# Osculatrix vs C.ARP

The clearest difference is price: Osculatrix at Free against C.ARP's $9.99. Osculatrix also leads on rating (5.0 vs 4.3) and review sentiment (100% vs 74%). C.ARP's advantage is ratings volume (114 vs 7) and iOS requirement (13.0 vs 15.0). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Osculatrix is free to download; C.ARP costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Osculatrix holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: C.ARP has 114 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 100% of Osculatrix's written reviews are positive against 74% of C.ARP's.

Osculatrix ships an update monthly, C.ARP every 4 weeks. The most recent releases landed on June 22, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Osculatrix | C.ARP |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/osculatrix/id1046389107/reviews)** | [4.3 (114 ratings)](https://appshunter.io/ios/app/carp/id1481916004/reviews) |
| Number of ratings | 7 | **114** |
| Positive reviews | **100.0% of reviews** | 74.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 weeks** |
| Monetization | Free | Free |
| Size | 2 MB | 45 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Matthew Caldwell](https://appshunter.io/developer/993500585) | [Paolo Giorgi](https://appshunter.io/developer/1481916003) |

## What reviewers say

### Osculatrix

[App page](https://appshunter.io/ios/app/osculatrix/id1046389107)

This audio effect plugin offers modulated filters, delays, and saturation for creative sound design. It can transform audio from subtle coloration to complete destruction. Use it within your favorite music production apps.

**Highlights:** Modulated filters, Delay effects, Saturation, AUv3 plugin, Subtle coloration to destruction

**Features:** Vision Pro support

**In-app purchases:** none


### C.ARP

[App page](https://appshunter.io/ios/app/carp/id1481916004)

This app offers a unique approach to music creation, inspired by vintage instruments. It allows users to play chords and melodies with intuitive touch controls, apply real-time audio effects, and utilize a dynamic rhythm section. Advanced features include sampling, MIDI output via Bluetooth, and an iPad-optimized interface.

**Highlights:** Chord and melody playing, Real-time audio effects, Dynamic rhythm section, Sampling and looping, MIDI output via Bluetooth, iPad optimized interface, In-app tutorial

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🎶 Authentic omnichord sound
- 💡 Great for learning music theory
- 🤩 Fun and enjoyable to use
- 📱 Accessible on mobile devices
- 💰 Affordable alternative to real omnichord

**What reviewers complain about**

- 🔊 No sound issue
- 💥 Frequent crashes
- 🤔 Confusing interface/menus
- 🐌 Slow UI responsiveness
- 🎚️ Limited sound design options

**Reported bugs**

- Sound doesn't work
- No sound
- App crashes when opening
- App crashes when trying to open
- App auto-quits on start

**Requested features**

- Rearrange layout to be chromatic
- AUV3 support
- Inter-app-audio / GarageBand integration
- MIDI out functionality
- Save last state


## Frequently asked questions

### Is Osculatrix free?

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

### Is C.ARP free?

C.ARP costs $9.99, with no in-app purchases.

### Which has better reviews, Osculatrix or C.ARP?

Osculatrix is rated higher. Osculatrix averages 5.0 out of 5 from 7 ratings, while C.ARP averages 4.3 from 114 ratings.

### Do Osculatrix or C.ARP have ads?

Neither Osculatrix nor C.ARP shows ads.

### Which is updated more often, Osculatrix or C.ARP?

Osculatrix ships an update monthly, and C.ARP every 4 weeks. Most recently, Osculatrix was updated on June 22, 2026 and C.ARP on September 22, 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.*