# DevProCo – Film Dev Timer — Analog Photography

> Analog Photography (iPhone/iPad app by Christoph Kretschmer.)

- Source: https://appshunter.io/ios/app/devproco-film-dev-timer/id6767035297 (this page in markdown: same URL + `.md`)
- Developer: [Christoph Kretschmer](https://appshunter.io/developer/1846458685)
- Category: Photo & Video, Graphics & Design
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 76 MB
- Languages: American English
- Released: 2026-06-19
- Data updated: 2026-07-07
- User reviews in markdown: https://appshunter.io/ios/app/devproco-film-dev-timer/id6767035297/reviews.md

## What is DevProCo?

DevProCo is a precise development process timer for analog photographers — whether you're developing B&W film, color negative (C-41), slide film (E-6), or darkroom prints (RA-4).

FEATURES
• Guided step-by-step development sessions with automatic agitation reminders
• Text-to-speech announces each step and agitation — keep your hands in the tank
• Hands-free voice control: say "next" to advance steps
• Automatic chemistry volume and dilution calculator
• Built-in process library with pre-configured recipes (Rodinal, DD-X, C-41, RA-4)
• Create and save your own custom processes
• Share processes with other DevProCo users via QR code
• Screen stays on during active sessions
• Supports English, German, Spanish and French

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium | $3.99 | one-time |



## Version history (last 1 release)

### 1.0.0 — 2026-06-19

No release notes.

## More apps by Christoph Kretschmer

- [Easy Light Meter](https://appshunter.io/ios/app/easy-light-meter/id6754048393)
- [TrauerKompass](https://appshunter.io/ios/app/trauerkompass/id6757883999)

All apps by Christoph Kretschmer: https://appshunter.io/developer/1846458685

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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 2026-07-07.*