# ARC vs Rithmatic

The clearest difference is review sentiment: Rithmatic at 67% against ARC's 33%. Rithmatic also leads on monetization model (free vs free with in-app purchases) and rating (4.6 vs 4.3). On price, ads and in-app purchases there is nothing between them.

Both are free to download. ARC sells 2 one-off in-app purchases and Rithmatic sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Rithmatic holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 3 and 9 respectively. Written reviews point the same way: 33% of ARC's written reviews are positive against 67% of Rithmatic's.

ARC ships an update weekly, Rithmatic every 2 days. The most recent releases landed on October 31, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | ARC | Rithmatic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (3 ratings)](https://appshunter.io/ios/app/arc-24-multitrack-groovebox/id6773901604/reviews) | **[4.6 (9 ratings)](https://appshunter.io/ios/app/rithmatic-fm-synth/id6794107110/reviews)** |
| Number of ratings | 3 | **9** |
| Positive reviews | 33.3% of reviews | **66.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 2 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 52 MB | 61 MB |
| Requires iOS | 18.1 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Daelan Wood](https://appshunter.io/developer/1781308426) | [MADE WITH BEST PRACTICE LLC](https://appshunter.io/developer/6779338119) |

## What reviewers say

### ARC

[App page](https://appshunter.io/ios/app/arc-24-multitrack-groovebox/id6773901604)

Create music with a versatile groovebox featuring eight tracks for synths, samplers, and drums. Its intuitive interface allows for real-time performance and easy arrangement into songs, all while staying in key and scale.

**Highlights:** Eight dynamic tracks (synth, sampler, drums), Key and scale locked note/chord pads, 16-pad sampler with import/record, Deep synth editing and 25 arpeggiator patterns, Full mixer with EQ and individual track effects, Song mode for arrangement and live performance, MIDI input and iCloud sync

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7-Day Trial | Free | one-time |
| ARC-24 Full Version | $9.99 | one-time |


### Rithmatic

[App page](https://appshunter.io/ios/app/rithmatic-fm-synth/id6794107110)

This app is an FM synthesizer with a vast library of classic voices. It allows users to explore, learn, build, and blend sounds, and can be used as a standalone instrument or an AUv3 plugin within DAWs. It offers a visual representation of sound and a patch builder for understanding FM synthesis.

**Highlights:** 36,118 classic DX7 voices included, AUv3 plugin for DAWs, Patch Builder for learning FM synthesis, Sound blending feature, On-screen and MIDI keyboard support, Arpeggiator and latch functionality, WAV recording and export

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $4.99 | one-time |
| Medium Tip | $9.99 | one-time |
| Large Tip | $19.99 | one-time |
| Extra Large Tip | $49.99 | one-time |


## Frequently asked questions

### Is ARC free?

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

### Is Rithmatic free?

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

### Which has better reviews, ARC or Rithmatic?

Rithmatic is rated higher. ARC averages 4.3 out of 5 from 3 ratings, while Rithmatic averages 4.6 from 9 ratings.

### Do ARC or Rithmatic have ads?

Neither ARC nor Rithmatic shows ads.

### Which is updated more often, ARC or Rithmatic?

ARC ships an update weekly, and Rithmatic every 2 days. Most recently, ARC was updated on October 31, 2026 and Rithmatic on November 1, 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.*