Wisp vs Kotonemu
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Wisp
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Can't switch off a racing mind at night? Wisp is a sleep-onset tool for overthinkers โ not another meditation app. Lie down, press play, and close your eyes. Wisp reads you a gentle, paced stream of unrelated single words โ a river, a kettle, a feather โ in a calm, human-quality voice. Picturing each one gives your busy mind something soft to follow instead of the worry loop, so sleep can come on its own. Nothing to learn, nothing to clear from your mind. HOW IT WORKS โ THE COGNITIVE SHUFFLE Wisp is built on the cognitive shuffle, a sleep-onset technique created by a cognitive scientist. Random, calming images are close to how a mind naturally behaves as it falls asleep โ so following them helps you let go. WHY WISP IS DIFFERENT - Real, human-quality voices โ never robotic text-to-speech. - A large library of words that doesn't repeat night after night. - Layer in calming ambient sound and mix it to taste. - A quiet, true-black night screen made for the dark. - No accounts to fill, no streaks to chase, no pressure. FOR THE NIGHTS YOUR MIND WON'T QUIET Whether it's overthinking, a racing mind, or just trouble winding down, Wisp gives your attention a gentle place to rest. WAKE TO A FRESH PAGE Mornings show a gentle rhythm of your wind-down habit โ never a sleep score, never a judgment. SIMPLE AND HONEST A free voice and ambient sound, every night. A subscription unlocks the full voice and sound library โ monthly or yearly, cancel anytime. We don't make medical claims or promise perfect sleep; we give your mind a kinder way to wind down. Sleep well. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula
Kotonemu
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For nights when your thoughts will not stop. Kotonemu reads out unrelated words, one at a time, in a gentle voice. Apple. Umbrella. Mailbox. While you picture words that have nothing to do with each other, your brain cannot keep a chain of reasoning going. As that effort loosens, sleep arrives on its own. It is a direct implementation of the method known as cognitive shuffle. WHAT MAKES IT DIFFERENT - A different order every night. 600 words, chosen so that related ones never follow each other. No two words from the same category, and no two starting with the same sound. You will not learn the sequence. - It fades as it goes. Volume, the gap between words, and the reading speed all ease off over the session, so it keeps reaching you if you are still awake without waking you once you are not. BUILT NOT TO DISTURB - No ads. Nothing interrupts you. - No network. It works in airplane mode. - The screen dims by itself, and you can hide the words entirely. - Optional rain or ocean underneath. THE VOICE All 600 words were recorded by a voice actor. Nothing is synthesised. PRICING The app is free. All 600 words and the 10, 15 and 30 minute sessions stay free forever. For seven days you can also use every session length. After that, a single payment unlocks the 60 minute, 90 minute and unlimited sessions if you want them. There is no subscription. This app is not a medical device and is not intended to diagnose or treat insomnia. If sleeplessness persists, please consult a doctor. LINKS Support https://kotonemu.glspace.co.jp/support.html Privacy Policy https://kotonemu.glspace.co.jp/privacy.html Terms of Use https://kotonemu.glspace.co.jp/terms.html
Screenshots
Verdict
The clearest difference is iOS requirement: Wisp at 15.0 against Kotonemu's 17.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Wisp sells 2 in-app purchases, starting at $4.99 per month and Kotonemu sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
| Parameter | Wisp | Kotonemu |
|---|---|---|
| Price | Free | Free |
| Update frequency | โ | Every 5 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod โ better | iPhone |
| Requires iOS | 15.0 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 53 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Deep IT Consulting | GYOU GI |
In-app purchases
Wisp
- Wisp Plus Monthly$4.991 Month
- Wisp Plus Annual7 Days trial$44.991 Year
Kotonemu
- At Your Ear$12.99
- All Night$12.99
Questions
Is Wisp free?
Is Kotonemu free?
Do Wisp or Kotonemu have ads?
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