# Nuddle vs Subliminal Brain Training

The clearest difference is update cadence: Subliminal Brain Training at every 3 days against Nuddle's weekly. Nuddle's advantage is iOS requirement (13.0 vs 15.5). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Nuddle sells 1 one-off in-app purchase and Subliminal Brain Training sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Nuddle ships an update weekly, Subliminal Brain Training every 3 days. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Nuddle | Subliminal Brain Training |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (8 ratings)](https://appshunter.io/ios/app/nuddle-number-sequences/id1643422440/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 42 MB | 5 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SCHMUT WEISS GmbH](https://appshunter.io/developer/1529893097) | [Paul Dobson](https://appshunter.io/developer/1500443571) |

## What reviewers say

### Nuddle

[App page](https://appshunter.io/ios/app/nuddle-number-sequences/id1643422440)

Engage your mind with daily number sequence puzzles. Discover the underlying system to find the missing digits and build your solving streak. Enjoy unlimited random puzzles and share challenges with friends.

**Highlights:** Daily global number puzzles, Infinite random sequences, Streak building system, Local puzzle caching, Share puzzles with friends, Recognize number systems

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $4.99 | one-time |


### Subliminal Brain Training

[App page](https://appshunter.io/ios/app/subliminal-brain-training/id6717612809)

Enhance your memory and cognitive skills with this engaging game. Challenge your quick-recall abilities with rapidly flashing numbers that adapt to your performance. Daily sessions can significantly improve mental agility and focus.

**Highlights:** Quick daily memory sessions, Adaptive difficulty adjusts to performance, Progressive levels with increasing digits, Subliminal number flashes at advanced stages, User-friendly interface, Progress tracking and personal bests

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is Nuddle free?

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

### Is Subliminal Brain Training free?

Subliminal Brain Training is free to download, with in-app purchases available.

### Do Nuddle or Subliminal Brain Training have ads?

Neither Nuddle nor Subliminal Brain Training shows ads.

### Which is updated more often, Nuddle or Subliminal Brain Training?

Nuddle ships an update weekly, and Subliminal Brain Training every 3 days. Most recently, Nuddle was updated on October 2, 2026 and Subliminal Brain Training on October 1, 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.*