# 連絡先QRコード作成 vs MIDI Opener

The clearest difference is rating: MIDI Opener at 3.9 against 連絡先QRコード作成's 3.0. MIDI Opener also leads on update cadence (every 10 days vs every 2 months) and ratings volume (85 vs 2). 連絡先QRコード作成's advantage is in-app purchases (none vs 13) and iOS requirement (15.0 vs 17.6). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. MIDI Opener sells 13 one-off in-app purchases. 連絡先QRコード作成 asks for nothing beyond the download.

MIDI Opener holds the better App Store score, 3.9 against 3.0. That said, the two scores are not equally well evidenced: MIDI Opener has 85 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 70% of 連絡先QRコード作成's written reviews are positive against 64% of MIDI Opener's, so the app with the better star average is not the one people write more warmly about.

連絡先QRコード作成 ships an update every 2 months, MIDI Opener every 10 days. The most recent releases landed on October 16, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 連絡先QRコード作成 | MIDI Opener |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/qr/id369643475/reviews) | **[3.9 (85 ratings)](https://appshunter.io/ios/app/midi-opener/id1029373282/reviews)** |
| Number of ratings | 2 | **85** |
| Positive reviews | **70.0% of reviews** | 64.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 9 MB | 334 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Takashi Wada](https://appshunter.io/developer/347846039) | [MartianRover, LLC](https://appshunter.io/developer/1282183383) |

## What reviewers say

### 連絡先QRコード作成

[App page](https://appshunter.io/ios/app/qr/id369643475)

Easily create QR codes from your iPhone contacts. Share contact information instantly by displaying the QR code, compatible with major Japanese carriers. Also functions as a QR code reader and can resize photos for mobile email.

**Highlights:** Create QR codes from iPhone contacts, Supports 3 major Japanese carriers, Selectable contact information for QR code, QR code scanning functionality, Photo resizing for mobile email

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

**In-app purchases:** none


### MIDI Opener

[App page](https://appshunter.io/ios/app/midi-opener/id1029373282)

This app is a powerful and modern MIDI player designed for musicians, learners, and creators. It offers visual playback, tempo and key control, and advanced track management. Import custom soundbanks and enjoy features like synchronized lyrics and a 3D visualizer.

**Highlights:** Visual MIDI playback, Tempo and key control, Advanced track controls, 128 General MIDI instruments, Built-in effects, Custom soundbanks, Synchronized lyrics, 3D visualizer

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip | $0.99 | one-time |
| Full Upgrade Discount | $0.99 | one-time |
| Remove Ads | $1.99 | one-time |
| Change Tempo | $1.99 | one-time |
| Change Tempo and Key | $1.99 | one-time |
| All Access Upgrade | $2.99 | one-time |
| Track Controls | $2.99 | one-time |
| Super Tip | $4.99 | one-time |
| MIDI Out | $4.99 | one-time |
| Practice Pack | $4.99 | one-time |
| Full Upgrade | $4.99 | one-time |
| Premium Upgrade | $4.99 | one-time |
| All Access | $7.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🎶 Good sounding instruments
- 🚀 Handles instrument changes well
- ✨ Free to use
- ✅ Plays MIDI files effectively

**What reviewers complain about**

- 🐛 Crashes when changing SoundFonts (iOS 26)
- 🐛 Cuts off beginning of songs
- 🐛 Sustained notes treated as staccato
- 💸 Charging for basic features
- 📉 Poor sound quality for some instruments

**Reported bugs**

- Sustained notes are treated as staccato notes.
- Cuts off the beginning of the song.
- Kicked out of the app when clicking on another SoundFont.
- Crashes when changing SoundFonts (iOS 26).
- Bass drum is too quiet for metal music.

**Requested features**

- Adjust individual track volumes
- Zoom in/out
- Select region to play
- Export features (WAV, MP3, FLAC)
- Playlist functionality


## Frequently asked questions

### Is 連絡先QRコード作成 free?

連絡先QRコード作成 is free to download, with no in-app purchases.

### Is MIDI Opener free?

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

### Which has better reviews, 連絡先QRコード作成 or MIDI Opener?

MIDI Opener is rated higher. 連絡先QRコード作成 averages 3.0 out of 5 from 2 ratings, while MIDI Opener averages 3.9 from 85 ratings.

### Do 連絡先QRコード作成 or MIDI Opener have ads?

Both 連絡先QRコード作成 and MIDI Opener show ads.

### Which is updated more often, 連絡先QRコード作成 or MIDI Opener?

連絡先QRコード作成 ships an update every 2 months, and MIDI Opener every 10 days. Most recently, 連絡先QRコード作成 was updated on October 16, 2026 and MIDI Opener on October 15, 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.*