Comparison

認知シャッフル睡眠法 vs EyeCare Tracker

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

Head to head
About

認知シャッフル睡眠法

Features
Read full description

眠れない夜、頭の中が考えごとでいっぱいになる。SleepWordsは穏やかな声でランダムな言葉を読み上げ、脳の論理的思考をやさしく中断する睡眠アプリです。 【認知シャッフル睡眠法とは】 カナダの認知科学者が提唱した入眠テクニックです。ランダムな単語を次々と思い浮かべることで、脳が「考えること」をやめ、睡眠モードに切り替わりやすくなります。SleepWordsはこのプロセスを自動化し、あなたはただ目を閉じて聴くだけ。 【主な機能】 ・穏やかな音声で500語のランダム単語を読み上げ ・男性・女性の声から選べる言語パック ・波の音、焚き火、雨音などの環境BGM ・再生時間の設定(30分/60分/90分/無制限) ・再生終了前のフェードアウト機能 ・美しい背景画像で心を落ち着ける 【こんな方におすすめ】 ・布団に入っても考えごとが止まらない ・寝つきが悪く、入眠に時間がかかる ・リラックスして眠りにつきたい ・睡眠の質を改善したい ・薬に頼らず自然に眠りたい ・瞑想やマインドフルネスに興味がある 【使い方はシンプル】 好きな言語パックとBGMを選ぶ 再生ボタンを押す 目を閉じて、言葉を頭の中でイメージする いつの間にか、眠りの世界へ 目を閉じて、声に耳を傾ける。それだけで、今夜の眠りが変わります。 利用規約: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ プライバシーポリシー: https://sleepwords.app/privacy-policy/

About

EyeCare Tracker

Read full description

Know exactly when to replace your contact lenses, lens case and eye drops — at a glance. No more counting days or wondering when you opened that bottle. Tap once when you swap, and your next date and alerts update on their own. FEATURES - Countdown rings for contact lenses, lens case and eye drops - Items sorted by what's due next, so today's to-do is obvious - Alerts the day before, on the due date, and after (set the time per item) - Log a replacement with one tap — and undo it if you tapped by mistake - Fix past dates anytime - Set any interval from 1 to 365 days (daily, biweekly and monthly lenses in one tap) - Log how your eyes feel today — Great, Dry, Tired, Gritty or Red — with one tap - Look back at your eye comfort on a calendar - Save your lens prescription (PWR, BC, DIA, store) and copy it in one go - Add your own items: color lenses, lens solution, eye checkups and more - Dark Mode, iPhone and iPad GREAT FOR YOU IF - You lose track of when to swap your 2-week or monthly contacts - You can't remember the last time you changed your lens case - You forget when you opened your eye drops - You dig out the box every time you reorder lenses online - Your eyes seem drier near replacement day and you want to check PRIVACY - All your records stay on your device - No account or sign-up - Your replacement and eye-comfort logs are never sent anywhere - To show other apps from the same developer, the app may load public App Store information - Reminders and logging work without an internet connection PLEASE NOTE This app is not a medical device and does not provide medical advice or diagnosis. Always follow your eye care professional's instructions and the product guidelines for lens use and replacement.

Screenshots

認知シャッフル睡眠法4 screens
EyeCare Tracker4 screens

Verdict

The call

The clearest difference is iOS requirement: 認知シャッフル睡眠法 at 15.1 against EyeCare Tracker's 17.0. On price, update cadence, ads 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. 認知シャッフル睡眠法 sells 2 in-app purchases, starting at $1.99 per month and EyeCare Tracker sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

認知シャッフル睡眠法 ships an update every 6 weeks, EyeCare Tracker every 2 months. The most recent releases landed on October 11, 2026 and October 19, 2026 respectively.

Scorecard1 real difference · 5 level
認知シャッフル睡眠法 versus EyeCare Tracker: the parameters behind the verdict, then further details
Parameter認知シャッフル睡眠法EyeCare Tracker
PriceFreeFree
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size136 MB3 MB
Age rating4+4+
Developermika kubotorankirite

In-app purchases

2 purchases

認知シャッフル睡眠法

Subscriptions2
  • SleepWords Premium (Monthly)$1.991 Month
  • SleepWords Premium (Yearly)$19.991 Year
1 purchases

EyeCare Tracker

One-time1
  • Remove Ads$3.99

Questions

Is 認知シャッフル睡眠法 free?
認知シャッフル睡眠法 is free to download, with in-app purchases available.
Is EyeCare Tracker free?
EyeCare Tracker is free to download, with in-app purchases available.
Do 認知シャッフル睡眠法 or EyeCare Tracker have ads?
Neither 認知シャッフル睡眠法 nor EyeCare Tracker shows ads.
Which is updated more often, 認知シャッフル睡眠法 or EyeCare Tracker?
認知シャッフル睡眠法 ships an update every 6 weeks, and EyeCare Tracker every 2 months. Most recently, 認知シャッフル睡眠法 was updated on October 11, 2026 and EyeCare Tracker on October 19, 2026.

Other comparisons