# jefferyleo/f.lux

flux for iOS

Repository: https://github.com/jefferyleo/f.lux
Canonical: https://ross.abutalabs.com/products/jefferyleo-flux
Language: Objective-C
License Family: other
Last push: 2018-12-05T05:01:22+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3948, "days_push": 2828, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1081, forks 184 (observed 2026-08-28T04:03:30.661490+00:00)

## What it is
An Xcode project that lets users sideload the f.lux screen color temperature app onto iOS devices without jailbreaking. It works by splicing a prebuilt opaque binary into a dummy app so Xcode signs and installs it.

## Use cases
- install f.lux on my iphone without jailbreaking
- reduce blue light on ios at night
- make my iphone screen warmer in the evening
- sideload an app that apple won't allow on the app store
- adjust screen color temperature on ios

## When to choose
- you want f.lux's system-wide color shifting on a non-jailbroken iOS device
- you have Xcode and are comfortable building and signing an app yourself

## When to avoid
- you want a maintained, actively updated tool (last release was 2018)
- you need an App Store install or official support
- you prefer built-in Night Shift or don't want to sideload unsigned-store apps

## Facets
- artifact type: application
- maturity: abandoned
- function: gui
- domain: mobile-development, developer-tools, apple-ecosystem
- platform: -
- tags: flux, night-shift, screen-color-temperature, sideload, xcode, objective-c, eye-strain, ios, macos

## Member repositories
- jefferyleo/f.lux (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:30.661490+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:51:22.730778+00:00, confidence not recorded.
  - readme: https://github.com/jefferyleo/f.lux (fetched 2026-08-28T04:03:30.661490+00:00, sha 4f031cacf3c3)
- Data as of 2026-08-30T08:39:29.467469+00:00.