# eTRAP vs Pure Synth® Platinum

The clearest difference is in-app purchases: eTRAP at none against Pure Synth® Platinum's 13. eTRAP also leads on update cadence (every 5 weeks vs every 3 months). Pure Synth® Platinum's advantage is iOS requirement (11.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Pure Synth® Platinum sells 13 one-off in-app purchases. eTRAP asks for nothing beyond the download.

eTRAP ships an update every 5 weeks, Pure Synth® Platinum every 3 months. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | eTRAP | Pure Synth® Platinum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.6 (54 ratings)](https://appshunter.io/ios/app/pure-synth-platinum/id1459688500/reviews)** |
| Number of ratings | — | **54** |
| Positive reviews | — | 50.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | — | Free with in-app purchases |
| Size | 115 MB | 317 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [USDA MRPBS IT](https://appshunter.io/developer/984062774) | [MIDIculous LLC](https://appshunter.io/developer/579058990) |

## What reviewers say

### eTRAP

[App page](https://appshunter.io/ios/app/etrap/id1099214110)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is eTRAP free?

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

### Is Pure Synth® Platinum free?

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

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

Neither eTRAP nor Pure Synth® Platinum shows ads.

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

eTRAP ships an update every 5 weeks, and Pure Synth® Platinum every 3 months. Most recently, eTRAP was updated on October 26, 2026 and Pure Synth® Platinum on October 29, 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.*