# Stereo Microphone vs OPQRcoder

The clearest difference is price: OPQRcoder at Free against Stereo Microphone's $2.99. Stereo Microphone's advantage is in-app purchases (none vs 1) and update cadence (monthly vs every 16 months). On ads, device support and iOS requirement there is nothing between them.

OPQRcoder is free to download; Stereo Microphone costs $2.99 up front. OPQRcoder sells 1 one-off in-app purchase. Stereo Microphone asks for nothing beyond the download.

Stereo Microphone ships an update monthly, OPQRcoder every 16 months. The most recent releases landed on September 26, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Stereo Microphone | OPQRcoder |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.5 (8 ratings)](https://appshunter.io/ios/app/stereo-microphone/id6449208745/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 85.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 16 months |
| Monetization | Paid | — |
| Size | 4 MB | 37 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Ryouta Kira](https://appshunter.io/developer/862984358) | [Takaho Endo](https://appshunter.io/developer/1705551687) |

## What reviewers say

### Stereo Microphone

[App page](https://appshunter.io/ios/app/stereo-microphone/id6449208745)

Transform your device into a powerful microphone or audio recorder. Enhance your sound with built-in effects like pitch shifting and equalization, and choose from various high-quality recording formats.

**Highlights:** Device as microphone, Audio recording, Pitch shifter effect, 10-band equalizer, Multiple recording formats, Noise reduction, System voice processing

**Features:** Vision Pro support

**In-app purchases:** none


### OPQRcoder

[App page](https://appshunter.io/ios/app/opqrcoder/id6464173069)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OPQRcoder Pro | $1.99 | one-time |


## Frequently asked questions

### Is Stereo Microphone free?

Stereo Microphone costs $2.99, with no in-app purchases.

### Is OPQRcoder free?

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

### Do Stereo Microphone or OPQRcoder have ads?

Neither Stereo Microphone nor OPQRcoder shows ads.

### Which is updated more often, Stereo Microphone or OPQRcoder?

Stereo Microphone ships an update monthly, and OPQRcoder every 16 months. Most recently, Stereo Microphone was updated on September 26, 2026 and OPQRcoder on September 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.*