# Strange Loop vs OttavaBassa

The clearest difference is price: Strange Loop at Free against OttavaBassa's $3.99. OttavaBassa's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 15.0). On ads and device support there is nothing between them.

Strange Loop is free to download; OttavaBassa costs $3.99 up front. Strange Loop sells 1 one-off in-app purchase. OttavaBassa asks for nothing beyond the download.

## The numbers

| Metric | Strange Loop | OttavaBassa |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/strange-loop-chaos-melody/id6795408783/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 23 MB | 18 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod, Mac | iPhone, iPad, iPod, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Soft Brew Mobile](https://appshunter.io/developer/561703410) | [Rob Jackson](https://appshunter.io/developer/1072346998) |

## What reviewers say

### Strange Loop

[App page](https://appshunter.io/ios/app/strange-loop-chaos-melody/id6795408783)

This app generates unique melodies using chaos theory and music theory principles. Save your creations as MIDI files or use them as an AUV3 plugin. You can influence the sound by interacting directly with the visual representation of the attractors.

**Highlights:** Melody generation using Lorenz attractors, Markov policy for taste customization, Save melodies as MIDI, AUV3 plugin for instruments/MIDI processing, Interactive attractor influence via painting

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock AUV3 Plugin | $1.99 | one-time |


### OttavaBassa

[App page](https://appshunter.io/ios/app/ottavabassa/id6803481561)

**In-app purchases:** none


## Frequently asked questions

### Is Strange Loop free?

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

### Is OttavaBassa free?

OttavaBassa costs $3.99, with no in-app purchases.

### Do Strange Loop or OttavaBassa have ads?

Neither Strange Loop nor OttavaBassa shows ads.

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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.*