# Singing Tutor vs Midiflow Adapter (Audiobus)

The clearest difference is review sentiment: Midiflow Adapter (Audiobus) at 75% against Singing Tutor's 18%. Midiflow Adapter (Audiobus) also leads on chart position (#195 vs unranked) and iOS requirement (10.2 vs 12.0). Singing Tutor's advantage is update cadence (every 5 months vs every 12 months) and price ($0.99 vs $1.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Singing Tutor costs $0.99 and Midiflow Adapter (Audiobus) $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Singing Tutor ships an update every 5 months, Midiflow Adapter (Audiobus) every 12 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Singing Tutor | Midiflow Adapter (Audiobus) |
| --- | --- | --- |
| Price | **$0.99** | $1.99 |
| Rating | — | **[4.2 (5 ratings)](https://appshunter.io/ios/app/midiflow-adapter-audiobus/id1225817367/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 18.2% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 12 months |
| Monetization | Paid | Paid |
| Best chart rank | — | **#195** |
| Size | 48 MB | 5 MB |
| Requires iOS | 12.0 | **10.2** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Anton Plakhotnyk](https://appshunter.io/developer/583858120) | [Johannes Doerr](https://appshunter.io/developer/622204117) |

## What reviewers say

### Singing Tutor

[App page](https://appshunter.io/ios/app/singing-tutor/id598406045)

Enhance your singing and musical abilities with real-time voice analysis and visual feedback. Practice with customizable tracks and record your performances for later review.

**Highlights:** Real-time voice analysis, Visual reference tracks, Customizable practice sessions, Volume indicator, Background track playback, Recording and playback, Audio export

**Features:** Vision Pro support

**In-app purchases:** none


### Midiflow Adapter (Audiobus)

[App page](https://appshunter.io/ios/app/midiflow-adapter-audiobus/id1225817367)

**Currently charting:** #195 Top Paid · Music (US App Store)

This app bridges the gap for music applications that only support Core MIDI, enabling them to integrate with Audiobus 3. It creates virtual MIDI ports, allowing older music apps to send and receive MIDI data within the Audiobus 3 ecosystem.

**Highlights:** Creates permanent virtual MIDI ports, Supports up to 10 receiving apps, Supports up to 10 sending apps, Allows multiple instances in Audiobus 3, Translates between Core MIDI and Audiobus 3, Works with apps allowing MIDI port selection

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

**In-app purchases:** none


## Frequently asked questions

### Is Singing Tutor free?

Singing Tutor costs $0.99, with no in-app purchases.

### Is Midiflow Adapter (Audiobus) free?

Midiflow Adapter (Audiobus) costs $1.99, with no in-app purchases.

### Do Singing Tutor or Midiflow Adapter (Audiobus) have ads?

Neither Singing Tutor nor Midiflow Adapter (Audiobus) shows ads.

### Which is updated more often, Singing Tutor or Midiflow Adapter (Audiobus)?

Singing Tutor ships an update every 5 months, and Midiflow Adapter (Audiobus) every 12 months. Most recently, Singing Tutor was updated on October 23, 2026 and Midiflow Adapter (Audiobus) on October 24, 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.*