# Kalliopeia vs ARPJAM Studio

The clearest difference is review sentiment: ARPJAM Studio at 100% against Kalliopeia's 50%. ARPJAM Studio also leads on rating (5.0 vs 3.5) and update cadence (every 2 days vs every 2 months). Kalliopeia's advantage is price ($4.99 vs $12.99). On ads, in-app purchases and monetization model there is nothing between them.

Kalliopeia costs $4.99 and ARPJAM Studio $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ARPJAM Studio holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 2 and 6 respectively. Written reviews point the same way: 50% of Kalliopeia's written reviews are positive against 100% of ARPJAM Studio's.

Kalliopeia ships an update every 2 months, ARPJAM Studio every 2 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Kalliopeia | ARPJAM Studio |
| --- | --- | --- |
| Price | **$4.99** | $12.99 |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/kalliopeia/id1063951043/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/arpjam-studio/id6775859535/reviews)** |
| Number of ratings | 2 | **6** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Paid | Paid |
| Size | 2 MB | 84 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [YU HASHIZUME](https://appshunter.io/developer/654717473) | [Takashi Tsunoda](https://appshunter.io/developer/1884742586) |

## What reviewers say

### Kalliopeia

[App page](https://appshunter.io/ios/app/kalliopeia/id1063951043)

Experience your music in stunning detail with this high-resolution audio player. It supports a wide range of formats, offers advanced upsampling capabilities, and includes a powerful 11-band equalizer to customize your sound. Enjoy gapless playback, playlist creation, and more.

**Highlights:** High-res audio playback (DSF, DSD, FLAC, WAV, AIFF, ALAC, AAC, MP3), Audio upsampling to 192kHz, 11-band equalizer with presets, Gapless playback, Playlist creation and waitlist, Last.fm scrobbling

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

**In-app purchases:** none


### ARPJAM Studio

[App page](https://appshunter.io/ios/app/arpjam-studio/id6775859535)

This app offers a generative synthesizer experience focused on sound design without requiring keyboard skills. It allows users to shape waveforms, filters, and effects in real-time as music plays, offering a unique approach to music creation for those who enjoy sound sculpting.

**Highlights:** Generative arpeggios with multiple waveforms, Probability-based drum generation, Chord progression locking, Real-time XY pad parameter control, Assignable LFOs for dynamic sound shaping, Play pad for layering live input, Preset saving and sharing

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Kalliopeia free?

Kalliopeia costs $4.99, with no in-app purchases.

### Is ARPJAM Studio free?

ARPJAM Studio costs $12.99, with no in-app purchases.

### Which has better reviews, Kalliopeia or ARPJAM Studio?

ARPJAM Studio is rated higher. Kalliopeia averages 3.5 out of 5 from 2 ratings, while ARPJAM Studio averages 5.0 from 6 ratings.

### Do Kalliopeia or ARPJAM Studio have ads?

Neither Kalliopeia nor ARPJAM Studio shows ads.

### Which is updated more often, Kalliopeia or ARPJAM Studio?

Kalliopeia ships an update every 2 months, and ARPJAM Studio every 2 days. Most recently, Kalliopeia was updated on October 24, 2026 and ARPJAM Studio on October 25, 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.*