# S&O vs MIFO

The clearest difference is update cadence: MIFO at every 4 days against S&O's every 2 weeks. S&O's advantage is iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

S&O ships an update every 2 weeks, MIFO every 4 days. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | S&O | MIFO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/s-and-o/id1636163678/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | Free | — |
| Size | 138 MB | 12 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mifo Technology Co.LTD](https://appshunter.io/developer/1626708738) | [NOTICE AGENCY Limited Liability Company](https://appshunter.io/developer/1896550133) |

## What reviewers say

### S&O

[App page](https://appshunter.io/ios/app/s-and-o/id1636163678)

This app allows users to customize settings and optimize sound quality for supported Bluetooth headphones. It offers features like ambient sound control, personalized operation settings, and white noise for relaxation. Users can also track their earbuds' battery life.

**Highlights:** Ambient sound control (ANC), Customizable operation settings, White noise for relaxation, Battery status tracking, Sound quality optimization

**Features:** macOS Compatibility

**In-app purchases:** none


### MIFO

[App page](https://appshunter.io/ios/app/mifo/id6762269812)

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

**In-app purchases:** none


## Frequently asked questions

### Is S&O free?

S&O is free to download, with no in-app purchases.

### Is MIFO free?

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

### Do S&O or MIFO have ads?

Neither S&O nor MIFO shows ads.

### Which is updated more often, S&O or MIFO?

S&O ships an update every 2 weeks, and MIFO every 4 days. Most recently, S&O was updated on November 3, 2026 and MIFO 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.*