# KUU vs Sleeps

KUU and Sleeps both sit at 4.9 stars, but that hides the real split: 100% of Sleeps's written reviews are positive against 52% of KUU's. Sleeps also leads on in-app purchases (none vs 3) and ads (none vs shown). KUU's advantage is update cadence (every 3 days vs monthly) and ratings volume (9 vs 1). On price, rating and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for KUU against 5.0 for Sleeps. That said, the two scores are not equally well evidenced: KUU has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 52% of KUU's written reviews are positive against 100% of Sleeps's.

KUU ships an update every 3 days, Sleeps monthly. The most recent releases landed on November 15, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | KUU | Sleeps |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (9 ratings)](https://appshunter.io/ios/app/kuu-overthinking-brain-dump/id6771264775/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sleeps-how-many/id6792544030/reviews)** |
| Number of ratings | **9** | 1 |
| Positive reviews | 51.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 36 MB | 5 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Shunya Yamashita](https://appshunter.io/developer/1841624282) | [Ilias Rafailidis](https://appshunter.io/developer/1874647979) |

## What reviewers say

### KUU

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

This app provides a voice-first method for offloading scattered thoughts, worries, and ideas. It transcribes your spoken words and categorizes them into 'Now', 'Later', 'Park', and 'Let go' sections to help clear your mind.

**Highlights:** Voice-to-text transcription, Thought categorization (Now, Later, Park, Let go), ADHD-friendly design, Private iCloud sync, Menu bar integration for Mac, No raw audio storage

**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 |


### Sleeps

[App page](https://appshunter.io/ios/app/sleeps-how-many/id6792544030)

This app helps children visualize the time until special events by counting down the number of sleeps remaining. Users can create personalized countdowns with titles, dates, pictures, and colors, and view the remaining sleeps on their home screen via widgets. It also offers optional reminders and syncs across devices.

**Highlights:** Sleeps countdowns, Customizable events, Home screen widgets, Siri integration, Optional reminders, iCloud sync

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is KUU free?

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

### Is Sleeps free?

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

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

Sleeps is rated higher. KUU averages 4.9 out of 5 from 9 ratings, while Sleeps averages 5.0 from 1 ratings.

### Do KUU or Sleeps have ads?

KUU shows ads; Sleeps does not.

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

KUU ships an update every 3 days, and Sleeps monthly. Most recently, KUU was updated on November 15, 2026 and Sleeps on November 13, 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.*