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

# iPhone and iPad

> Install Holos Capture on iPhone or iPad, record your first capture, and upload it.

Holos Capture runs on iPhone and iPad as well as Apple Vision Pro. Every capture uploads to your organization on the Holos dashboard, where you can review it in the 3D capture viewer and [export it as HDF5](https://docs.holos.io/dashboard/captures/hdf5-export.md).

## Requirements

* iPhone or iPad running iOS or iPadOS 18 or later
* A Holos account in an organization that has Capture
* For audio and on-device transcription: iOS or iPadOS 26 or later
* For 3D hands and depth: an iPhone or iPad with LiDAR (Pro models)
* For object tracking in Spatial: iOS or iPadOS 27

## Install

Holos Capture for iPhone and iPad is available through TestFlight.

1. Install **TestFlight** from the App Store
2. Open the invitation from Holos (by email or link) and tap **Accept**
3. Tap **Install** next to Holos Capture

## Sign in

1. Open Holos Capture and enter your work email, then tap **Continue**, or tap **Continue with Google**
2. If you used email, open the sign-in link we send you on the same device
3. Choose your organization if you belong to more than one

The app asks for **Camera**, **Microphone**, **Motion**, **Speech Recognition** and **Location** access. Allow all of them so a capture records every stream. You can change them later in **Settings → Privacy & Security**.

## Capture modes

The home screen offers three modes. Each one starts only what it needs.

| Mode | What it records |
| - | - |
| **Photo** | A single still. It appears on the dashboard as soon as it uploads, ready for people and pose analysis. |
| **Video** | Video from the back or front camera, or both at once, with audio and motion. Switch lenses (0.5×, 1×, telephoto) with the zoom toggle. |
| **Spatial** | The world-tracked capture: back-camera video with the phone's position in the room, hands, motion, depth and tracked objects. Use it for anything you want in 3D or as robot-learning data. |

## What a Spatial capture records

All streams share one clock, so they line up frame for frame in the viewer and in the HDF5 export.

| Stream | Details | File in the capture |
| - | - | - |
| Video | Back camera | `video/camera_back.mov` |
| Audio and transcript | Microphone audio, transcribed on the device (iOS or iPadOS 26 or later) | `audio/` |
| Device pose | The camera's position and orientation for every frame, in metres, with the floor at height 0 | `tracking/device_pose.csv` |
| Hands, 2D | 21 landmarks per hand, normalized to the video frame, with a confidence per joint | `tracking/hand_pose_2d.csv` |
| Hands, 3D | The same 21 joints as points in the room, fitted to standard bone lengths (LiDAR devices) | `tracking/hand_pose_3d.csv` |
| Motion | Acceleration and rotation rate at 100 Hz | `tracking/imu.csv` |
| Depth | One 16-bit depth image per frame in millimetres at about 30 frames a second, with a confidence map (LiDAR devices, Holos Capture 1.1.6 or later) | `tracking/depth/` |
| Camera intrinsics | The colour camera's intrinsics, written once per recording (Holos Capture 1.1.6 or later) | `metadata/camera_intrinsics.json` |
| Tracked objects | The pose of each reference object you selected (iOS or iPadOS 27) | `tracking/object_pose.csv` |

## Record a Spatial capture

1. Tap **Spatial**. The app finds the floor on its own: the record button spins while on-screen guidance asks you to point the camera at the floor, then becomes the record button.
2. Optionally tap the objects button to choose [tracked objects](https://docs.holos.io/capture/tracked-objects.md).
3. Tap the red record button to start and tap it again to stop. Orientation stays locked to how you held the phone for the whole take.

> [!TIP]
>
> To rebuild the space as a 3D environment on the dashboard, walk slowly around the area in one take, keep about half of each view overlapping the last, and keep people out of the shot. To record work at a station, mount the phone on a tripod or neck mount and narrate each step out loud: steps are extracted from what you say.

## Upload

With **Confirm Before Upload** on (the default), the app shows each capture when you stop so you can keep or discard it. Keep it to upload: a progress bar runs, the panel shows **Uploaded**, and the camera comes back.

The capture then appears in [Captures](https://app.holos.io/captures) on the dashboard. It shows as **Processing** while it is prepared for the viewer, then **Completed**.

## Settings

Open Settings from the account menu.

* **Photo**: resolution, format (JPEG by default) and default zoom
* **Video**: recording quality, bitrate, default zoom and stabilization (on by default). On iPhone 17 and later, **Front Full-Sensor Camera** uses the front Ultra Wide sensor for a wider frame, or **Front Center Stage** keeps people framed instead.
* **Countdown**: an optional 3-2-1 pre-roll for Video and Spatial
* **Confirm Before Upload**: keep or discard each capture before it uploads


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