Trevni: Film Negative Inverter

Name: Trevni: Film Negative Inverter
Price: 2.99 USD
Rating: 3 (2 reviews)
Author: James Moore

Convert film negatives

Only for iPhone

$2.99

2 Ratings
Age Rating

4+
Years
Category

Photo & Video
Developer

James Moore
Language

EN
+ 4 More
Size

3.8
MB

iPhone

Convert film negatives with speed and precision. Presets and fine control designed for real analog workflows. Trevni: Film Negative Converter Whether you’re digitizing old family negatives or working with your latest rolls, Trevni converts previously photographed or scanned film negatives from your photo library into true-to-life images. No curves or levels required. One-touch conversion: • Instantly convert C-41 color and black & white film negatives • Automatically removes the orange mask from color film • Preserves original image quality and metadata • Works with photographed or scanned negatives Presets & fine-tune control: • Built-in presets for fast, reliable starting points • Create and save your own custom adjustment presets • Sample areas for precise color or tonal accuracy • Adjust temperature, tint, exposure, contrast, and saturation • Tailored specifically to analog workflows and film characteristics Fast, intuitive workflow: • Import a negative from your Camera Roll • Choose color or black & white film • Sample, adjust, and export your final image • Ready to share, archive, or print Compatible workflows: • iPhone captures (light table or backlight) • Digital camera scans • Flatbed scanner files Perfect for: • Film photographers • Analog photography enthusiasts • Students and educators • Image restoration and digital archiving Designed by a film photographer, for film photographers Trevni focuses on faithful conversion, not gimmicks. Giving you clean, natural results while staying out of the way of your creative process.

Ratings & Reviews

3.0

out of 5

2 Ratings

Great lightroom alternative
Aug 20
Hshahdbenalflviens
Awesome minimal app for inverting negatives. I only do B&W and I'm surprised at how often the auto-sample feature gives me a solid result close to what I would choose manually. Does it have all the granular controls of LR? Of course not, but I'm not a professional and this is absolutely good enough. Plus I'm not giving adobe my money!A couple features that would be nice in the future:- Bulk or Queued editing (select a bunch of pics and then either auto-sample them all or go one by one, edit & save and then automatically load up the next pic)- Better "save" workflow. Right now you hit save, then save again. Would be nice if I could have it default to "save to camera roll"- sampling reticule - I understand why the crosshair lands directly under your fingertip, but I'd prefer to "grab" the outer edge of the circle so I can actually see where the reticule is without my fingertip covering it. Just a nitpicky thing.Great work!

Developer Response
Thank you! This is fantastic feedback. My original objective was to make negative conversion quick and straightforward without requiring a huge editing workflow, so it’s great to hear that auto-sample is working well for you.I really like your suggestions too, particularly the edit/save/advance workflow and the sampling reticule. Making it easier to work through a whole roll is something I’m very interested in improving.Thanks again for taking the time to write such a thoughtful review. JimUPDATE 3 September 2026: I’ve completely reworked the save functionality which now allows you to directly save in a variety of formats.
Great lightroom alternative
Aug 20
Hshahdbenalflviens

Awesome minimal app for inverting negatives. I only do B&W and I'm surprised at how often the auto-sample feature gives me a solid result close to what I would choose manually. Does it have all the granular controls of LR? Of course not, but I'm not a professional and this is absolutely good enough. Plus I'm not giving adobe my money!A couple features that would be nice in the future:- Bulk or Queued editing (select a bunch of pics and then either auto-sample them all or go one by one, edit & save and then automatically load up the next pic)- Better "save" workflow. Right now you hit save, then save again. Would be nice if I could have it default to "save to camera roll"- sampling reticule - I understand why the crosshair lands directly under your fingertip, but I'd prefer to "grab" the outer edge of the circle so I can actually see where the reticule is without my fingertip covering it. Just a nitpicky thing.Great work!
Developer Response Sep 5
Thank you! This is fantastic feedback. My original objective was to make negative conversion quick and straightforward without requiring a huge editing workflow, so it’s great to hear that auto-sample is working well for you.I really like your suggestions too, particularly the edit/save/advance workflow and the sampling reticule. Making it easier to work through a whole roll is something I’m very interested in improving.Thanks again for taking the time to write such a thoughtful review. JimUPDATE 3 September 2026: I’ve completely reworked the save functionality which now allows you to directly save in a variety of formats.
App not working!
Jul 7
Ggggggggggggghdgvyvjj
I tried loaded negative photos and wouldn’t work.

