Ruta Meter: Film Light Meter
See exposure across the frame
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
See exposure across the whole frame. Start free with visual 9- or 24-area metering, then unlock precision maps and film tools with one lifetime Pro purchase.
See the light across your frame before you press the shutter. Ruta Meter turns the iPhone camera into a visual light meter made for film photography.
Start free with a clear 9- or 24-area exposure map. Choose your film and EI, compare different parts of the scene, hold a reading and keep the exposure settings with your photograph.
INCLUDED FREE — NO PURCHASE REQUIRED
• Live 9- or 24-area exposure map
• Average and spot metering
• ISO, aperture and shutter controls
• Built-in film profiles and basic custom films
• Hold a reading and add handwritten notes
• Save one meter report each day, with optional GPS
• Transfer that daily report locally to Ruta Foto
RUTA METER PRO — ONE-TIME PURCHASE
One purchase unlocks every Pro feature for lifetime access. There is no subscription.
• Precision maps with 70 or 140 measurement areas
• Film Range Guide
• Advanced custom film range and reciprocity data
• Reciprocity correction for supported film profiles
• ND filter compensation
• Long-exposure timer
• Named calibration profiles
• Unlimited saved reports and Ruta Foto transfers
HOW IT WORKS
1. Choose your film and metering EI.
2. Point the iPhone at the scene.
3. Read the exposure differences across the frame.
4. Set or lock aperture and shutter speed.
5. Hold, annotate and save the reading when you are ready.
WORKS WITH RUTA FOTO
Ruta Meter measures light. Ruta Foto organizes photographs, places and photographic ideas. Each app works independently.
The local connection is included with Ruta Meter Free for its daily saved report. Pro adds unlimited reports and transfers. Ruta Foto must be installed to receive them. Buying Ruta Meter Pro does not purchase or unlock paid Ruta Foto features.
Camera permission is required for live metering. Location is optional when saving a GPS report. No Ruta account is required.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Added a gentle rating request that appears only after several successful uses.
• Updated the App Store screenshots and description to explain the Free and Pro tools more clearly.
The developer, ADRIA SALVADO COLOMA, 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
- Seller
- ADRIA SALVADO COLOMA
- Size
- 3.1 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Ruta Meter Pro $5.99
- Copyright
- © 2026 Adrià Salvadó Coloma