# PlanaCan vs Light Meter LM

The clearest difference is in-app purchases: PlanaCan at none against Light Meter LM's 3. PlanaCan also leads on review sentiment (50% vs 40%) and iOS requirement (12.1 vs 15.0). Light Meter LM's advantage is ratings volume (2.6K vs 6). On price, rating, update cadence and ads there is nothing between them.

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

Light Meter LM holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: Light Meter LM has 2.6K ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 50% of PlanaCan's written reviews are positive against 40% of Light Meter LM's, so the app with the better star average is not the one people write more warmly about.

PlanaCan ships an update every 6 weeks, Light Meter LM monthly. Both last shipped on November 3, 2026.

## The numbers

| Metric | PlanaCan | Light Meter LM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (6 ratings)](https://appshunter.io/ios/app/planacan/id1485829218/reviews) | **[4.5 (2.6K ratings)](https://appshunter.io/ios/app/light-meter-lm-3000/id1554264761/reviews)** |
| Number of ratings | 6 | **2.6K** |
| Positive reviews | **50.0% of reviews** | 40.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 61 MB | 22 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Michael Rast](https://appshunter.io/developer/1454139306) | [Lightray Innovation GmbH](https://appshunter.io/developer/1031383431) |

## What reviewers say

### PlanaCan

[App page](https://appshunter.io/ios/app/planacan/id1485829218)

This application assists commercial growers in planning, scheduling, and tracking their cultivation work. It offers a suite of tools across multiple platforms to streamline business operations.

**Highlights:** Business planning tools, Work scheduling, Cultivation tracking, Multi-platform software suite, Grower business management

**Features:** macOS Compatibility

**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 PlanaCan free?

PlanaCan 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, PlanaCan or Light Meter LM?

Light Meter LM is rated higher. PlanaCan averages 4.3 out of 5 from 6 ratings, while Light Meter LM averages 4.5 from 2.6K ratings.

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

Neither PlanaCan nor Light Meter LM shows ads.

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

PlanaCan ships an update every 6 weeks, and Light Meter LM monthly. Most recently, PlanaCan was updated on November 3, 2026 and Light Meter LM 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.*