Comparison

iCountdownClock vs KUU

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iCountdownClock

Features
Read full description

iCountdownClock keeps you focused on what's ahead — the vacation, the birthday, the big day you've been working toward. Set it up on your iPhone and watch your countdowns live right on your wrist or iPhone home screen. Scrollable event tiles on Apple Watch Every countdown you care about, organized as color-coded tiles you can scroll through at a glance. Blue for your featured event, purple for upcoming, green when it arrives. Always on your watch face Pin your most important event as a watch face complication — the countdown is there the moment you raise your wrist, without opening a thing. Arrival celebration When your moment finally comes, iCountdownClock celebrates with you on the watch — confetti, a custom notification, and a little well-deserved fanfare. Stress relief, done differently Most wellness apps detect low heart rate variability and tell you that you're stressed — which isn't exactly helpful. iCountdownClock does something different: when your Apple Watch senses elevated stress, it quietly reminds you of something you're looking forward to. A nudge toward optimism, not anxiety. Private by design All your data stays on your devices. Nothing is sent to any server. Pricing Free for one countdown event — everything included. Unlock unlimited events for a one-time $2.99 in-app purchase. No subscription, no recurring charges.

About

KUU

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
Read full description

When your head is full, it can be hard to know what belongs in front of you and what can wait. KUU is a quiet voice-first app for brain dumps, overthinking, scattered ideas, and the small worries you do not want to keep carrying. You can speak what is on your mind. It does not need to be organized. KUU turns what you said into text and gently separates it four ways: Now / Later / Park / Let go. The point is not to do more. It is to make a little room in your head. ■ When to use it - Before bed, when your mind starts running. - When the same thought keeps looping. - When task managers have started to feel heavy. - When you want to be heard, but do not want to send it to anyone. - When talking out loud helps you understand what you mean. - When an idea appears before it has a shape. - When you do not want to forget something, but it is not ready to act on. - When voice feels easier than typing. - When your hands are busy: driving, cooking, getting ready, or moving through the day. ■ The 4 ways Now — Something that may feel lighter if you look at it soon. Later — Something to return to at another time. Park — An idea, feeling, or question that does not need an answer yet. Let go — A worry or thought you may not need to keep holding. These are not priorities or scores. They are quiet ways to hold what you said. ■ How KUU is different - Unlike a notes app, KUU starts with speaking, not writing. - Unlike a task manager, KUU does not turn every thought into something to do. - Unlike an AI chat, KUU does not give long advice or add more things to think about. KUU receives what you said and separates it into smaller, easier pieces. ■ What you can do - Speak naturally, even when your thoughts are all mixed up. - See your words as text. - See only what needs your attention now. - Keep later thoughts, parked ideas, and things to let go in their own places. - Revisit what you have said when you want to. ■ Voice and data - Raw audio is not kept. - What you said is saved as text so you can look back later. - Sorting uses AI. Only your words as text are sent, and nothing is kept. - Your saved text syncs only to your private iCloud. - Other people, and the app developer, cannot read it. ■ On your Mac KUU waits quietly in the menu bar. You can speak without opening a window, and it carries all the way through to Now / Later / Park / Let go. What you said before is always a glance away. KUU is not here to add more thoughts. It is here for the space between: “I do not need to solve this right away” and “I do not want to keep holding it in my head.” — Speaking makes room in your mind. Terms of Use: https://kuu-zen.com/en/terms/ Privacy Policy: https://kuu-zen.com/en/privacy/

Screenshots

iCountdownClock2 screens
KUU4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
iCountdownClock versus KUU: the parameters behind the verdict, then further details
ParameteriCountdownClockKUU
PriceFreeFree
Rating—4.9 (9 ratings) — better
Positive reviews—51.5% of reviews
Number of ratings—9 — better
Update frequencyEvery 2 monthsEvery 3 days — better
AdsNo — betterYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, Apple WatchiPhone, iPad, Mac, Apple Watch — better
Requires iOS18.2 — better26.0
Further details — not scored
Size2 MB36 MB
Age rating12+4+
DeveloperLaure ChipmanShunya Yamashita

In-app purchases

1 purchases

iCountdownClock

One-time1
  • Unlimited Events$2.99
3 purchases

KUU

Subscriptions2
  • KUU+ Monthly$5.991 Month
  • KUU+ Yearly3 Days trial$39.991 Year
One-time1
  • KUU+ Lifetime$89.99

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.

Other comparisons