# Phonochrome — Digital B&W darkroom negative

> Digital B&W darkroom negative (iPhone/iPad app by Christoph Hoehmann.)

- Source: https://appshunter.io/ios/app/phonochrome/id6755740234 (this page in markdown: same URL + `.md`)
- Developer: [Christoph Hoehmann](https://appshunter.io/developer/1855991632)
- Category: Photo & Video, Utilities
- Price: $9.99
- Age rating: 4+
- Requires: iOS 16.6 · 1 MB
- Languages: English
- Released: 2025-12-16
- Data updated: 2026-06-20
- User reviews in markdown: https://appshunter.io/ios/app/phonochrome/id6755740234/reviews.md

## What is Phonochrome?

Phonochrome turns the photos on your iPhone into mirrored black-and-white negatives for your darkroom enlarger and offers unique timing tools – known from your analogue darkroom workflow.

Load any photo and the app immediately converts it into a monochrome, mirrored negative on your screen. From there, you fine-tune it for analogue printing. Then place your iPhone in the enlarger where the negative carrier normally sits and expose real silver-gelatin paper using your existing lens, column, and easel.

Features:

- Automatically converts photos into mirrored black-and-white negatives ready to enlarge in an analogue darkroom process
- Maximum screen brightness locked for consistent, repeatable exposures
- Adjustment controls for exposure, contrast, highlights, and shadows
- Optional grain overlay for a film-like texture
- Test strip assistant with adjustable time per segment and base exposure
- Final exposure assistant and timer
- Audio metronome for manual exposures


## Version history (last 2 releases)

### 1.3(3) — 2026-06-11

In the new version, the exposure process can only be stopped with an upward swipe and can no longer be interrupted by a simple tap as in previous versions. Additionally, the Home Indicator automatically fades out after a few seconds.

### 1.2 (6) — 2025-12-16

No release notes.

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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 2026-06-20.*