# SonoMeter vs PeptideCalc Pro

The clearest difference is price: SonoMeter at Free against PeptideCalc Pro's $4.99. PeptideCalc Pro's advantage is in-app purchases (none vs 4). On ads, device support and iOS requirement there is nothing between them.

SonoMeter is free to download; PeptideCalc Pro costs $4.99 up front. SonoMeter sells 4 in-app purchases, starting at $1.99 per 7 days. PeptideCalc Pro asks for nothing beyond the download.

## The numbers

| Metric | SonoMeter | PeptideCalc Pro |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 months | — |
| Size | 35 MB | 4 MB |
| Requires iOS | 16 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Raphael Goupille](https://appshunter.io/developer/1650597250) | [Aaron Voges](https://appshunter.io/developer/1866792993) |

## What reviewers say

### SonoMeter

[App page](https://appshunter.io/ios/app/sonometer-decibel-meter/id6745488403)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $1.99 | per 7 days |
| Monthly subscription | $5.99 | per month |
| Annual subscription | $24.99 | per year |
| Premium Lifetime | $6.99 | one-time |


### PeptideCalc Pro

[App page](https://appshunter.io/ios/app/peptidecalc-pro/id6757415669)

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

**In-app purchases:** none


## Frequently asked questions

### Is SonoMeter free?

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

### Is PeptideCalc Pro free?

PeptideCalc Pro costs $4.99, with no in-app purchases.

### Do SonoMeter or PeptideCalc Pro have ads?

Neither SonoMeter nor PeptideCalc Pro shows ads.

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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.*