Comparison

K vs yoctoLife

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

Head to head

About

K

Features

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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。

About

yoctoLife

Features

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yoctoLIfeはyoctoが提供するIoTヨガマットを接続してヨガレッスンを受けることが出来るモバイルアプリです。スタジオから発行された生徒様アカウントでログインし、参加するレッスンを選択し、マットをBlueTooth接続してレッスンに参加出来ます。 yoctoLifeアプリで生活をより健康的なものにしましょう。

Screenshots

K4 screens

yoctoLife4 screens

Verdict

The call

The clearest difference is update cadence: yoctoLife at every 3 months against K's every 6 months. yoctoLife also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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

K ships an update every 6 months, yoctoLife every 3 months. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 4 level

K versus yoctoLife: the parameters behind the verdict, then further details
Parameter	K	yoctoLife
Price	Free	Free
Update frequency	Every 6 months	Every 3 months — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone	iPhone, iPad, iPod — better
Requires iOS	16.0	15.6 — better
Further details — not scored
Size	1 MB	90 MB
Age rating	17+	4+
Developer	TENGA Healthcare Inc.	YOCTO CO.,LTD.