# iFlashlight Pro vs Least Common Multiple (LCM)

The clearest difference is price: iFlashlight Pro at Free against Least Common Multiple (LCM)'s $0.99. iFlashlight Pro also leads on update cadence (every 4 months vs every 38 months). Least Common Multiple (LCM)'s advantage is iOS requirement (14.1 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

iFlashlight Pro is free to download; Least Common Multiple (LCM) costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iFlashlight Pro ships an update every 4 months, Least Common Multiple (LCM) every 38 months. The most recent releases landed on September 17, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | iFlashlight Pro | Least Common Multiple (LCM) |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/iflashlight-pro/id392514814/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 88.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 38 months |
| Monetization | Free | — |
| Size | 1 MB | 0 MB |
| Requires iOS | 17.0 | **14.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ioannis Pinakoulakis](https://appshunter.io/developer/380800737) | [H Valeur](https://appshunter.io/developer/621824042) |

## What reviewers say

### iFlashlight Pro

[App page](https://appshunter.io/ios/app/iflashlight-pro/id392514814)

This simple utility app transforms your iPhone into a bright flashlight. It offers multiple brightness levels and can even send Morse code messages. Illuminate your surroundings, find your keys, or read in the dark with instant light.

**Highlights:** Instant touch light, Morse code messaging, Three brightness stages, Illuminates rooms and nearby space, Unlock car or house doors

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Instant light activation
- 💡 Useful signal/morse code feature
- 🔦 Bright and powerful light

**What reviewers complain about**

- 🐛 Crashes or freezes on some devices
- 🔋 High battery consumption
- 💸 Ads in paid version

**Reported bugs**

- Crashes on iOS 5.1.1
- Incompatible with older devices

**Requested features**

- Option to keep light on until manually turned off
- More customization options


### Least Common Multiple (LCM)

[App page](https://appshunter.io/ios/app/least-common-multiple-lcm/id1572012661)

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

**In-app purchases:** none


## Frequently asked questions

### Is iFlashlight Pro free?

iFlashlight Pro is free to download, with no in-app purchases.

### Is Least Common Multiple (LCM) free?

Least Common Multiple (LCM) costs $0.99, with no in-app purchases.

### Do iFlashlight Pro or Least Common Multiple (LCM) have ads?

Neither iFlashlight Pro nor Least Common Multiple (LCM) shows ads.

### Which is updated more often, iFlashlight Pro or Least Common Multiple (LCM)?

iFlashlight Pro ships an update every 4 months, and Least Common Multiple (LCM) every 38 months. Most recently, iFlashlight Pro was updated on September 17, 2026 and Least Common Multiple (LCM) on September 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*