# Flash_Me vs Sound Level & Spectrogram

The clearest difference is update cadence: Flash_Me at every 2 months against Sound Level & Spectrogram's every 5 months. Flash_Me also leads on monetization model (free vs ad-supported) 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.

Flash_Me ships an update every 2 months, Sound Level & Spectrogram every 5 months. The most recent releases landed on October 3, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Flash_Me | Sound Level & Spectrogram |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/flash-me/id1200801754/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | — | Yes |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | **Free** | Ad-supported |
| Size | 14 MB | 4 MB |
| Requires iOS | **9.0** | 18.7 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Cliff Dicken](https://appshunter.io/developer/1200801753) | [TOON,LLC](https://appshunter.io/developer/633948723) |

## What reviewers say

### Flash_Me

[App page](https://appshunter.io/ios/app/flash-me/id1200801754)

Create attention-grabbing messages and display images in large, bright, flashing colors. Ideal for fun, emergency situations, or business marketing.

**Highlights:** Large, bright, flashing text, Flashing colored images, Unlimited color combinations, Emoji icon support, Emergency alert functionality, Business marketing tool

**Features:** macOS Compatibility

**In-app purchases:** none


### Sound Level & Spectrogram

[App page](https://appshunter.io/ios/app/sound-level-and-spectrogram/id6503722682)

Measure sound levels in decibels and visualize sound frequencies with a real-time spectrogram. Understand your environment's noise and protect your health. Offers advanced settings for accurate acoustic analysis.

**Highlights:** Sound level measurement (dB), Real-time spectrogram analysis, Frequency weighting correction (A, C, Z), Time weighting characteristics (Fast, Slow), Time course graph, Environmental noise measurement

**In-app purchases:** none


## Frequently asked questions

### Is Flash_Me free?

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

### Is Sound Level & Spectrogram free?

Sound Level & Spectrogram is free to download, with no in-app purchases.

### Which is updated more often, Flash_Me or Sound Level & Spectrogram?

Flash_Me ships an update every 2 months, and Sound Level & Spectrogram every 5 months. Most recently, Flash_Me was updated on October 3, 2026 and Sound Level & Spectrogram on October 6, 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.*