# KeyLight PRO vs Lightme

The clearest difference is review sentiment: Lightme at 91% against KeyLight PRO's 44%. Lightme also leads on price (Free vs $0.99) and rating (4.8 vs 4.0). KeyLight PRO's advantage is in-app purchases (none vs 6) and iOS requirement (10.0 vs 15.6). On ads and device support there is nothing between them.

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

Lightme holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Lightme has 936 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 44% of KeyLight PRO's written reviews are positive against 91% of Lightme's.

KeyLight PRO ships an update every 26 months, Lightme every 3 weeks. The most recent releases landed on September 23, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | KeyLight PRO | Lightme |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/keylight-pro/id635455188/reviews) | **[4.8 (936 ratings)](https://appshunter.io/ios/app/lightme-lightmeter/id1509033790/reviews)** |
| Number of ratings | 4 | **936** |
| Positive reviews | 44.4% of reviews | **90.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 26 months | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 3 MB | 9 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Brewer](https://appshunter.io/developer/635455211) | [Giuseppe Bertolini](https://appshunter.io/developer/1509033789) |

## What reviewers say

### KeyLight PRO

[App page](https://appshunter.io/ios/app/keylight-pro/id635455188)

This app simplifies off-camera flash photography by providing calculators for optimal exposure settings. It helps photographers determine ISO, aperture, strobe power, and distance, removing guesswork for both beginners and advanced users. Manage multiple lighting setups and modifiers with its virtual gear bag.

**Highlights:** Exposure calculators (ISO, aperture, strobe power, distance), Key Falloff calculator, Virtual Gear Bag for unlimited strobe configurations, Strobe Library with 100+ pre-loaded models, Support for various light modifiers, Save multiple setups

**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 KeyLight PRO free?

KeyLight PRO 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, KeyLight PRO or Lightme?

Lightme is rated higher. KeyLight PRO averages 4.0 out of 5 from 4 ratings, while Lightme averages 4.8 from 936 ratings.

### Do KeyLight PRO or Lightme have ads?

Neither KeyLight PRO nor Lightme shows ads.

### Which is updated more often, KeyLight PRO or Lightme?

KeyLight PRO ships an update every 26 months, and Lightme every 3 weeks. Most recently, KeyLight PRO was updated on September 23, 2026 and Lightme on October 20, 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.*