# Circlo vs Scouter Synth

The clearest difference is update cadence: Scouter Synth at every 4 weeks against Circlo's every 33 months. Circlo's advantage is ratings volume (5 vs 1) and iOS requirement (9.0 vs 17.0). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Circlo against 5.0 for Scouter Synth. That said, the two scores are not equally well evidenced: Circlo has 5 ratings behind it against 1, so its average is the more settled of the two.

Circlo ships an update every 33 months, Scouter Synth every 4 weeks. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Circlo | Scouter Synth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/circlo-ambient-clock/id523405247/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/scouter-synth/id6811156018/reviews) |
| Number of ratings | **5** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 4 weeks** |
| Monetization | Free | Free |
| Size | 14 MB | 7 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aero Deko](https://appshunter.io/developer/507882387) | [Andrew Scott](https://appshunter.io/developer/972402841) |

## What reviewers say

### Circlo

[App page](https://appshunter.io/ios/app/circlo-ambient-clock/id523405247)

This app offers a unique ambient audiovisual experience with a pulsating circle display and a dynamic soundtrack that changes intensity throughout the day. Users can customize color schemes and control the music through a simple double-tap interface.

**Highlights:** Ambient audiovisual clock, Dynamic soundtrack, Pulsating circle display, Customizable color schemes, Music on/off toggle, Intuitive double-tap controls

**Features:** macOS Compatibility

**In-app purchases:** none


### Scouter Synth

[App page](https://appshunter.io/ios/app/scouter-synth/id6811156018)

Create music with a retro handheld console interface. Compose melodies, add synth sounds or samples, and mix tracks with effects. Perform live with a touch-sensitive pad and punch-in effects.

**Highlights:** Eight-track music composition, Multiple synth voices and sample playback, On-board effects and mixing console, Performance pad for live parameter control, MIDI and Bluetooth controller support, Import and record audio samples

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

**In-app purchases:** none


## Frequently asked questions

### Is Circlo free?

Circlo is free to download, with no in-app purchases.

### Is Scouter Synth free?

Scouter Synth is free to download, with no in-app purchases.

### Which has better reviews, Circlo or Scouter Synth?

Circlo and Scouter Synth are both rated 5.0 out of 5 on the App Store, from 5 and 1 ratings respectively.

### Do Circlo or Scouter Synth have ads?

Neither Circlo nor Scouter Synth shows ads.

### Which is updated more often, Circlo or Scouter Synth?

Circlo ships an update every 33 months, and Scouter Synth every 4 weeks. Most recently, Circlo was updated on November 1, 2026 and Scouter Synth on October 31, 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.*