# Alt Viewer vs Stereo Microphone

The clearest difference is price: Alt Viewer at Free against Stereo Microphone's $2.99. Stereo Microphone's advantage is update cadence (every 6 weeks vs every 3 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Alt Viewer is free to download; Stereo Microphone costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Alt Viewer ships an update every 3 months, Stereo Microphone every 6 weeks. The most recent releases landed on October 27, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Alt Viewer | Stereo Microphone |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[4.4 (9 ratings)](https://appshunter.io/ios/app/stereo-microphone/id6449208745/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 85.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | — | Paid |
| Size | 2 MB | 3 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [COMMUNICATION BUSINESS AVENUE INC.](https://appshunter.io/developer/1098159758) | [Ryouta Kira](https://appshunter.io/developer/862984358) |

## What reviewers say

### Alt Viewer

[App page](https://appshunter.io/ios/app/alt-viewer/id1669436969)

**Features:** macOS Compatibility, Safari Extension

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Alt Viewer free?

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

### Is Stereo Microphone free?

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

### Do Alt Viewer or Stereo Microphone have ads?

Neither Alt Viewer nor Stereo Microphone shows ads.

### Which is updated more often, Alt Viewer or Stereo Microphone?

Alt Viewer ships an update every 3 months, and Stereo Microphone every 6 weeks. Most recently, Alt Viewer was updated on October 27, 2026 and Stereo Microphone on November 3, 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.*