# SoundPrism vs Aparillo

The clearest difference is rating: Aparillo at 4.9 against SoundPrism's 4.2. Aparillo also leads on ratings volume (507 vs 74). SoundPrism's advantage is device support (3 vs 1) and iOS requirement (9.0 vs 17.6). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. SoundPrism sells 10 one-off in-app purchases and Aparillo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Aparillo holds the better App Store score, 4.9 against 4.2. That said, the two scores are not equally well evidenced: Aparillo has 507 ratings behind it against 74, so its average is the more settled of the two. Written reviews point the same way: 85% of SoundPrism's written reviews are positive against 89% of Aparillo's.

SoundPrism ships an update every 3 months, Aparillo every 4 months. The most recent releases landed on October 14, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | SoundPrism | Aparillo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (74 ratings)](https://appshunter.io/ios/app/soundprism/id386833491/reviews) | **[4.9 (507 ratings)](https://appshunter.io/ios/app/aparillo/id1439914019/reviews)** |
| Number of ratings | 74 | **507** |
| Positive reviews | 84.6% of reviews | **88.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 136 MB | 55 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Grace Cloud GmbH](https://appshunter.io/developer/1542330108) | [Sugar Bytes GmbH](https://appshunter.io/developer/614418826) |

## What reviewers say

### SoundPrism

[App page](https://appshunter.io/ios/app/soundprism/id386833491)

Create beautiful music immediately with intuitive controls and unique pitch visualization. Compose melodies, tone, and chord patterns effortlessly, even without prior knowledge. Easily make ringtones, record, and email your creations, or play along to other music apps.

**Highlights:** Intuitive music composition, Unique pitch visualization, Create ringtones, Record and email compositions, Background audio playback

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Guitar Sounds | $0.99 | one-time |
| Trance Soundpack SoundPrism | $0.99 | one-time |
| Choir Soundpack | $0.99 | one-time |
| Organ SoundPack | $0.99 | one-time |
| Airy Pad Sound Pack | $0.99 | one-time |
| Euro Synth Sound Pack | $0.99 | one-time |
| Lead Synth Sound Pack | $0.99 | one-time |
| Snow Skin | $1.99 | one-time |
| Midnight Skin | $1.99 | one-time |
| Sound Bundle 1 | $1.99 | one-time |

**What reviewers like**

- 👍 Intuitive and easy to use
- 🎨 Visually appealing interface
- 🎶 Produces great-sounding music
- 🧠 Helpful for learning music theory
- 🤩 Fun and creative experience

**What reviewers complain about**

- 🐛 Frequent crashes and stability issues
- 🔊 Limited sound selection
- 💰 Expensive in-app purchases
- 🔇 No background playback or looping
- 🔍 Confusing menu navigation

**Reported bugs**

- Crashes on newer iOS devices
- Multitouch issues causing app to freeze
- Playback problems and audio glitches
- Inconsistent performance across different devices

**Requested features**

- Add more sound packs and instruments
- Implement recording and editing capabilities
- Allow for more customization and control over sounds
- Improve MIDI integration and compatibility
- Provide an upgrade path from free to pro version


### Aparillo

[App page](https://appshunter.io/ios/app/aparillo/id1439914019)

This advanced FM synthesizer creates complex soundscapes, atmospheres, and a wide range of timbres for film, TV, and games. It features two interacting FM synths, integrated effects, and an intuitive 'Orbiter' for one-touch sound morphing. Seamlessly integrate with your mobile studio setup via MIDI and Audio Unit v3 support.

**Highlights:** 16-voice FM Synthesizer, Complex sound design, Integrated FX (Filter, Delay, Reverb, Spacializer), Orbiter for sound morphing, Standalone & Audio Unit v3 support, MIDI and Ableton Link integration, iCloud Preset Sync

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aparillo Full Version | $24.99 | one-time |

**What reviewers like**

- 🚀 Powerful sound design capabilities
- 👍 Intuitive and creative interface
- 🎨 Cinematic and otherworldly sounds
- 💡 Innovative orbit and spatial features
- 🔥 Excellent presets and sound quality

**What reviewers complain about**

- 🐛 Occasional crashes and stability issues
- 🔍 Lack of clear documentation and tutorials
- 📱 UI not optimized for larger iPad screens
- 💰 Paid upgrade required for full functionality

**Reported bugs**

- Saved patches not compatible across versions
- Orbiter parameters not accessible on latest iOS

**Requested features**

- More preset packs and sound libraries
- Improved MIDI and automation support
- Custom tuning and scale options
- Expanded keyboard and note range


## Frequently asked questions

### Is SoundPrism free?

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

### Is Aparillo free?

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

### Which has better reviews, SoundPrism or Aparillo?

Aparillo is rated higher. SoundPrism averages 4.2 out of 5 from 74 ratings, while Aparillo averages 4.9 from 507 ratings.

### Do SoundPrism or Aparillo have ads?

Neither SoundPrism nor Aparillo shows ads.

### Which is updated more often, SoundPrism or Aparillo?

SoundPrism ships an update every 3 months, and Aparillo every 4 months. Most recently, SoundPrism was updated on October 14, 2026 and Aparillo on October 21, 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.*