Refraktions vs Soi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Refraktions
This app is an 8-track generative MIDI sequencer that uses AI to create personalized loops based on user input over time. It offers a unique approach to music creation, adapting to individual preferences.
- 8-track generative MIDI sequencing
- Artificial intelligence processing
- Time-based input adaptation
- Personalized loop creation
- User-tailored output
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Refraktions is an 8-track generative MIDI sequencer with artificial intelligence that processes input over time to create loops tailored to each individual user.
Soi
Create and improvise music with others in real-time. This expressive instrument allows groups of any size to perform together, automatically harmonizing and synchronizing participants for an engaging experience where there are no wrong notes.
- Real-time music creation
- Group improvisation
- Automatic harmonization
- Participant synchronization
- Ensemble performance
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Become part of the magic of creation and improvisation. Join in with friends, family, or anyone and make music together. Soi is an expressive instrument that allows for a group of any size to perform as an ensemble. Soi automatically harmonises and synchronises each of the participants to help everyone to feel engaged. There are no wrong notes!
Screenshots
Verdict
The clearest difference is review sentiment: Refraktions at 90% against Soi's 0%. Refraktions also leads on rating (4.5 vs 4.0) and ratings volume (28 vs 2). Soi's advantage is price (Free vs $5.99) and iOS requirement (10.3 vs 14.3). On update cadence, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Soi is free to download; Refraktions costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Refraktions holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Refraktions has 28 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 90% of Refraktions's written reviews are positive against 0% of Soi's.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.
| Parameter | Refraktions | Soi |
|---|---|---|
| Price | $5.99 | Free — better |
| Rating | 4.5 (28 ratings) — better | 4.0 (2 ratings) |
| Positive reviews | 90.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 28 — better | 2 |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.3 | 10.3 — better |
| Further details — not scored | ||
| Size | 26 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Jason Snell | Aero Deko |
Customer experience
Refraktions
Soi
In-app purchases
Refraktions
No in-app purchases
Soi
No in-app purchases
