# NF - FilmLab — ProNegativeFilmConverter

> ProNegativeFilmConverter (iPhone/iPad app by 琪 闫.)

- Source: https://appshunter.io/ios/app/nf-filmlab/id6802966111 (this page in markdown: same URL + `.md`)
- Developer: [琪 闫](https://appshunter.io/developer/1832244905)
- Category: Photo & Video, Graphics & Design
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 193 MB
- Languages: Chinese (Simplified, China)
- Released: 2026-09-01
- Data updated: 2026-10-17

## What is NF?

Nextframe is an on-device film-negative inversion tool.

Photograph or import a real negative (RAW supported) and invert it on your iPhone: film-base and white-point sampling, color-cast correction, DCMY channels, perforations, curves, and HDR. Source files stay in the app until you export. Nothing is uploaded to our servers, and there is no account.

What it does
• Copy a negative with the camera, or import from Photos / Files
• Invert on device and save a positive
• Sample film base and white by hand, or use on-device color prediction
• Adjust the invert by channel, plus perfs, tone, white balance, and curves
• Develop RAW locally, with common color spaces

Also included
• Film looks for positives or RAW, with stock recipes and imported .cube / .3dl / XMP LUTs
• Pair a still and a video into a system Live Photo
• Split a long frame into 3:4 stills

Built for people who scan or copy their own film. The job is to turn a negative into a positive. Everything else is secondary.

Auto-renewable subscriptions
NextframePro includes a monthly plan, a yearly plan (auto-renew), and a lifetime purchase. Prices are shown on the purchase screen. Cancel anytime in iOS Settings. Purchase means you agree to the Terms of Use and Privacy Policy.

Terms of Use (EULA)
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Privacy Policy
https://docs.qq.com/doc/DWk5iamhyS3FIVm9s#

## Is NF safe?

Not enough ratings yet to assess NF.

## Is NF legit?

NF - FilmLab appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for NF is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 4 releases)

### 1.4 — 2026-10-08

bug fix

### 1.3 — 2026-10-06

- updates

### 1.1 — 2026-09-04

支持了图片拆分功能

### 1.0 — 2026-09-01

No release notes.

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| [Awaking: Match Color & Light](https://appshunter.io/ios/app/awaking-match-color-and-light/id6760924133) | — | Free | Photo & Video |
| [Filmlume: Negative to Positive](https://appshunter.io/ios/app/filmlume-negative-to-positive/id6817009464) | — | Free | Photo & Video |

## More apps by 琪 闫

- [过来](https://appshunter.io/ios/app/id6776916074)
- [Cubbies](https://appshunter.io/ios/app/cubbies/id6781600336)
- [NiceSnap](https://appshunter.io/ios/app/nicesnap/id6793449447)
- [fococo](https://appshunter.io/ios/app/fococo/id6800617814)

All apps by 琪 闫: https://appshunter.io/developer/1832244905

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-17.*