# SonoMeter vs dunno. random decision picker

The clearest difference is update cadence: dunno. random decision picker at daily against SonoMeter's every 8 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SonoMeter sells 4 in-app purchases, starting at $1.99 per 7 days and dunno. random decision picker sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

SonoMeter ships an update every 8 months, dunno. random decision picker daily. Both last shipped on October 25, 2026.

## The numbers

| Metric | SonoMeter | dunno. random decision picker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Daily** |
| Size | 35 MB | 3 MB |
| Requires iOS | **16** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Raphael Goupille](https://appshunter.io/developer/1650597250) | [Dmytro Shamenko](https://appshunter.io/developer/1894528813) |

## 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 |


### dunno. random decision picker

[App page](https://appshunter.io/ios/app/dunno-random-decision-picker/id6786199497)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| dunno+ Monthly | $4.99 | per month |
| dunno+ Annual | $39.99 | per year |


## Frequently asked questions

### Is SonoMeter free?

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

### Is dunno. random decision picker free?

dunno. random decision picker is free to download, with in-app purchases available.

### Do SonoMeter or dunno. random decision picker have ads?

Neither SonoMeter nor dunno. random decision picker shows ads.

### Which is updated more often, SonoMeter or dunno. random decision picker?

SonoMeter ships an update every 8 months, and dunno. random decision picker daily. Most recently, SonoMeter was updated on October 25, 2026 and dunno. random decision picker on October 25, 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.*