# PaperDeveloper — Darkroom paper developer timer

> Darkroom paper developer timer (iPhone/iPad app by Jan Kalina.)

- Source: https://appshunter.io/ios/app/paperdeveloper/id6793847980 (this page in markdown: same URL + `.md`)
- Developer: [Jan Kalina](https://appshunter.io/developer/6793847982)
- Category: Photo & Video
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 2 MB
- Languages: American English
- Released: 2026-08-04
- Data updated: 2026-10-07
- User reviews in markdown: https://appshunter.io/ios/app/paperdeveloper/id6793847980/reviews.md

## What is PaperDeveloper?

PaperDeveloper is a precise darkroom timer for the full wet process of photographic paper.

Set your paper, chemistry, dilution, temperature and volumes. The app sets accurate times based on manufacturer data. The built-in timer guides you through every step — developer, stop bath, fixer, wash, and optional toning.

Track multiple papers and test strips at once, and save quick presets.

KEY FEATURES
• Timing for the full B&W paper wet process
• Papers, chemistry, dilutions and temperatures
• Multiple runs at once (paper + test strip)
• Presets for quick setup
• Chemical capacity / yield tracking
• Red UI for darkroom use
• Works offline — no account, no cloud

Currently the app includes manufacturer materials from FOMA. In a future version we will add materials from manufacturers such as Ilford and ADOX.

Important: the red interface helps in the darkroom, but PaperDeveloper is not a certified safelight. Please keep that in mind.

Enlarge — don’t scan!


## Version history (last 1 release)

### 1.0 — 2026-08-04

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 2026-10-07.*