# Quartet — Compare focal lengths, live

> Compare focal lengths, live (iPhone/iPad app by KUAN HUANG.)

- Source: https://appshunter.io/ios/app/quartet/id6786406036 (this page in markdown: same URL + `.md`)
- Developer: [KUAN HUANG](https://appshunter.io/developer/6783854163)
- Category: Reference, Photo & Video
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English, Chinese (Traditional, Taiwan)
- Released: 2026-07-07
- Data updated: 2026-08-15
- User reviews in markdown: https://appshunter.io/ios/app/quartet/id6786406036/reviews.md

## What is Quartet?

14mm — Wide. Landscape drama, cinematic space.
35mm — Street. The classic reportage frame, natural and honest.
50mm — Standard. The human-eye view, no distortion.
85mm — Portrait. Compressed space and beautiful subject separation.


HOW IT WORKS
- A clean 2:3 viewfinder with Leica-style frame lines, so you compose deliberately.
- Every shot is a real capture from a real lens — never a digital crop faked from one photo.
- A focal length key is printed on every export: 14 WIDE · 35 STREET · 50 STANDARD · 85 PORTRAIT.

SHARE OR STUDY
- Story — a 9:16 contact sheet for Stories.
- Feed — a clean 2:3 grid.
- Save the composed frame to your photo library for reference or class material.

Quartet works best on iPhone models with multiple rear cameras (iPhone 12 and later recommended) for true optical framing across all four focal lengths.

Made by 2B Studio.


## Version history (last 4 releases)

### 1.3 — 2026-08-12

Quartet is one of a small line of tools from 2B Studio in London. You can now find our other apps under Settings → Made by 2B Studio.

### 1.2 — 2026-08-04

Quartet is one of a small line of tools from 2B Studio in London. You can now find our other apps under Settings → Made by 2B Studio.

### 1.1 — 2026-07-14

Export originals — long-press Save or tap the arrow to 
export the four captures as separate photos with full EXIF 
(focal length, aperture, shutter, ISO, timestamp) at native 
4:3 resolution.

Focal length descriptions during capture, enabled in Settings.

Refined interface, small polish and stability improvements 
throughout.

Made by 2B Studio.

### 1.0 — 2026-07-08

No release notes.

## More apps by KUAN HUANG

- [Second Guess](https://appshunter.io/ios/app/second-guess/id6788762420)
- [Half Frame](https://appshunter.io/ios/app/half-frame/id6795586926)

All apps by KUAN HUANG: https://appshunter.io/developer/6783854163

## Related topics

[quartet](https://appshunter.io/ios/topics/quartet)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-15.*