# The Oscillator vs Aparillo

The clearest difference is rating: Aparillo at 4.9 against The Oscillator's 4.3. Aparillo also leads on ratings volume (507 vs 58). The Oscillator's advantage is in-app purchases (none vs 1) and device support (3 vs 1). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Aparillo sells 1 one-off in-app purchase. The Oscillator asks for nothing beyond the download.

Aparillo holds the better App Store score, 4.9 against 4.3. That said, the two scores are not equally well evidenced: Aparillo has 507 ratings behind it against 58, so its average is the more settled of the two. Written reviews point the same way: 85% of The Oscillator's written reviews are positive against 89% of Aparillo's.

The Oscillator ships an update every 5 months, Aparillo every 4 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | The Oscillator | Aparillo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (58 ratings)](https://appshunter.io/ios/app/the-oscillator/id640819682/reviews) | **[4.9 (507 ratings)](https://appshunter.io/ios/app/aparillo/id1439914019/reviews)** |
| Number of ratings | 58 | **507** |
| Positive reviews | 84.8% of reviews | **88.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 4 MB | 55 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kymatica AB](https://appshunter.io/developer/522046659) | [Sugar Bytes GmbH](https://appshunter.io/developer/614418826) |

## What reviewers say

### The Oscillator

[App page](https://appshunter.io/ios/app/the-oscillator/id640819682)

Generate tones and noise with adjustable lowpass filters and panning. Choose from sine, triangle, sawtooth, and square waveforms. Precisely tune frequencies in Hz or MIDI notes.

**Highlights:** Two oscillators, One noise generator, Individual lowpass filters, Panning control, Four waveforms (sine, triangle, sawtooth, square), Precise frequency tuning (Hz/MIDI), Audiobus and Inter-App Audio support

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 💡 Useful for various purposes (sleep, tinnitus, testing)
- 🎵 Good for sound experimentation
- 🔊 Precise frequency and gain control
- 🎚️ Multiple oscillators and noise generator

**What reviewers complain about**

- 🐛 Stopped working properly
- 🐛 Only noise comes out
- 🐛 Output levels wildly different
- 🐛 Not working in new version
- ❌ Basic and incomplete

**Reported bugs**

- Stopped working properly
- Only noise comes out
- Output levels wildly different
- New version is not working
- Can't play one osc without the other

**Requested features**

- More functions (e.g., shorten waves, good bass)
- Multiple layers for simultaneous playback
- AUV3 support
- Run in background and mix with audio
- Four oscillators simultaneously


### Aparillo

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

This advanced FM synthesizer is designed for creating complex, evolving soundscapes and atmospheres ideal for film, TV, and games. It offers deep sound design capabilities with two interacting synthesizers, integrated effects, and an intuitive 'mass-controller' for one-touch sound morphing. Seamlessly integrate it into your mobile studio setup with extensive MIDI and syncing options.

**Highlights:** 16-voice FM Synthesizer, Formant Shifting, Wave Folding & Shifting, Multi-Mode Filter with Spacializer, Orbiter for one-touch Sound Morphing, 500 handpicked Presets, Full MIDI Support, Preset iCloud 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 The Oscillator free?

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

### Is Aparillo free?

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

### Which has better reviews, The Oscillator or Aparillo?

Aparillo is rated higher. The Oscillator averages 4.3 out of 5 from 58 ratings, while Aparillo averages 4.9 from 507 ratings.

### Do The Oscillator or Aparillo have ads?

Neither The Oscillator nor Aparillo shows ads.

### Which is updated more often, The Oscillator or Aparillo?

The Oscillator ships an update every 5 months, and Aparillo every 4 months. Most recently, The Oscillator was updated on November 1, 2026 and Aparillo on November 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*