> ## Documentation Index
> Fetch the complete documentation index at: https://docs.praxis-ai.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Chat on Mobile

> Send messages, add photos and files, run assistants, and manage your conversations in the Praxis AI mobile app.

## Introduction

Chatting in the **Praxis AI** app works like the web: you type a message, and your Digital Twin answers using its knowledge, your included files and the conversation so far. This page covers the message bar, the answers, assistants and your conversation list.

***

## The message bar

Type in the field at the bottom (**Message (twin name)...**). A message can be up to 10,000 characters. The button on the right changes with what you're doing:

| Button | When it shows | What it does |
| - | - | - |
| **↑ Send** | You've typed something | Sends your message |
| **■ Stop** | An answer is being written | Stops the answer |
| **Voice** (purple) | The field is empty | Starts a [voice conversation](https://docs.praxis-ai.com/mdx/user-guide/mobile/voice.md). Greyed out when voice isn't available to you. |

> [!TIP]
>
> To dictate a message, use the microphone on your phone's keyboard. To send with the Return key instead of starting a new line, turn on **Send with Return** in [Conversation Preferences](https://docs.praxis-ai.com/mdx/user-guide/mobile/settings.md#conversation-preferences).

### Add photos, files and assistants

Tap **+** at the left of the message bar:

| Item | What it does |
| - | - |
| **Assistants** | Opens the list of assistants. See [Assistants](#assistants). |
| **Files** | Opens your [Files](https://docs.praxis-ai.com/mdx/user-guide/mobile/files.md). The badge shows how many files are included in the conversation. |
| **Camera** | Takes a photo and adds it to the conversation |
| **Add Photos & Files** | Choose **Photo Library** (one or more photos or videos) or **Browse Files** (any document) |

A photo or file you add this way is uploaded to your personal Files, **included** in the conversation, and kept with it, so your Digital Twin can use it for this question and the follow-ups. A banner shows the progress (**Uploading**, **Processing**, **Complete**), and the conversation shows **📎 (name) added to Files and included.**

***

## Reading the answers

Answers appear as they are written, with formatting: headings, lists, tables, links and images. Some things look simpler than on the web: maths formulas and Mermaid diagrams show as their source text, and code blocks have no copy button.

| To… | Do this |
| - | - |
| **Copy** a message | Long-press it. Your phone vibrates briefly when the text is copied. |
| **Share** a dialogue | Tap the **🔗 link** icon next to its time, then pick an app from your phone's share sheet |
| **Delete** a dialogue | Swipe it left and tap **Delete**. This removes both your question and the answer. |
| Open a **source** | Tap a numbered chip in the **Sources** row under an answer |
| Jump back to the latest message | Tap the **⌄** button that appears when you scroll up |
| See older messages | Tap **Load earlier messages** at the top of a long conversation |

If something goes wrong, for example when you're out of credits, a red bar explains why. Tap its **ⓧ** to close it.

***

## Assistants

Assistants are ready-made prompts for a specific task. There are two ways to use one:

* **Switch Assistant**: tap the title at the top of the chat. The first row is your Digital Twin (**Default**), followed by its assistants.
* **+ → Assistants**: browse the full list, with **Search assistants...** and a badge for each assistant's scope (**System**, **Personal**, or the Digital Twin's name).

Picking an assistant starts a **new conversation** and runs the assistant's opening message straight away. To create or edit assistants, use the [web app](https://docs.praxis-ai.com/mdx/user-guide/assistants-personalization/assistants.md).

***

## Conversations

Open the side drawer (**☰**) to see the current Digital Twin's conversations.

| To… | Do this |
| - | - |
| Start a new chat | Tap **+** at the top of the conversation list |
| Open a conversation | Tap it |
| Rename it | Long-press it, choose **Rename**, type a name in **Conversation name**, and tap **Save**. Or tap **Rename with AI** to let your Digital Twin suggest a name from the conversation. |
| Delete it | Long-press it and choose **Delete**, or swipe it left. Deleting can't be undone. |
| Find an older one | Tap the **search** icon in the drawer. See [Search across your Digital Twins](https://docs.praxis-ai.com/mdx/user-guide/mobile/overview.md#search-across-your-digital-twins). |

Voice conversations are saved here too, once you end them.

***

## Sharing your location

If your Digital Twin's admin allows it, you can share your phone's location for more relevant, location-aware answers. Turn on **Location** in [Conversation Preferences](https://docs.praxis-ai.com/mdx/user-guide/mobile/settings.md#conversation-preferences); your phone asks for permission the first time. Turn it off there at any time.

***

## Related

> [card] [Getting Around](https://docs.praxis-ai.com/mdx/user-guide/mobile/overview.md)
>
> The chat screen, the drawer and your Digital Twins.

> [card] [Files on Mobile](https://docs.praxis-ai.com/mdx/user-guide/mobile/files.md)
>
> Choose which files your Digital Twin uses.

> [card] [Voice on Mobile](https://docs.praxis-ai.com/mdx/user-guide/mobile/voice.md)
>
> Talk instead of typing.

> [card] [Assistants](https://docs.praxis-ai.com/mdx/user-guide/assistants-personalization/assistants.md)
>
> What assistants are and how to build them.


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