# Sound Meter (SPL meter) vs amscan

The clearest difference is price: amscan at Free against Sound Meter (SPL meter)'s $0.99. amscan also leads on ads (none vs shown) and review sentiment (50% vs 29%). Sound Meter (SPL meter)'s advantage is iOS requirement (13.0 vs 18.6). On in-app purchases and device support there is nothing between them.

amscan is free to download; Sound Meter (SPL meter) costs $0.99 up front. Sound Meter (SPL meter) sells 1 one-off in-app purchase and amscan sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Sound Meter (SPL meter) ships an update every 6 weeks, amscan every 11 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Sound Meter (SPL meter) | amscan |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.3 (6 ratings)](https://appshunter.io/ios/app/amscan/id6749589715/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | 28.6% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 11 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 25 MB | 20 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [庆鸿 林](https://appshunter.io/developer/1558629938) | [Dariush Majidi](https://appshunter.io/developer/1740614809) |

## What reviewers say

### Sound Meter (SPL meter)

[App page](https://appshunter.io/ios/app/sound-meter-spl-meter/id1558634102)

This utility app uses your device's microphone to measure ambient noise levels in decibels. It displays readings with graphical representations and provides historical data like minimum, average, and maximum values. Calibration options are available for different devices.

**Highlights:** Measures noise in decibels (dB), Displays decibel readings on a gauge, Shows current, min, avg, and max dB values, Graphs decibel levels over time, Tracks elapsed time of measurements, Allows device-specific decibel calibration

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $0.99 | one-time |


### amscan

[App page](https://appshunter.io/ios/app/amscan/id6749589715)

Visualize room modes in 3D using LiDAR scanning. Capture room geometry to instantly calculate acoustic modes, aiding in sound design and optimization for audiophiles and professionals. Offers free basic calculations with an in-app purchase for advanced modes.

**Highlights:** LiDAR room scanning, 3D room mode visualization, Automatic 3D model creation, Augmented Reality mode visualization, Basic acoustic data (RT60, Schroeder Freq, Volume), Unlimited room scanning

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Simulation Geometry | $3.99 | one-time |
| Additional Room Modes | $6.99 | one-time |


## Frequently asked questions

### Is Sound Meter (SPL meter) free?

Sound Meter (SPL meter) costs $0.99, and also offers in-app purchases.

### Is amscan free?

amscan is free to download, with in-app purchases available.

### Do Sound Meter (SPL meter) or amscan have ads?

Sound Meter (SPL meter) shows ads; amscan does not.

### Which is updated more often, Sound Meter (SPL meter) or amscan?

Sound Meter (SPL meter) ships an update every 6 weeks, and amscan every 11 days. Most recently, Sound Meter (SPL meter) was updated on November 3, 2026 and amscan on November 5, 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.*