# iCountdownClock vs KUU

The clearest difference is ads: iCountdownClock at none against KUU's shown. iCountdownClock also leads on iOS requirement (18.2 vs 26.0). KUU's advantage is update cadence (every 3 days vs every 2 months) and device support (4 vs 2). On price and in-app purchases there is nothing between them.

Both are free to download. iCountdownClock sells 1 one-off in-app purchase and KUU sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

iCountdownClock ships an update every 2 months, KUU every 3 days. The most recent releases landed on November 5, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | iCountdownClock | KUU |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (9 ratings)](https://appshunter.io/ios/app/kuu-overthinking-brain-dump/id6771264775/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 51.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 36 MB |
| Requires iOS | **18.2** | 26.0 |
| Devices | iPhone, Apple Watch | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [Laure Chipman](https://appshunter.io/developer/1782715943) | [Shunya Yamashita](https://appshunter.io/developer/1841624282) |

## What reviewers say

### iCountdownClock

[App page](https://appshunter.io/ios/app/icountdownclock/id6759740936)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Events | $2.99 | one-time |


### 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 |


## Frequently asked questions

### Is iCountdownClock free?

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

### Is KUU free?

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

### Do iCountdownClock or KUU have ads?

KUU shows ads; iCountdownClock does not.

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

iCountdownClock ships an update every 2 months, and KUU every 3 days. Most recently, iCountdownClock was updated on November 5, 2026 and KUU 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.*