# Radiooooo vs Dual N

The clearest difference is rating: Dual N at 4.7 against Radiooooo's 4.0. Dual N also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (13.0 vs 15.0). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Radiooooo sells 2 in-app purchases, starting at $4.49 per month and Dual N sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Dual N holds the better App Store score, 4.7 against 4.0. Both are backed by a comparable volume of ratings — 774 and 1.2K respectively. Written reviews complicate that: 58% of Radiooooo's written reviews are positive against 55% of Dual N's, so the app with the better star average is not the one people write more warmly about.

Radiooooo ships an update every 2 months, Dual N every 3 weeks. Both last shipped on November 6, 2026.

## The numbers

| Metric | Radiooooo | Dual N |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (774 ratings)](https://appshunter.io/ios/app/radiooooo/id893151807/reviews) | **[4.7 (1.2K ratings)](https://appshunter.io/ios/app/dual-n-back/id1375327852/reviews)** |
| Number of ratings | 774 | **1.2K** |
| Positive reviews | **57.8% of reviews** | 55.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 12 MB | 33 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [RADIOOOOO](https://appshunter.io/developer/1071729050) | [Jens Grud](https://appshunter.io/developer/1146280423) |

## What reviewers say

### Radiooooo

[App page](https://appshunter.io/ios/app/radiooooo/id893151807)

Explore music from any country and decade. This app offers a curated selection of global music, allowing you to discover new sounds and artists. It's a collaborative platform built by music enthusiasts.

**Highlights:** Discover music by country, Explore music by decade, Curated musical selections, Collaborative music platform, Human-curated playlists

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited access | $4.49 | per month |
| Unlimited access | $45.99 | per year |

**What reviewers like**

- 🎶 Amazing music discovery
- 🌍 Diverse global music selection
- 🎨 Beautiful and intuitive UI
- 💎 Unique and innovative concept

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- 🔒 Login/account issues
- 🔇 Limited free features, paywall
- 🗺️ Restricted country/decade access in free version

**Reported bugs**

- Music playback issues
- Inconsistent login/account functionality
- Outdated/incorrect music metadata

**Requested features**

- Ability to save/replay liked songs
- Improved music search and filtering
- Integration with music streaming services
- More genre/subgenre options


### Dual N

[App page](https://appshunter.io/ios/app/dual-n-back/id1375327852)

This app offers a scientifically proven memory workout by challenging users to remember both the position of a square and a spoken letter. The difficulty increases as users improve, requiring them to recall information from a specified number of turns ago.

**Highlights:** Memory and position recall, Progress tracking, Adjustable game duration, Automatic level adjustment, Dark Mode support, Export gameplay data

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dual N-Back pro | $0.99 | per month |
| Dual N-back pro | $7.99 | per year |

**What reviewers like**

- 🚀 Effective memory training
- 👍 Simple and intuitive interface
- 🔒 No ads
- 💡 Customizable settings
- 👍 Solid dual n-back app

**What reviewers complain about**

- 🐛 Buggy behavior (unregistered clicks, sound issues)
- 💰 Subscription model for higher levels
- 🔍 Lack of clear instructions
- 🔍 Difficult for beginners
- 🔍 Uneven interval lengths

**Reported bugs**

- Sudden change in sound/language
- Accidental stop button presses
- Inconsistent level adjustments
- Scoring issues (e.g., combining square and sound scores)
- Compatibility problems on certain devices

**Requested features**

- Add N=1 level for beginners
- Improve statistics and progress tracking
- Allow changing sounds/visuals
- Extend game duration beyond 60 seconds
- Provide more detailed instructions


## Frequently asked questions

### Is Radiooooo free?

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

### Is Dual N free?

Dual N is free to download, with in-app purchases available.

### Which has better reviews, Radiooooo or Dual N?

Dual N is rated higher. Radiooooo averages 4.0 out of 5 from 774 ratings, while Dual N averages 4.7 from 1.2K ratings.

### Do Radiooooo or Dual N have ads?

Neither Radiooooo nor Dual N shows ads.

### Which is updated more often, Radiooooo or Dual N?

Radiooooo ships an update every 2 months, and Dual N every 3 weeks. Most recently, Radiooooo was updated on November 6, 2026 and Dual N on November 6, 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.*