# NMR Solvent Peaks vs Light Meter LM

The clearest difference is review sentiment: NMR Solvent Peaks at 100% against Light Meter LM's 40%. NMR Solvent Peaks also leads on rating (5.0 vs 4.5) and in-app purchases (none vs 3). Light Meter LM's advantage is ratings volume (2.6K vs 11) and update cadence (monthly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

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

NMR Solvent Peaks 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 11, so its average is the more settled of the two. Written reviews point the same way: 100% of NMR Solvent Peaks's written reviews are positive against 40% of Light Meter LM's.

NMR Solvent Peaks ships an update every 3 months, Light Meter LM monthly. The most recent releases landed on October 13, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | NMR Solvent Peaks | Light Meter LM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (11 ratings)](https://appshunter.io/ios/app/nmr-solvent-peaks/id1293462223/reviews)** | [4.5 (2.6K ratings)](https://appshunter.io/ios/app/light-meter-lm-3000/id1554264761/reviews) |
| Number of ratings | 11 | **2.6K** |
| Positive reviews | **100.0% of reviews** | 40.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 22 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lucas Moore](https://appshunter.io/developer/1293462222) | [Lightray Innovation GmbH](https://appshunter.io/developer/1031383431) |

## What reviewers say

### NMR Solvent Peaks

[App page](https://appshunter.io/ios/app/nmr-solvent-peaks/id1293462223)

This utility helps organic chemists quickly identify potential impurities by searching a database of NMR data. Users can input solvent, peak multiplicity, and location to find candidate impurities. It supports both proton and carbon data searches.

**Highlights:** Search for impurities by mode, solvent, multiplicity, and ppm, View alphabetical list of all impurities, Adjust user interface handedness, Select color themes, Supports proton and carbon NMR data

**In-app purchases:** none


### 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


## Frequently asked questions

### Is NMR Solvent Peaks free?

NMR Solvent Peaks is free to download, with no in-app purchases.

### Is Light Meter LM free?

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

### Which has better reviews, NMR Solvent Peaks or Light Meter LM?

NMR Solvent Peaks is rated higher. NMR Solvent Peaks averages 5.0 out of 5 from 11 ratings, while Light Meter LM averages 4.5 from 2.6K ratings.

### Do NMR Solvent Peaks or Light Meter LM have ads?

Neither NMR Solvent Peaks nor Light Meter LM shows ads.

### Which is updated more often, NMR Solvent Peaks or Light Meter LM?

NMR Solvent Peaks ships an update every 3 months, and Light Meter LM monthly. Most recently, NMR Solvent Peaks was updated on October 13, 2026 and Light Meter LM on October 25, 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.*