# grug vs KUU

grug and KUU both sit at 4.8 stars, but that hides the real split: 96% of grug's written reviews are positive against 52% of KUU's. grug also leads on in-app purchases (none vs 3) and ads (none vs shown). KUU's advantage is device support (4 vs 1). On price, rating and update cadence there is nothing between them.

Both are free to download. KUU sells 3 in-app purchases, starting at $5.99 per month. grug asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for grug against 4.9 for KUU. That said, the two scores are not equally well evidenced: grug has 3.4K ratings behind it against 9, so its average is the more settled of the two. Written reviews are what separate them: 96% of grug's written reviews are positive against 52% of KUU's.

grug ships an update weekly, KUU every 3 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | grug | KUU |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (3.4K ratings)](https://appshunter.io/ios/app/grug/id6751649802/reviews) | **[4.9 (9 ratings)](https://appshunter.io/ios/app/kuu-overthinking-brain-dump/id6771264775/reviews)** |
| Number of ratings | **3.4K** | 9 |
| Positive reviews | **96.3% of reviews** | 51.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 22 MB | 36 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Ocho](https://appshunter.io/developer/1802971058) | [Shunya Yamashita](https://appshunter.io/developer/1841624282) |

## What reviewers say

### grug

[App page](https://appshunter.io/ios/app/grug/id6751649802)

Receive a daily dose of simple, profound wisdom to help you navigate life's challenges. This app offers straightforward truths and accompanying artwork to inspire personal growth and contentment. It focuses on mindfulness and taking small steps each day.

**Highlights:** Daily wisdom sharing, Accompanying artwork, Home screen widget, Customizable themes, Light and dark modes, No login or tracking

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

**In-app purchases:** none


### KUU

[App page](https://appshunter.io/ios/app/kuu-overthinking-brain-dump/id6771264775)

This app helps declutter your mind by allowing you to speak your thoughts. It transcribes your voice and categorizes your ideas into 'Now,' 'Later,' 'Park,' and 'Let go' to reduce mental load.

**Highlights:** Voice-to-text transcription, Automatic thought categorization, Four distinct holding spaces for ideas, Private iCloud syncing, Menu bar integration for Mac, Focus on mental space, not productivity

**Features:** Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KUU+ Monthly | $5.99 | per month |
| KUU+ Yearly | $39.99 | per year |
| KUU+ Lifetime | $89.99 | one-time |


## Frequently asked questions

### Is grug free?

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

### Is KUU free?

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

### Which has better reviews, grug or KUU?

KUU is rated higher. grug averages 4.8 out of 5 from 3.4K ratings, while KUU averages 4.9 from 9 ratings.

### Do grug or KUU have ads?

KUU shows ads; grug does not.

### Which is updated more often, grug or KUU?

grug ships an update weekly, and KUU every 3 days. Most recently, grug was updated on November 5, 2026 and KUU on November 5, 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.*