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!
Looks good - doesn't help
I can't take pictures directly from the app - I'd even expect a (nearly) live conversion of what I can see via camera. You need to take pictures separately (or have them already in your photo gallery. You need to give full access to your Photos gallery (seems that you can only change allowances via iOS settings.
Annoying. Wasted 2,99 €
Response from developer
Thanks for the review and you’re right... Trevni currently works with existing photos rather than offering in-app or live camera capture, and I'm sorry that wasn’t clear enough upfront. I understand how that gap can make the app feel unhelpful, especially if you’re looking for a more immediate, camera-first experience. I’m actively improving onboarding, photo access handling, and exploring in-app capture so the workflow feels clearer and more useful from the start. Your feedback directly shapes where Trevni goes next. Thanks for giving it a try and for taking the time to call this out. — UPDATE 26 NOV 2025 — The app now uses a new photo access approach: it does not have general photo access and only has write permission to save images. Loading a photo is a one-time, user-initiated permission action for that image alone and fully respects iOS privacy controls. I’ve also fixed an issue where selected images could fail to load when using Limited Access. I do hope you’ll consider Trevni again as part of your workflow, and please feel free to get in touch if you have any questions or feedback.
Worthless
Response from developer
Thanks for the feedback. This app is designed to work with already-photographed or scanned negatives, which I clearly need to explain better in the description. I’m sorry it wasn’t what you expected.
