
DisparaTimer
F-Stop Enlarger Timer
Free · Designed for iPad
DisparaTimer is a mobile app that, when connected to a Raspberry Pico W/WH, can control the exposure time of a photographic enlarger using a power relay. The physical setup is inexpensive and easy to assemble.
DisparaTimer has two operation modes. The first is a traditional timer mode, where you set a specific time for each exposure. The second is designed for creating test strips with constant fractional step increments over a base time.
On iPad (iPadOS 17 and later), DisparaTimer includes a landscape-only notes panel that lets you add photos or images of your test strips and make handwritten or visual annotations directly on them.
Ratings & Reviews
This app has not received enough ratings or reviews to display an overview.
This update brings a brand-new Notes system to the iPad! A dedicated place to write down your workflow and keep everything together with your timings. Here’s what’s new:
Notes system (new):
• Added a full Notes panel inside the app.
• Create, rename, and manage multiple notes.
Image annotations (new):
• Added a built-in photo annotation system.
• Works with both finger and Apple Pencil.
• Includes a clear annotations option to start over anytime.
Export (new):
• Added an option to export and share your notes.
• PDF export, ready to save to Files or share via AirDrop/Mail.
Si me dices el nombre exacto que usas en la app para esa sección (“Notas”, “Cuaderno”, “Darkroom Notes”, etc.), te lo ajusto para que suene todavía más “marca DisparaTimer/Color Timer”.
The developer, Angel David Rodriguez, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Angel David Rodriguez
- Size
- 2.1 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 15.5 or later.
- iPhone
Requires iOS 15.5 or later. - iPad
Requires iPadOS 15.5 or later. - iPod touch
Requires iOS 15.5 or later. - Mac
Requires macOS 12.4 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English and Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2025 Ángel David Rodríguez