# Spokestack Studio — Open source voice interfaces

> Educational app for learning about voice interfaces and NLP. (iPhone/iPad app by Pylon ai, Inc..)

- Source: https://appshunter.io/ios/app/spokestack-studio/id1508393980 (this page in markdown: same URL + `.md`)
- Developer: [Pylon ai, Inc.](https://appshunter.io/developer/1185202559)
- Category: Education, Developer Tools
- Price: Free
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 13.0 · 67 MB
- Languages: English
- Released: 2020-06-03
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/spokestack-studio/id1508393980/reviews.md

## What is Spokestack Studio?

Learn about voice interfaces and natural language processing (NLP) with Spokestack. This educational resource includes explorations of four different ways of adding voice to a mobile app.

Studio showcases the following NLP features:

Wake Word - See how speaking a custom word can wake up your app and make it start listening for commands.

Speech Recognition - Learn how a mobile app can hear your words and transcribe them to text. Experiment with speech recognition by pushing a button letting the app convert what you say to text.

Voice Transfer - Combine speech recognition with text-to-speech to experience how an app can talk to you. Speak to the app and hear your words repeated in a different voice.

Intent Understanding - Experiment with the basics of natural language processing. Studio lets you load an on-device natural language understanding model to experience how it converts what you say to an intent.

Voice App - Experience a smart-speaker style voice app on a mobile device.

## Key features

- Wake Word detection
- Speech Recognition (Speech-to-Text)
- Voice Transfer (Speech-to-Text & Text-to-Speech)
- Intent Understanding (NLP)
- Smart-speaker style voice app simulation


## Frequently asked questions about Spokestack Studio

### What is Spokestack Studio?

Spokestack Studio is an educational application designed to teach users about voice interfaces and natural language processing (NLP). It showcases features like wake word detection, speech recognition, voice transfer, and intent understanding.

### What learning methodology does Spokestack Studio use?

Spokestack Studio employs an experiential learning approach, allowing users to directly interact with and experiment with various voice interface and NLP features. This hands-on method helps users understand how these technologies function within a mobile application.

### How does Spokestack Studio track user progress?

Spokestack Studio focuses on demonstrating specific features rather than formal progress tracking. Users can explore each module at their own pace to learn about wake word detection, speech recognition, voice transfer, and intent understanding.

### Does Spokestack Studio offer certifications?

Spokestack Studio is an educational resource for learning about voice interfaces and NLP. It does not currently offer formal certifications upon completion of its modules.

### What devices is Spokestack Studio available on?

Spokestack Studio is available on iPhone, iPad, and iPod devices. It is designed to run on Apple's iOS ecosystem.

### Is Spokestack Studio free to use?

Yes, Spokestack Studio is completely free to download and use. There are no in-app purchases or subscription fees associated with this educational application.

### How often is Spokestack Studio updated?

Spokestack Studio was last updated on June 8, 2020, with version 1.1.1. The initial release date was June 3, 2020, indicating a relatively recent but not highly frequent update schedule.

### What is the age rating for Spokestack Studio?

Spokestack Studio has an age rating of 4+. This indicates that the content is generally suitable for children and adults, with no mature themes present.

## Version history (last 3 releases)

### 1.1.1 — 2020-06-08

Fixed order of the tutorials.

### 1.1.0 — 2020-06-06

See how the voice user interface components of a phone can be used run an Alexa skill.

### 1.0.0 — 2020-06-03

No release notes.

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## More apps by Pylon ai, Inc.

- [Get the Bartender](https://appshunter.io/ios/app/get-the-bartender/id1530425843)
- [Worbler ai](https://appshunter.io/ios/app/worbler-ai/id1601684407)

All apps by Pylon ai, Inc.: https://appshunter.io/developer/1185202559

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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 2026-06-10.*