# Light Meter LM vs Chill

The clearest difference is rating: Chill at 5.0 against Light Meter LM's 4.5. Chill also leads on in-app purchases (none vs 3). Light Meter LM's advantage is ratings volume (2.6K vs 2) and update cadence (monthly vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Light Meter LM sells 3 in-app purchases, starting at $3.49 per month. Chill asks for nothing beyond the download.

Chill holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Light Meter LM has 2.6K ratings behind it against 2, so its average is the more settled of the two.

Light Meter LM ships an update monthly, Chill every 4 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Light Meter LM | Chill |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (2.6K ratings)](https://appshunter.io/ios/app/light-meter-lm-3000/id1554264761/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/chill-cold-plunge-timer/id6449394827/reviews)** |
| Number of ratings | **2.6K** | 2 |
| Positive reviews | 40.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 22 MB | 6 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Lightray Innovation GmbH](https://appshunter.io/developer/1031383431) | [Anda Blandu](https://appshunter.io/developer/1688883018) |

## What reviewers say

### Light Meter LM

[App page](https://appshunter.io/ios/app/light-meter-lm-3000/id1554264761)

Transform your smartphone into a professional light meter. Measure illuminance and color temperature with scientifically validated accuracy, trusted by professionals. Requires a simple diffuser for precise readings.

**Highlights:** Measure illuminance (lux/foot-candle), Measure color temperature (Kelvin), Industry-leading accuracy, Pre-calibrated for your device, Low light sensitivity, Save peak reading, Custom calibration option

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Continuous Charging | $3.49 | per month |
| Single Charge | $0.99 | one-time |
| Unlimited Battery | $19.99 | one-time |

**What reviewers like**

- 👍 Great app
- 👍 Accurate measurements
- 👍 Easy to use
- 👍 Helpful customer service
- 👍 Useful for science/research

**What reviewers complain about**

- 🐛 Requires diffuser for accurate readings
- 💰 Expensive for a light meter app
- 🔋 Battery/trial period issues
- 🔍 Inconsistent/inaccurate readings
- 🙄 Misleading/deceptive marketing

**Reported bugs**

- Diffuser not recognized even when used
- App locks up/crashes
- Constant diffuser pop-up interruptions

**Requested features**

- Ability to use rear camera
- More flexible diffuser options
- Improved accuracy without diffuser


### Chill

[App page](https://appshunter.io/ios/app/chill-cold-plunge-timer/id6449394827)

This app is a dedicated companion for cold plunge sessions, offering precision timing, guided breathing exercises, and rhythmic chimes to enhance your cold immersion experience. It helps optimize your practice for physical recovery, mental clarity, and energy boosts.

**Highlights:** Customizable session durations, Guided box breathing exercise, 30-second interval chimes, 10-second final countdown, Enhances cold immersion benefits

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Light Meter LM free?

Light Meter LM is free to download, with in-app purchases available.

### Is Chill free?

Chill is free to download, with no in-app purchases.

### Which has better reviews, Light Meter LM or Chill?

Chill is rated higher. Light Meter LM averages 4.5 out of 5 from 2.6K ratings, while Chill averages 5.0 from 2 ratings.

### Do Light Meter LM or Chill have ads?

Neither Light Meter LM nor Chill shows ads.

### Which is updated more often, Light Meter LM or Chill?

Light Meter LM ships an update monthly, and Chill every 4 months. Most recently, Light Meter LM was updated on November 3, 2026 and Chill on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*