# Strobe Groove Flashlight vs Useful Flashlight

The clearest difference is ads: Strobe Groove Flashlight at none against Useful Flashlight's shown. Useful Flashlight's advantage is update cadence (every 5 days vs every 2 months) and device support (3 vs 1). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Strobe Groove Flashlight ships an update every 2 months, Useful Flashlight every 5 days. The most recent releases landed on June 6, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Strobe Groove Flashlight | Useful Flashlight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/strobe-groove-flashlight/id455729197/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 6 MB | 66 MB |
| Requires iOS | 16.6 | **14.2** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kunihiko Nakahara](https://appshunter.io/developer/425654442) | [Hopebest Inc Limited](https://appshunter.io/developer/1717524727) |

## What reviewers say

### Strobe Groove Flashlight

[App page](https://appshunter.io/ios/app/strobe-groove-flashlight/id455729197)

This utility app transforms your phone's LED into a dynamic light source. It synchronizes flashing with music beats and offers manual strobe control. It also functions as a standard flashlight and can send Morse code.

**Highlights:** Music synchronization for light flashing, Manual strobe control, Everyday flashlight function, Morse code transmission, Customizable flashing parameters

**Features:** macOS Compatibility

**In-app purchases:** none


### Useful Flashlight

[App page](https://appshunter.io/ios/app/useful-flashlight/id6476199924)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Strobe Groove Flashlight free?

Strobe Groove Flashlight is free to download, with no in-app purchases.

### Is Useful Flashlight free?

Useful Flashlight is free to download, with no in-app purchases.

### Do Strobe Groove Flashlight or Useful Flashlight have ads?

Useful Flashlight shows ads; Strobe Groove Flashlight does not.

### Which is updated more often, Strobe Groove Flashlight or Useful Flashlight?

Strobe Groove Flashlight ships an update every 2 months, and Useful Flashlight every 5 days. Most recently, Strobe Groove Flashlight was updated on June 6, 2026 and Useful Flashlight on September 9, 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.*