# Zone Tool vs Lightme

The clearest difference is price: Lightme at Free against Zone Tool's $0.99. Lightme also leads on rating (4.8 vs 2.8) and update cadence (every 3 weeks vs every 38 months). Zone Tool's advantage is in-app purchases (none vs 6) and review sentiment (100% vs 91%). On ads and device support there is nothing between them.

Lightme is free to download; Zone Tool costs $0.99 up front. Lightme sells 6 one-off in-app purchases. Zone Tool asks for nothing beyond the download.

Lightme holds the better App Store score, 4.8 against 2.8. That said, the two scores are not equally well evidenced: Lightme has 925 ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 100% of Zone Tool's written reviews are positive against 91% of Lightme's, so the app with the better star average is not the one people write more warmly about.

Zone Tool ships an update every 38 months, Lightme every 3 weeks. The most recent releases landed on September 21, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Zone Tool | Lightme |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [2.8 (6 ratings)](https://appshunter.io/ios/app/zone-tool/id1489637620/reviews) | **[4.8 (925 ratings)](https://appshunter.io/ios/app/lightme-lightmeter/id1509033790/reviews)** |
| Number of ratings | 6 | **925** |
| Positive reviews | **100.0% of reviews** | 90.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 0 MB | 9 MB |
| Requires iOS | **12.2** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jouni Erola](https://appshunter.io/developer/295758397) | [Giuseppe Bertolini](https://appshunter.io/developer/1509033789) |

## What reviewers say

### Zone Tool

[App page](https://appshunter.io/ios/app/zone-tool/id1489637620)

Calculate photographic exposure and development adjustments using zone system theory. Measure shadows and highlights, input film ISO and desired shutter speed to determine aperture and development time modifications.

**Highlights:** Zone system exposure calculation, Shadow and highlight measurement, Film ISO input, Shutter speed adjustment, Development time calculation, Aperture determination

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Lightme

[App page](https://appshunter.io/ios/app/lightme-lightmeter/id1509033790)

This powerful light meter app offers a clean, intuitive interface optimized for one-handed use. It displays multiple aperture and shutter speed combinations simultaneously, aiding quick setting selection. Suitable for beginners and experienced photographers alike, it includes advanced features like spot metering, reciprocity failure compensation, and pinhole mode.

**Highlights:** Multiple exposure settings display, One-handed operation, Spot metering with zoom, Reciprocity failure compensation, Pinhole mode, Incident light metering, Film database

**Features:** Family Sharing

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Espresso ristretto | $1.99 | one-time |
| Pecorino Romano | $4.99 | one-time |
| Guanciale | $9.99 | one-time |
| Parmigiano | $16.99 | one-time |
| Pizza for two | $29.99 | one-time |
| Do this full-time | $59.99 | one-time |

**What reviewers like**

- 🚀 Accurate metering
- 👍 Intuitive and clean interface
- 💡 Comprehensive features (spot metering, zone system, film stock selection, etc.)
- 🚀 Consistently accurate exposures
- 👍 Thoughtful design with user's needs in mind

**What reviewers complain about**

- 🐛 Occasional crashes or freezes
- 👎 Confusing or cluttered interface for some users
- 👎 Tedious film selection process
- 🐛 Inaccurate metering in certain lighting conditions

**Reported bugs**

- Crashes on iOS 16
- Metering issues with certain camera/lens combinations

**Requested features**

- Add shutter angle adjustment for cinematography
- Implement ISO lock feature
- Add more film stock profiles
- Improve film selection process (e.g. search, categories)
- Provide more customization options (e.g. interface themes)


## Frequently asked questions

### Is Zone Tool free?

Zone Tool costs $0.99, with no in-app purchases.

### Is Lightme free?

Lightme is free to download, with in-app purchases available.

### Which has better reviews, Zone Tool or Lightme?

Lightme is rated higher. Zone Tool averages 2.8 out of 5 from 6 ratings, while Lightme averages 4.8 from 925 ratings.

### Do Zone Tool or Lightme have ads?

Neither Zone Tool nor Lightme shows ads.

### Which is updated more often, Zone Tool or Lightme?

Zone Tool ships an update every 38 months, and Lightme every 3 weeks. Most recently, Zone Tool was updated on September 21, 2026 and Lightme on October 12, 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.*