# Orphion vs ThermoSynth

The clearest difference is price: Orphion at $3.99 against ThermoSynth's $34.99. Orphion also leads on review sentiment (85% vs 50%) and ratings volume (31 vs 4). ThermoSynth's advantage is rating (5.0 vs 4.0) and in-app purchases (none vs 1). On update cadence, ads and device support there is nothing between them.

Orphion costs $3.99 and ThermoSynth $34.99 up front. Orphion sells 1 one-off in-app purchase. ThermoSynth asks for nothing beyond the download.

ThermoSynth holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Orphion has 31 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 85% of Orphion's written reviews are positive against 50% of ThermoSynth's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Orphion | ThermoSynth |
| --- | --- | --- |
| Price | **$3.99** | $34.99 |
| Rating | [4.0 (31 ratings)](https://appshunter.io/ios/app/orphion/id495465097/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/thermosynth/id1619491705/reviews)** |
| Number of ratings | **31** | 4 |
| Positive reviews | **84.7% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 27 MB | 25 MB |
| Requires iOS | **7.0** | 9.3 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bastus Trump](https://appshunter.io/developer/495465100) | [SonicPlanet Audio Video Teknolojileri Anonim Sti.](https://appshunter.io/developer/946568989) |

## What reviewers say

### Orphion

[App page](https://appshunter.io/ios/app/orphion/id495465097)

Create expressive music and melodies with a unique virtual instrument. Explore your creativity through intuitive finger movements on virtual pads, generating sounds between string and percussion. Ideal for both beginners and experienced musicians.

**Highlights:** Unique string and percussion sound, Expressive polyphonic music, Intuitive finger pad interaction, Customizable pad layouts, MIDI and Audiobus support, Multiple articulations

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Orphion Editor | $0.99 | one-time |

**What reviewers like**

- 🎵 Unique and expressive musical instrument design
- 👍 Intuitive touch interface for playing music
- 🎛️ Customizable pad layouts and configurations
- 🔌 Works well as MIDI controller for other apps
- 🎨 Beautiful, simple, and elegant user interface

**What reviewers complain about**

- 🐛 Audio crackling and distortion issues on recent iPadOS versions
- ❌ App crashes and fails to launch on newer devices
- 📱 UI rendering problems on iPad mini and newer iPad models
- 🔧 Abandoned by developer - no updates or support
- 🚫 Incompatible with latest iPadOS (18+)

**Reported bugs**

- Audio crackling and distortion on iPadOS 18 and M4 devices
- App crashes on startup with recent iPad OS versions
- UI elements out of place on iPad mini
- MIDI not working in AUM and other DAWs
- Virtual MIDI instruments not detected when loaded as IAA

**Requested features**

- Recording and export functionality
- Additional sound patches and voices
- Custom scale and layout editor
- Pitch bend and modulation wheel controls
- AudioCopy/Paste support


### ThermoSynth

[App page](https://appshunter.io/ios/app/thermosynth/id1619491705)

This app is a generative synthesizer that creates evolving sonic structures inspired by thermodynamic systems. It features a self-regulating hyper oscillator engine with a feedback matrix and stochastic modulators for unique, never-repeating drone synthesis and organic textures.

**Highlights:** Self-regulating hyper oscillator engine, Generative synthesis at waveform level, 4x4 feedback matrix for oscillator interaction, Stochastic modulators for sonic changes, User-controlled injections for system perturbation, MPE support, High-resolution rotary encoder MIDI mapping

**In-app purchases:** none


## Frequently asked questions

### Is Orphion free?

Orphion costs $3.99, and also offers in-app purchases.

### Is ThermoSynth free?

ThermoSynth costs $34.99, with no in-app purchases.

### Which has better reviews, Orphion or ThermoSynth?

ThermoSynth is rated higher. Orphion averages 4.0 out of 5 from 31 ratings, while ThermoSynth averages 5.0 from 4 ratings.

### Do Orphion or ThermoSynth have ads?

Neither Orphion nor ThermoSynth shows ads.

### Which is updated more often, Orphion or ThermoSynth?

Orphion ships an update every 2 months, and ThermoSynth every 2 months. Most recently, Orphion was updated on October 13, 2026 and ThermoSynth on October 6, 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.*