# Cubic Isles vs Neuro.Nook

The clearest difference is in-app purchases: Cubic Isles at none against Neuro.Nook's 10. Cubic Isles also leads on update cadence (every 6 weeks vs every 3 months). Neuro.Nook's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Neuro.Nook sells 10 one-off in-app purchases. Cubic Isles asks for nothing beyond the download.

Cubic Isles ships an update every 6 weeks, Neuro.Nook every 3 months. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Cubic Isles | Neuro.Nook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/neuronook-brain-games/id6754170267/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | — | Free with in-app purchases |
| Size | 12 MB | 36 MB |
| Requires iOS | 18.0 | **17.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Claudio Souza Mattos](https://appshunter.io/developer/1774316937) | [Epic Genius LLC](https://appshunter.io/developer/1193070219) |

## What reviewers say

### Cubic Isles

[App page](https://appshunter.io/ios/app/cubic-isles/id6553995539)

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

**In-app purchases:** none


### Neuro.Nook

[App page](https://appshunter.io/ios/app/neuronook-brain-games/id6754170267)

Engage in daily, science-backed brain training games designed to enhance memory, attention, logic, and processing speed. Track your progress, build streaks, and unlock achievements with quick, adaptive sessions that fit into your busy schedule.

**Highlights:** Memory and working memory training, Attention and response inhibition exercises, Logic and reasoning puzzles, Processing speed and reaction time challenges, Language and word skill games, Adaptive difficulty modes, Offline play capability

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| nn_riddle_reveal_10 | $0.99 | one-time |
| nn_riddle_hint_10 | $0.99 | one-time |
| nn_math_5050_10 | $0.99 | one-time |
| nn_emoji_pack_1 | $1.99 | one-time |
| nn_riddle_hint_20 | $1.99 | one-time |
| nn_riddle_reveal_20 | $1.99 | one-time |
| nn_math_5050_20 | $1.99 | one-time |
| nn_riddle_reveal_40 | $2.99 | one-time |
| nn_riddle_hint_40 | $2.99 | one-time |
| nn_math_5050_40 | $2.99 | one-time |


## Frequently asked questions

### Is Cubic Isles free?

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

### Is Neuro.Nook free?

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

### Do Cubic Isles or Neuro.Nook have ads?

Cubic Isles shows ads; Neuro.Nook does not.

### Which is updated more often, Cubic Isles or Neuro.Nook?

Cubic Isles ships an update every 6 weeks, and Neuro.Nook every 3 months. Most recently, Cubic Isles was updated on November 4, 2026 and Neuro.Nook on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*