# Kelvin: Light Panel — Pocket photography light

> Mobile device utility for adjustable light for photography and other uses. (iPhone/iPad app by Yesterday Labs, LLC.)

- Source: https://appshunter.io/ios/app/kelvin-light-panel/id1562608316 (this page in markdown: same URL + `.md`)
- Developer: [Yesterday Labs, LLC](https://appshunter.io/developer/1500455291)
- Category: Utilities, Photo & Video
- Price: $1.99
- Rating: 2.33/5 from 3 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 1 MB
- Languages: English
- Released: 2021-04-13
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/kelvin-light-panel/id1562608316/reviews.md

## What is Kelvin?

Kelvin turns your device into a simple light for photography, star gazing, darkroom, and more. Easily set Kelvin to any color or color temperature. Kelvin is perfect for:

→ Basic photography light
→ Light table / lightbox for viewing film negatives, drawing, tracing, animation, etc.
→ Red light for star-gazing or darkroom viewing
→ Night light or flashlight
→ and more

Kelvin has a simple design and simple features:

→ Brightness slider
→ Temperature slider with kelvin label for quickly selecting a color temperature
→ Solid color to mimic color gels
→ Color picker to find your unique color
→ Save color through closing

## Key features

- Adjustable brightness
- Color temperature control
- Solid color mimicry
- Custom color picker
- Save custom colors
- Versatile light source

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/kelvin-light-panel/id1562608316/reviews.md

### 1/5 — A year later, still no color temperature number

*2022-09-19*

Please include the color temp number… or at least color swatches with labeled colur temperatures, i.e. 2700, 3200, 4000, 5600, 6500, etc.
Thank you.

### 1/5 — Stupid program

*2021-10-17*

One would THINK the color temperature value would be displayed…nope. I want my money back

**Developer response:** Displaying the color temperature is a good idea. We will get started on an update. Thanks for the suggestion.

## Frequently asked questions about Kelvin

### What is Kelvin used for?

Kelvin turns your device into a light source for photography, stargazing, darkroom viewing, tracing, and as a general flashlight or night light.

### How much does Kelvin cost?

Kelvin is a paid app priced at $1.99.

### What devices does Kelvin support?

Kelvin is available for iPhone and iPad devices.

### What is the age rating for Kelvin?

Kelvin has an age rating of 4+.

### How often is Kelvin updated?

Kelvin was last updated on November 13, 2024, with version 1.1.0.

### Does Kelvin have ads?

No, Kelvin is ad-free.

### Can I save custom light settings in Kelvin?

Yes, Kelvin allows you to save your chosen colors and color temperatures for quick access later.

### What is the user sentiment for Kelvin?

Based on 3 ratings, Kelvin has an average rating of 2.3 stars.

## Version history (last 2 releases)

### 1.1.0 — 2024-11-13

This update comes with simple, overdue features:

→ Temperature slider label
→ Save color selection through closing app
→ UI and performance improvements

### 1.0 — 2021-04-13

No release notes.

## More apps by Yesterday Labs, LLC

- [Stone - Travel Unit Converter](https://appshunter.io/ios/app/stone-travel-unit-converter/id1517251247)
- [Everest Bike Computer](https://appshunter.io/ios/app/everest-bike-computer/id1665000684)

All apps by Yesterday Labs, LLC: https://appshunter.io/developer/1500455291

---

*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 2026-06-10.*