Great lightroom alternative
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!
Response from developer
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. Jim
App not working!
Response from developer
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 better Update (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.
Really useful
Response from developer
Thanks so much. Really glad to hear Trevni is fitting into your darkroom workflow. That’s a great shout on straightening and corner correction too, especially when working from photographed negatives on a light table. Definitely something I’d like to explore in a future update.
Fast gut
Ich verwende die iPhone Version auf dem iPad, jedoch wird das Karusell nicht dargestellt.
Response from developer
Vielen Dank für das durchdachte Feedback, das ist sehr hilfreich. Du hast völlig recht, dass die Arbeit mit Negativen von einem grösseren Display profitiert, und es freut mich zu hören, dass du die App bereits auf dem iPad nutzt. Dass das Karussell auf dem iPad nicht angezeigt wird, ist nicht das erwartete Verhalten, das werde ich mir genauer ansehen. Eine native iPad-Unterstützung ziehe ich aktiv in Betracht. Vielen Dank, dass du dir die Zeit für dieses Feedback genommen hast.
Greatest app I have ever found
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.
Response from developer
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!