Developer Response
Thanks for your feedback, and I’m sorry the app didn’t work as expected. I’d really like to help. If you can get in touch via the support link in the App Store and let me know what type of negative you were using (or send a sample image), I’ll investigate straight away. Your feedback helps make Trevni betterUpdate (2/9/26): I’ve identified and fixed an issue affecting some RAW workflows. The latest version now properly loads and develops various RAW formats at full resolution, including DNG and ProRAW.
App not working!
Jul 7
Ggggggggggggghdgvyvjj

I tried loaded negative photos and wouldn’t work.
Developer Response Sep 2
Thanks for your feedback, and I’m sorry the app didn’t work as expected. I’d really like to help. If you can get in touch via the support link in the App Store and let me know what type of negative you were using (or send a sample image), I’ll investigate straight away. Your feedback helps make Trevni betterUpdate (2/9/26): I’ve identified and fixed an issue affecting some RAW workflows. The latest version now properly loads and develops various RAW formats at full resolution, including DNG and ProRAW.
Greatest app I have ever found
Jan 22
Peter Santoro
This app is hands down the best I’ve found for converting negatives into high-quality digital photos. Whether I’m working with old black-and-white rolls or color film, the results are consistently accurate, sharp, and true to the original. The color restoration is impressive—no strange tints or washed-out tones—and the black-and-white conversions retain beautiful depth and detail.What really sets this app apart is its ability to balance precision with ease of use. The scanning and inversion process is smooth, and the built-in correction tools allow fine adjustments without needing extra software. It feels like having a darkroom in your pocket, but faster and more reliable. If you’re serious about preserving old film memories with professional-quality results, this app delivers. It doesn’t just digitize negatives—it brings them back to life. Having processed several thousand negatives with this app, I can confidently assert that the latest update has greatly improved its overall performance. The enhancements have introduced a more streamlined workflow and elevated the user experience, making it easier than ever to achieve exceptional results.

Developer Response
Thank you so much for this. I’m really happy to hear the results have been consistent across both colour and black-and-white film. It means a lot that the balance between quality and ease of use is working well for you. “A darkroom in your pocket” is exactly what I was aiming for. Thanks for the thoughtful review and support!
Greatest app I have ever found
Jan 22
Peter Santoro

This app is hands down the best I’ve found for converting negatives into high-quality digital photos. Whether I’m working with old black-and-white rolls or color film, the results are consistently accurate, sharp, and true to the original. The color restoration is impressive—no strange tints or washed-out tones—and the black-and-white conversions retain beautiful depth and detail.What really sets this app apart is its ability to balance precision with ease of use. The scanning and inversion process is smooth, and the built-in correction tools allow fine adjustments without needing extra software. It feels like having a darkroom in your pocket, but faster and more reliable. If you’re serious about preserving old film memories with professional-quality results, this app delivers. It doesn’t just digitize negatives—it brings them back to life. Having processed several thousand negatives with this app, I can confidently assert that the latest update has greatly improved its overall performance. The enhancements have introduced a more streamlined workflow and elevated the user experience, making it easier than ever to achieve exceptional results.
Developer Response 12/20/2025
Thank you so much for this. I’m really happy to hear the results have been consistent across both colour and black-and-white film. It means a lot that the balance between quality and ease of use is working well for you. “A darkroom in your pocket” is exactly what I was aiming for. Thanks for the thoughtful review and support!
Best $1.99 spent
09/25/2025
n0jay
I was using an app with an inverted filter and I also used an app that scans negatives but they don’t compare to this app. It’s so easy to use and easy to adjust the photos. I love it.

Developer Response
Thank you so much for the kind words and support! I’m really glad you’re enjoying the app and finding it easy to use. It means a lot to hear it compares so well to other tools, and that the adjustment controls are useful for your workflow.
Best $1.99 spent
09/25/2025
n0jay

I was using an app with an inverted filter and I also used an app that scans negatives but they don’t compare to this app. It’s so easy to use and easy to adjust the photos. I love it.
Developer Response 12/20/2025
Thank you so much for the kind words and support! I’m really glad you’re enjoying the app and finding it easy to use. It means a lot to hear it compares so well to other tools, and that the adjustment controls are useful for your workflow.

Fixes to RAW support: Trevni now supports RAW files from cameras, DNG, and ProRAW from iPhone. Your negative is processed at full resolution, preserving much more detail for conversion and editing. Full-resolution export: Save your finished positive as JPEG, HEIC, or TIFF. TIFF keeps every pixel for further editing; JPEG and HEIC are better for sharing. Your photo’s details come with it: Camera, lens, exposure settings, date, and location carry across to the saved image, so an inverted frame stays as easy to find in your library as the original. Smoother to use: Sampling the film base and moving the adjustment sliders are noticeably more responsive, especially on large files.

Version 1.3 Sep 2

Data Not Collected

The developer does not collect any data from this app.

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Accessibility

Information

Seller: James Moore
Size: 3.8 MB
Category: Photo & Video
Compatibility: Requires iOS 17.0 or later.

iPhone
Requires iOS 17.0 or later.
Languages: English and 4 more

English, French, German, Italian, Spanish
Age Rating: 4+

4+

Learn More