offline ai processing

On-Device AI: TTS, STT & Chat

Run powerful AI models locally on Apple devices to ensure total privacy and offline access while automating workflows with integrated web search and IM tools.

Free plan available

$3.99/mo

On-Device AI: TTS, STT & Chat screenshot

About On-Device AI: TTS, STT & Chat

On-Device AI: TTS, STT & Chat is a comprehensive local artificial intelligence suite designed for the Apple ecosystem, including iPhone, iPad, Mac, and Vision Pro. Unlike standard AI assistants that rely on cloud servers, this tool prioritizes privacy by executing large language models (LLMs) directly on the user's hardware. It supports a variety of leading open-source models such as Llama, Gemma, and DeepSeek, allowing users to engage in text-based chat, visual analysis, and voice-to-text transcription without ever sending sensitive data to external servers. This architecture makes it an ideal choice for users working with confidential information or those requiring AI assistance in environments without stable internet connectivity. The application offers a multi-layered feature set that extends beyond simple chat. It includes advanced Chat Flows for managing multiple contexts and AI Teams where specialized agents collaborate on complex tasks. For power users, the tool integrates Active Tools like web search and a calculator to provide real-time data and precision. On macOS, the app introduces IM connectivity, enabling users to bridge their local AI with platforms like Discord, Slack, and Telegram to automate replies and manage conversations. The suite is rounded out by a high-performance speech-to-text engine and natural-sounding voice generation using the Kokoro engine, all optimized for Apple Silicon through the MLX and Llama.cpp frameworks. This tool is specifically tailored for privacy-conscious professionals, researchers, and developers who require a secure, local-first AI workspace. Developers can leverage the app's deep integration with Apple Shortcuts and Siri to create custom automated workflows, while content creators can use the vision and transcription features to process media locally. It is also well-suited for users with high-performance Apple hardware, such as M-series Macs or the latest iPhones, who want to maximize their device's processing power. The inclusion of cloud provider support for OpenAI and Anthropic ensures that users can still access massive models when local resources are insufficient for a particular task.

On-Device AI: TTS, STT & Chat pros & cons

Pros

  • Supports leading open-source models like Llama, Gemma, and Phi locally
  • No data collection ensures absolute privacy for sensitive workflows
  • Deep integration with Apple ecosystem including Siri and Shortcuts
  • Ability to automate replies on Slack, Discord, and Telegram for Mac users
  • Provides offline access to AI features without requiring a subscription

Cons

  • Intensive processing can cause older devices to overheat during use
  • Local performance is heavily dependent on the device's RAM and chip capabilities
  • App size is large at 1.7 GB excluding additional model downloads
  • IM connectivity features are currently limited to the Mac version

On-Device AI: TTS, STT & Chat use cases

  • Privacy-focused researchers can analyze sensitive documents locally without risking data leaks to cloud providers.
  • Developers can build complex automation workflows by triggering local AI models through Apple Shortcuts.
  • Mac users can automate their community management by connecting the AI to Discord or Slack to handle repetitive queries.
  • Students can use the offline speech-to-text and translation features for lectures in environments without Wi-Fi.
  • Creative writers can organize complex story contexts using multi-flow chat management and specialized AI teams.

On-Device AI: TTS, STT & Chat features

  • text-to-speech (tts)
  • web search tool
  • speech-to-text (stt)
  • local llm execution
  • apple shortcuts integration
  • vision model support
  • multi-agent ai teams
  • im connectivity (mac)

On-Device AI: TTS, STT & Chat pricing

Is On-Device AI: TTS, STT & Chat free? Yes, On-Device AI: TTS, STT & Chat has a free plan, and paid plans start at $3.99 / month.

Free

Free

  • Local model execution
  • Basic speech-to-text
  • Offline chat capabilities
  • Apple Silicon optimization
  • Siri and Shortcuts support

Pro Member Subscription

$3.99 / month

  • Web search tool
  • Advanced chat flows
  • IM connectivity (Mac)
  • Automated IM replies
  • Multi-agent team templates

Lifetime Pro Member

$44.99 / one-time

  • All Pro features included
  • One-time payment
  • Lifetime access
  • Priority tool access
  • Advanced speech engine

On-Device AI: TTS, STT & Chat FAQs

Which local AI models are supported by the app?

The app supports several leading open-source models including Llama, Gemma, Phi, Qwen, and DeepSeek. These models are optimized for Apple Silicon using MLX and Llama.cpp engines for maximum performance.

Does the app require an internet connection to work?

No, the core chat and processing features work 100% offline for local models. Internet access is only required for initial model downloads, cloud provider connections, or the integrated web search tool.

What are 'Active Tools' within the chat interface?

Active Tools allow your AI agents to perform specific tasks beyond conversation, such as conducting real-time Web Searches or using a Calculator for precise mathematical operations.

How does IM Connectivity work on the Mac version?

The Mac app can connect directly to Discord, Slack, and Telegram. This allows you to automate replies and manage your communications using your local AI context without leaving the application.

What hardware do I need to run this app effectively?

You need an iPhone or iPad with an A12 Bionic chip or later running iOS/iPadOS 17.0+. While it runs on older supported devices, larger 8B models perform best on hardware with more RAM, like M-series iPads or Macs.

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