# Pure Synth® Platinum vs ConnectionOpen

The clearest difference is review sentiment: ConnectionOpen at 100% against Pure Synth® Platinum's 51%. ConnectionOpen also leads on rating (5.0 vs 3.6). Pure Synth® Platinum's advantage is monetization model (free with in-app purchases vs subscription) and ratings volume (54 vs 4). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Pure Synth® Platinum sells 13 one-off in-app purchases and ConnectionOpen sells 4 in-app purchases, starting at $24.99 per month. Whichever you choose, the download price is not the number that matters.

ConnectionOpen holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: Pure Synth® Platinum has 54 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 51% of Pure Synth® Platinum's written reviews are positive against 100% of ConnectionOpen's.

Pure Synth® Platinum ships an update every 3 months, ConnectionOpen every 2 months. The most recent releases landed on October 20, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Pure Synth® Platinum | ConnectionOpen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (54 ratings)](https://appshunter.io/ios/app/pure-synth-platinum/id1459688500/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/connectionopen/id1500409403/reviews)** |
| Number of ratings | **54** | 4 |
| Positive reviews | 50.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 317 MB | 51 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [MIDIculous LLC](https://appshunter.io/developer/579058990) | [ConnectionOpen, Inc.](https://appshunter.io/developer/1500409402) |

## What reviewers say

### Pure Synth® Platinum

[App page](https://appshunter.io/ios/app/pure-synth-platinum/id1459688500)

This app is a versatile virtual instrument player for iOS, serving as a comprehensive solution for rompler, synthesizer, and wavetable needs. It offers advanced modulation, built-in effects, and expandable sound libraries. Users can store samples on external drives and customize their sound with unique features.

**Highlights:** Rompler, synthesizer, and wavetable engines, Advanced automation and modulation system, Includes VKFX Suite and additional free effects, Expandable sound libraries via virtual IAP, External drive support for sample storage, MIDI Learn and modulate any parameter, AUv3 Full View Support

**Features:** Family Sharing, Vision Pro support

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pure Synth 8 Bit Expansion | $2.99 | one-time |
| Rached 808s for Pure Synth | $3.99 | one-time |
| EDM Leads Vol 1 for Pure Synth | $3.99 | one-time |
| Pure Glide Urban Synth | $5.99 | one-time |
| BASSalicious 1 Factory Content | $6.99 | one-time |
| Creatmosphere Expansion | $6.99 | one-time |
| Suitcase EP Piano Expansion | $7.99 | one-time |
| YAMAHA EX5 Expansion | $7.99 | one-time |
| Pure Sine 2 | $8.99 | one-time |
| BASSalicious 2 Factory Content | $9.99 | one-time |
| Upright Piano Expansion | $9.99 | one-time |
| FM TiNES Expansion for PSP | $14.99 | one-time |
| Factory Sample Content | $19.99 | one-time |

**What reviewers like**

- 🌟 Incredible sound quality
- 🎨 Vast library of high-quality samples
- 🔧 Powerful sound customization options
- 🤝 Excellent customer support
- 💻 Seamless integration with DAWs

**What reviewers complain about**

- 🐛 Stability issues and frequent crashes
- 📦 Extremely large file size
- 🤯 Confusing and cluttered user interface
- 🔍 Difficulty accessing purchased content
- 🔁 Recurring issues with updates

**Reported bugs**

- Purchased content disappearing after updates
- Synth not responding or producing sound in DAWs
- Glitches and audio dropouts during playback
- Incompatibility issues with certain iOS versions
- Inconsistent behavior across different devices

**Requested features**

- MIDI learn capabilities for all parameters
- Improved preset management and organization
- Ability to import custom wavetables and samples
- Dedicated sound design tools and modulation options
- Better integration with external storage devices


### ConnectionOpen

[App page](https://appshunter.io/ios/app/connectionopen/id1500409403)

Experience real-time, high-quality audio and video collaboration with near-zero latency. Ideal for musicians, podcasters, and voiceover artists to connect and create together remotely, as if in the same room.

**Highlights:** Uncompressed, high-quality audio, Low-latency live video streaming, Real-time online collaboration, Remote jamming and practice for musicians, Live podcast recording with guests, Voiceover work with live feedback

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Plan | $24.99 | per month |
| Standard Plan | $49.99 | per month |
| Pro Plan | $99.99 | per month |
| Day Pass | $9.99 | one-time |


## Frequently asked questions

### Is Pure Synth® Platinum free?

Pure Synth® Platinum is free to download, with in-app purchases available.

### Is ConnectionOpen free?

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

### Which has better reviews, Pure Synth® Platinum or ConnectionOpen?

ConnectionOpen is rated higher. Pure Synth® Platinum averages 3.6 out of 5 from 54 ratings, while ConnectionOpen averages 5.0 from 4 ratings.

### Do Pure Synth® Platinum or ConnectionOpen have ads?

Neither Pure Synth® Platinum nor ConnectionOpen shows ads.

### Which is updated more often, Pure Synth® Platinum or ConnectionOpen?

Pure Synth® Platinum ships an update every 3 months, and ConnectionOpen every 2 months. Most recently, Pure Synth® Platinum was updated on October 20, 2026 and ConnectionOpen on October 5, 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.*