Google Gemini Live Voice Assistant UI Template, Free

Building a Google Gemini Live voice assistant app? The short answer: a voice assistant is mostly feedback, the user has to feel heard, watch the words appear, and be able to interrupt, all before the answer lands. Build the UI free from a VP0 design, the free iOS design library for AI builders, clone it into your AI tool, then connect the Gemini Live API. Nail the listening state and the assistant feels alive.

Who this is for

This is for builders making a voice assistant or live-voice AI app on top of a model like Gemini Live, who want a responsive, trustworthy voice UI without paying for an AI-app kit.

What a live voice UI has to get right

Voice is invisible, so the UI does the reassuring. The listening state must be unmistakable, a live waveform or pulsing orb that reacts to the user’s voice, so they know they are heard. A real-time transcript turns sound into something they can verify. The responding state shows the assistant is working, and a one-tap interrupt lets the user cut in, which is what makes a conversation feel natural. The Apple Human Interface Guidelines cover the layout, AVAudioEngine covers capturing audio, and the Gemini API live documentation covers streaming voice.

State	Job	Get it right
Listening	Show the app hears you	Live waveform reacting to voice
Transcript	Verify what was heard	Real-time, readable
Responding	Show it is working	Clear, not a dead spinner
Interrupt	Let the user cut in	One tap, always available
Error	Recover gracefully	Honest, retryable

Build it free with a VP0 design

You do not need an AI-app kit, which can run $40 to $200. Pick a voice or AI-product screen in VP0, copy its link, and prompt your AI builder:

Build a SwiftUI voice assistant screen from this design: [paste VP0 link]. A large listening state with a live waveform that reacts to mic input, a real-time transcript below, a responding state, and a clear interrupt button. Match the palette and spacing from the reference, and generate clean code.

For neighboring AI and voice patterns, see an AI language tutor voice-chat UI clone, an AI voice cloning app UI in SwiftUI, a Google Veo text-to-video app UI template, and how to make an AI app look native on iOS.

Build the states before the API

You do not need the Gemini API to design the experience. Prototype with sample audio levels driving the waveform and a canned transcript that types out, then a fake response. Tune the listening feedback, the transcript, and the interrupt until a turn feels natural, then connect the Gemini Live API for real streaming and handle the permission, latency, and error states honestly. The microphone permission prompt matters too, so ask for it in context, right when the user taps to talk.

Common mistakes

The first mistake is a weak listening state, so users do not know they are heard. The second is no live transcript, so they cannot verify. The third is no interrupt, which makes conversation feel robotic. The fourth is asking for mic permission before the user understands why. The fifth is paying for an AI-app kit when a free VP0 design plus SwiftUI does it.

Key takeaways

• A voice assistant is mostly feedback; make the listening state unmistakable.
• Show a live transcript so users can verify what was heard.
• VP0 gives you the voice UI free, ready to build with Claude Code or Cursor.
• Prototype the states with sample audio, then connect the Gemini Live API.
• Ask for mic permission in context, right when the user taps to talk.

Frequently asked questions

How do I build a Gemini Live voice assistant app? Build the listening, transcript, responding, and interrupt states first in SwiftUI from a free VP0 design, then connect the Gemini Live API for streaming voice.

What is the best free voice assistant UI template for iOS? VP0, the free iOS design library for AI builders, lets you clone a voice screen into an AI tool that generates clean SwiftUI for the listening, transcript, and response states.

What states does a voice assistant UI need? Idle, listening with live feedback, transcribing, responding, and error. The user must always know which state they are in.

Do I need the Gemini API to start? No. Prototype the states with sample audio and a fake response, then connect the Gemini Live API once the feedback and interrupt feel right.