# Midiflow vs Side Stage Audio Tools

The clearest difference is in-app purchases: Side Stage Audio Tools at none against Midiflow's 3. Side Stage Audio Tools also leads on update cadence (every 2 weeks vs every 5 weeks). Midiflow's advantage is price ($7.99 vs $14.99) and iOS requirement (9.0 vs 15.1). On ads and device support there is nothing between them.

Midiflow costs $7.99 and Side Stage Audio Tools $14.99 up front. Midiflow sells 3 one-off in-app purchases. Side Stage Audio Tools asks for nothing beyond the download.

Midiflow ships an update every 5 weeks, Side Stage Audio Tools every 2 weeks. The most recent releases landed on October 4, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Midiflow | Side Stage Audio Tools |
| --- | --- | --- |
| Price | **$7.99** | $14.99 |
| Rating | **[4.0 (39 ratings)](https://appshunter.io/ios/app/midiflow/id879915554/reviews)** | — |
| Number of ratings | **39** | — |
| Positive reviews | 58.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 35 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Johannes Doerr](https://appshunter.io/developer/622204117) | [Peter Fealey](https://appshunter.io/developer/1737456598) |

## What reviewers say

### Midiflow

[App page](https://appshunter.io/ios/app/midiflow/id879915554)

This app enables seamless MIDI data transfer between different applications on your device. It allows for app synchronization, routing MIDI from sequencers to synths, and assigning keyboard zones. Users can save and recall configurations, and monitor MIDI activity.

**Highlights:** App-to-app MIDI routing, MIDI clock synchronization, Channel filtering and remapping, Note and velocity manipulation, Custom virtual MIDI ports, Preset saving and recall, Controller filtering and remapping (in-app purchase)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Send Controller On Load | $1.99 | one-time |
| Controller Conditions | $2.99 | one-time |
| Controller Remapping | $3.99 | one-time |

**What reviewers like**

- 👍 Comprehensive MIDI routing
- 💡 Flexible MIDI manipulation
- 🚀 Powerful functionality
- ✨ Intuitive interface (for some)
- ✅ Works in background

**What reviewers complain about**

- 🐛 Frequent crashes
- 🐛 App doesn't open
- 🐛 App closes immediately
- 🐛 Bugs and quirks
- 🐛 Unreliable for live use

**Reported bugs**

- Frequent crashes while editing CC map
- Mapped CCs dropped during performance
- App does not open on iOS 10
- Layout issues on iPhone 11 (no 'Done' button)
- App stops working, opens for 2 seconds then closes

**Requested features**

- AUv3 plugin version
- Mass sharing of songs
- Dark mode
- Ability to map multiple notes from one key press
- Individual transpose for split zones


### Side Stage Audio Tools

[App page](https://appshunter.io/ios/app/side-stage-audio-tools/id6758391796)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Midiflow free?

Midiflow costs $7.99, and also offers in-app purchases.

### Is Side Stage Audio Tools free?

Side Stage Audio Tools costs $14.99, with no in-app purchases.

### Do Midiflow or Side Stage Audio Tools have ads?

Neither Midiflow nor Side Stage Audio Tools shows ads.

### Which is updated more often, Midiflow or Side Stage Audio Tools?

Midiflow ships an update every 5 weeks, and Side Stage Audio Tools every 2 weeks. Most recently, Midiflow was updated on October 4, 2026 and Side Stage Audio Tools on September 19, 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.*