Refraktions vs Jamulator
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.
Jamulator
Create musical arrangements quickly using intuitive grids and over 100 instruments. Collaborate with friends on jam sessions and share your creations with the community. Features a sampler for recording and manipulating audio.
- Player-piano-like grid interface
- Over 100 instrument voices
- Real-time collaborative jamming
- Audio sampler with pitch manipulation
- Publish and share creations
- Quantization for musical results
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Using player-piano-like grids, finger paint drums, then choose from over 100 other instruments to create musical arrangements in just minutes. You can zoom in to arrange your notes with precision, or just swipe and see what sounds come out. Quantization makes most of your casual swipes sound interesting and musical. Once you have something you like, you can forward it to friends so they can add parts to the jam session. When you think it's finished, you can publish it for all app users to listen to. There is also a sampler that lets you record audio, and then play notes of different pitch using the same player-piano-like grid. You can make your voice sound like a chipmunk, or like Darth Vader. A very high quality musical instrument using general MIDI 2 standard voices. New in 2.1.0: Live realtime jamming. There is still a little lag, but because of the metronome it feels like you are actually jamming. You are certainly interacting musically in close to realtime.
Screenshots
Verdict
The clearest difference is price: Jamulator at Free against Refraktions's $5.99. Jamulator also leads on update cadence (weekly vs every 2 months) and review sentiment (100% vs 90%). Refraktions's advantage is rating (4.5 vs 3.8) and in-app purchases (none vs 1). On ads 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
Jamulator is free to download; Refraktions costs $5.99 up front. Jamulator sells 1 one-off in-app purchase. Refraktions asks for nothing beyond the download.
Refraktions holds the better App Store score, 4.5 against 3.8. That said, the two scores are not equally well evidenced: Refraktions has 28 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 90% of Refraktions's written reviews are positive against 100% of Jamulator's, so the app with the better star average is not the one people write more warmly about.
Refraktions ships an update every 2 months, Jamulator weekly. The most recent releases landed on September 24, 2026 and October 5, 2026 respectively.
| Parameter | Refraktions | Jamulator |
|---|---|---|
| Price | $5.99 | Free — better |
| Rating | 4.5 (28 ratings) — better | 3.8 (5 ratings) |
| Positive reviews | 90.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 28 — better | 5 |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.3 | 11.0 — better |
| Further details — not scored | ||
| Size | 26 MB | 159 MB |
| Age rating | 4+ | 4+ |
| Developer | Jason Snell | Eric Ford |
Customer experience
Refraktions
Jamulator
In-app purchases
Refraktions
No in-app purchases
Jamulator
- Remove Ads$0.99
