# KeyLight PRO vs Manual Flash Calculator

The clearest difference is review sentiment: KeyLight PRO at 44% against Manual Flash Calculator's 0%. KeyLight PRO also leads on price ($0.99 vs $2.99) and iOS requirement (10.0 vs 18.1). Manual Flash Calculator's advantage is update cadence (every 11 days vs every 26 months) and chart position (#190 vs unranked). On ads, in-app purchases, monetization model and device support there is nothing between them.

KeyLight PRO costs $0.99 and Manual Flash Calculator $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

KeyLight PRO ships an update every 26 months, Manual Flash Calculator every 11 days. The most recent releases landed on September 23, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | KeyLight PRO | Manual Flash Calculator |
| --- | --- | --- |
| Price | **$0.99** | $2.99 |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/keylight-pro/id635455188/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | **44.4% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 26 months | **Every 11 days** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#190** |
| Size | 3 MB | 2 MB |
| Requires iOS | **10.0** | 18.1 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Brewer](https://appshunter.io/developer/635455211) | [Winterink](https://appshunter.io/developer/324469683) |

## 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


### Manual Flash Calculator

[App page](https://appshunter.io/ios/app/manual-flash-calculator/id6739006004)

**Currently charting:** #190 Top Paid · Photo & Video (US App Store)

This app assists photographers by calculating camera and flash settings for manual flash photography. It allows users to create gear lists and kits, and then use this information to determine the fourth parameter (like flash power) when any three of the four relevant settings are known.

**Highlights:** Manual flash photography calculator, Configure camera and flash settings, Calculate missing parameter from three inputs, Create and manage gear lists, Organize gear into custom kits, Persistent local data storage

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KeyLight PRO free?

KeyLight PRO costs $0.99, with no in-app purchases.

### Is Manual Flash Calculator free?

Manual Flash Calculator costs $2.99, with no in-app purchases.

### Do KeyLight PRO or Manual Flash Calculator have ads?

Neither KeyLight PRO nor Manual Flash Calculator shows ads.

### Which is updated more often, KeyLight PRO or Manual Flash Calculator?

KeyLight PRO ships an update every 26 months, and Manual Flash Calculator every 11 days. Most recently, KeyLight PRO was updated on September 23, 2026 and Manual Flash Calculator on September 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.*