Hand anchor / skeleton: ARKit API for 26-joint hand position tracking
Passthrough: stereo camera video composited with virtual content for MR
0 / 5 completed
1 / 5
The interviewer asks: "Can you explain the difference between MR, AR, and VR, and when you would choose each for a product?" Which answer best demonstrates spatial computing expertise?
Option B is the strongest: it covers the full spectrum with technical precision, explains how visionOS implements MR via passthrough (no physical mixed reality — a key misconception to correct), gives a three-part product choice framework with concrete examples, and adds the critical UX constraint (20ms latency for cybersickness prevention). Option C gives excellent visionOS-specific API mapping (shared space / mixed immersive / full immersive spectrum with specific APIs) — strong for a visionOS engineering role. Option D uses the Milgram continuum framing and adds three decision axes with hardware constraints — a strategic product perspective. Option A is accurate but surface-level. XR developer product choice framework: spectrum definition → platform implementation detail → three-axis use-case decision → hardware/UX constraints.
2 / 5
The interviewer asks: "What is an ornament in visionOS UI, and how does it differ from a window?" Which answer shows the deepest platform knowledge?
Option B is the strongest: it defines ornament with three precise technical characteristics (z-offset rendering, system positioning, use case), contrasts it with windows clearly (coordinate space, material), and adds the design rule for control placement (ornament vs. menu bar). Option C gives the UX problem-solution framing and adds practical examples (video player, 3D viewer) plus system behaviour (collision detection) — excellent for a product-focused visionOS role. Option D provides the SwiftUI API implementation detail (.ornament modifier, attachment anchor, content offset) and the important gotcha (safe area insets) — excellent for a hands-on engineering role. Option A is accurate but too brief. visionOS ornament answer: definition with characteristics → contrast with window → design rule → API implementation → practical example.
3 / 5
The interviewer asks: "How does hand tracking input work in visionOS, and what vocabulary would you use to describe it?" Which answer demonstrates the most accurate vocabulary?
Option B is the strongest: it introduces the correct term "look-and-pinch" and explains the gaze + hand decomposition, gives the precise hand skeleton model (26 joints, 60–90fps), names the specific APIs (ARKit HandAnchor, HandSkeleton), enumerates all four input modalities with correct vocabulary, and ends with a vocabulary list. Option C organises the four input modes hierarchically with clear vocabulary and adds the hover-state affordance — a practical UX point. Option D covers the accessibility vocabulary dimension (pointer control, dwell selection, input neutrality principle) — important for inclusive design. Option A is accurate but uses only partial vocabulary ("look-and-pinch" not named). visionOS hand tracking vocabulary: look-and-pinch → skeleton model with specs → API names → four input modalities → hover affordance → accessibility vocabulary.
4 / 5
The interviewer asks: "How would you explain the visionOS architecture to a hiring manager who is not an XR developer?" Which answer best demonstrates communication clarity?
Option B is the strongest for a non-technical hiring manager: it starts with a spatial analogy ("the screen is the room"), explains the interaction model (look-and-pinch as mouse+keyboard replacement), correctly addresses the business concern (existing iOS skills reusable, App Store distribution, privacy model), and frames the opportunity in organisational terms. Option C is more concise — one-sentence architecture with the key business implication — excellent for an executive summary. Option D pivots to the business use case (productivity, multi-display, SharePlay) — strongest for a hiring manager interested in the product opportunity rather than the architecture. Option A is too technical and too brief for a non-technical audience. Non-technical explanation criteria: spatial analogy → interaction model → existing skill reuse → organisational/business implication.
5 / 5
The interviewer asks: "What are the key trade-offs when choosing between room-scale and windowed experiences in visionOS?" Which answer is most technically complete?
Option B is the strongest: it organises the trade-off along four named axes (immersion, physical space, user comfort/session length, social presence), correctly identifies the exclusive nature of immersive space (other apps disappear), notes the cybersickness risk as a session-length constraint, covers the collaboration/isolation social dimension, and adds technical implementation details (ARKit availability, ImmersiveSpaceResult lifecycle). Option C maps the API structure precisely (Shared Space vs. ImmersiveSpace) with correct technical constraints (compositor control, ARKit availability) and adds the important enterprise safety argument for avoiding full immersion in shared offices. Option D gives the practical use-case to architecture mapping (game → full immersive, productivity → shared space, spatial viz → mixed) and covers API decision (openImmersiveSpace, immersion styles, graceful dismissal). Option A is too brief and inaccurate ("windowed = 2D" is only partially true). XR trade-off answer: four named axes → immersive space exclusivity → comfort/cybersickness → social presence → API lifecycle.
What does "XR / visionOS Developer Interview Questions — coderslingo.com" cover?
Practise English for XR and visionOS Developer interviews. 5 exercises on spatial computing vocabulary, MR vs AR vs VR trade-offs, visionOS UI patterns, and hand tracking.
How many questions are in this interview set?
This set has 5 exercises, each with a full explanation.
Is this exercise free to use?
Yes. Every exercise on CoderSlingo, including this one, is free to use with no account, sign-up, or paywall.
Do these exercises include model answers?
Yes. Each interview question gives you several possible responses and asks you to pick the one that communicates most clearly and completely — the explanation then breaks down exactly why that answer works, including the specific vocabulary a strong candidate would use.
What if I choose an answer that isn't the strongest one?
You'll see which option was correct and read a full explanation of why it's stronger than the alternatives, plus the key vocabulary and phrasing worth reusing in a real interview.
Can I retry the questions?
Yes — use the "Try again" button on the results screen to reset and go through the set again.
Is this the same as a real technical or behavioural interview?
No — it's focused practice for the language side of interviewing: recognising which phrasing sounds precise and confident versus vague, and knowing the vocabulary interviewers expect for this role. It won't replace mock interviews, but it builds the vocabulary you'll need in one.
Where can I find interview prep for other roles?
Browse the full Interview exercises hub for 170+ modules covering behavioural, technical, and system design rounds across dozens of IT roles, or check the "Next up" link below to continue.
Do I need an account, and is my progress saved?
No account is needed. Progress is tracked only for your current visit — reloading or leaving the page resets the counter.
Who writes these interview questions?
Every question is written by the CoderSlingo team based on real technical interview patterns for this role, then reviewed for accuracy and clarity.