# PhrenD vs Nuddle

The clearest difference is price: Nuddle at Free against PhrenD's $4.99. Nuddle also leads on update cadence (weekly vs every 3 months) and rating (4.9 vs 4.5). PhrenD's advantage is iOS requirement (11.0 vs 13.0). On ads, in-app purchases and device support there is nothing between them.

Nuddle is free to download; PhrenD costs $4.99 up front. PhrenD sells 1 in-app purchase, starting at $24.99 per month and Nuddle sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Nuddle holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 2 and 8 respectively.

PhrenD ships an update every 3 months, Nuddle weekly. The most recent releases landed on September 30, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | PhrenD | Nuddle |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [4.5 (2 ratings)](https://appshunter.io/ios/app/phrend/id1637676339/reviews) | **[4.9 (8 ratings)](https://appshunter.io/ios/app/nuddle-number-sequences/id1643422440/reviews)** |
| Number of ratings | 2 | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 117 MB | 42 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Lauren Flaherty](https://appshunter.io/developer/1637676341) | [SCHMUT WEISS GmbH](https://appshunter.io/developer/1529893097) |

## What reviewers say

### PhrenD

[App page](https://appshunter.io/ios/app/phrend/id1637676339)

This app provides a self-reported screener for cognitive health, categorizing likelihood for further testing. It also offers brain exercises targeting five cognitive domains and lifestyle activities to support mental and cognitive well-being. Diet and cognition information is continuously updated.

**Highlights:** Cognitive health screener, Brain exercises for 5 cognitive domains, Lifestyle exercises for mental well-being, Diet and cognition information, Self-reported assessment

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $24.99 | per month |


### 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 |


## Frequently asked questions

### Is PhrenD free?

PhrenD costs $4.99, and also offers in-app purchases.

### Is Nuddle free?

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

### Which has better reviews, PhrenD or Nuddle?

Nuddle is rated higher. PhrenD averages 4.5 out of 5 from 2 ratings, while Nuddle averages 4.9 from 8 ratings.

### Do PhrenD or Nuddle have ads?

Neither PhrenD nor Nuddle shows ads.

### Which is updated more often, PhrenD or Nuddle?

PhrenD ships an update every 3 months, and Nuddle weekly. Most recently, PhrenD was updated on September 30, 2026 and Nuddle on October 2, 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.*