Comparison

Doze Prevention vs K

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

Head to head
About

Doze Prevention

This app helps prevent unwanted sleep during important moments like meetings or travel. It uses customizable vibration alerts at set intervals or when movement is detected to keep you awake.

Highlights
  • Vibration alerts for sleep prevention
  • Customizable alert intervals
  • Shake to stop alert function
  • Button stop function
  • Auto-repeat alert option
  • Zen meditation awareness
Features
Read full description

■ Prevention from a nap. ■ Sleep under meeting or in session. ■ A train oversleeps. ■ Meditation, and awareness of Zen meditation. There is a scene where he must not sleep by plentifully. However, it cannot bear by lack of sleep etc. Then, please try this application. It warns you with vibes for every set-up second. When you are sleeping, it is started with vibes. ■ Setup of iPhone Please use vibes ration by ON in a sound. Settings - vibrations - ON ■ Auto-repeat -- ON A setup will shake vibes once for every second. -- OFF Vibes trembles until it will carry out stop operation, if it sets up. * When auto-repeat is set up, a shake stop and a button stop become invalid. ■ Shake stop -- ON Warning vibes stops by shake. -- OFF A shake stop function stops. ■ Button stop -- ON Warning vibes stops in a stop button. -- OFF A stop button function stops. ---------------------------- I's Free, so try. ----------------------------

About

K

Features
Read full description

骨盤底筋トレーニング(ケーゲル体操)をサポートするこのアプリは、「K-GEL CHECKER」を活用して効果的な筋力アップをサポートします。 正しい姿勢や力の入れ方を学び、日々の取り組みを記録。測定結果を通じて成果を確認できるので、モチベーション維持にも役立ちます。 アプリ内のお役立ち情報や測定方法の指示も参考に、継続的なトレーニングで健康的な骨盤底筋を目指しましょう。

Screenshots

Doze Prevention2 screens
K4 screens

Verdict

The call

The clearest difference is update cadence: Doze Prevention at every 2 months against K's every 6 months. Doze Prevention also leads on device support (3 vs 1) and iOS requirement (10.0 vs 16.0). On price, 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Doze Prevention ships an update every 2 months, K every 6 months. The most recent releases landed on October 12, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 7 level
Doze Prevention versus K: the parameters behind the verdict, then further details
ParameterDoze PreventionK
PriceFreeFree
Rating3.0 (3 ratings) — better—
Positive reviews33.3% of reviews—
Number of ratings3 — better—
Update frequencyEvery 2 months — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS10.0 — better16.0
Further details — not scored
Size21 MB1 MB
Age rating4+17+
DeveloperTAKAHIRO AYATENGA Healthcare Inc.

In-app purchases

None

Doze Prevention

No in-app purchases

None

K

No in-app purchases

Questions

Is Doze Prevention free?
Doze Prevention is free to download, with no in-app purchases.
Is K free?
K is free to download, with no in-app purchases.
Do Doze Prevention or K have ads?
Neither Doze Prevention nor K shows ads.
Which is updated more often, Doze Prevention or K?
Doze Prevention ships an update every 2 months, and K every 6 months. Most recently, Doze Prevention was updated on October 12, 2026 and K on October 13, 2026.

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