control.

Free to start. Pro when you need more
Generous free limits for everyday use. Upgrade for unlimited usage, ad-free experience, and pro export formats.

A note on models
Results depend on the model and device you use. You pick the balance of speed, size, and quality.

Who it’s for
• Creators and power users who need practical audio utilities on the go
• Privacy‑conscious users who want offline speech tools
• Developers and researchers exploring on-device speech pipelines

Privacy & transparency
• Local‑first: Processing runs on your device by default
• No account required: Get started immediately without sign‑in
• You stay in control: Sharing/export only happens when you explicitly choose it
• Speech processing stays on your device; optional model downloads, subscriptions, and the free tier (with ads) use the internet
• Anonymous usage limits may sync to enforce free-tier quotas. Details in our Privacy Policy

Legal
Privacy Policy: https://xdcobra.github.io/voice-lab-offline-tools/privacy-policy.html
Terms of Use: https://xdcobra.github.io/voice-lab-offline-tools/terms-of-use.html
Licensed Application EULA (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Voice Lab Pro (auto-renewable subscription): billed through your Apple ID; renews unless cancelled at least 24 hours before period end; manage in Settings → Apple ID → Subscriptions.
Built with open-source technology (MIT): github.com/XDcobra/react-native-sherpa-onnx

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Offline AI Voice Toolkit Pro | $2.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Offline AI Voice Toolkit Lifetime | $11.99 | one-time |



## Version history (last 2 releases)

### 0.1.0 — 2026-09-01

• Smoother Home and tab switching
• Clearer recommended model names: focused on speed and quality, not jargon
• Recommended models stay easy to find, with clearer download status
• Polished full-screen layout on supported devices
• Localization and UI refinements across languages
• Stability and performance improvements

### 0.0.5 — 2026-08-30

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-11.*