# RhythmOn vs Logic Dots (Mastermind)

The clearest difference is ads: RhythmOn at none against Logic Dots (Mastermind)'s shown. RhythmOn also leads on update cadence (fortnightly vs every 5 weeks) and iOS requirement (15.6 vs 17.0). On price, in-app purchases and device support there is nothing between them.

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

RhythmOn ships an update fortnightly, Logic Dots (Mastermind) every 5 weeks. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | RhythmOn | Logic Dots (Mastermind) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Size | 127 MB | 43 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aahana Productions LLP](https://appshunter.io/developer/1704838192) | [Vadym Kulynych](https://appshunter.io/developer/1725262773) |

## What reviewers say

### RhythmOn

[App page](https://appshunter.io/ios/app/rhythmon/id6463722717)

**Features:** Vision Pro support

**In-app purchases:** none


### Logic Dots (Mastermind)

[App page](https://appshunter.io/ios/app/logic-dots-mastermind/id6475809187)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RhythmOn free?

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

### Is Logic Dots (Mastermind) free?

Logic Dots (Mastermind) is free to download, with no in-app purchases.

### Do RhythmOn or Logic Dots (Mastermind) have ads?

Logic Dots (Mastermind) shows ads; RhythmOn does not.

### Which is updated more often, RhythmOn or Logic Dots (Mastermind)?

RhythmOn ships an update fortnightly, and Logic Dots (Mastermind) every 5 weeks. Most recently, RhythmOn was updated on October 9, 2026 and Logic Dots (Mastermind) on October 4, 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.*