Comparison

Pocket Squat vs サクヤと4分筋トレ

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

Head to head
About

Pocket Squat

This app helps build a consistent exercise habit by breaking down movement goals into short, manageable actions throughout your day. It uses smart reminders and real-time feedback to motivate users and track progress, turning everyday moments into opportunities for physical activity.

Highlights
  • Science-based goal distribution
  • Smart reminders
  • Real-time health asset visualization
  • Streak system
  • Short, repeatable movement actions
Features
Read full description

■ Built around the one exercise that matters most: the squat Most of your muscle mass sits in your lower body, and it is also the first to decline with age. That is why this app does not do push-ups or crunches. It does one thing: squats, done properly, kept up for good. Hold your phone (or wear your Apple Watch) and squat. The motion sensor counts every rep. No tapping required. ■ The 120-minute insight from modern health science Large-scale epidemiological studies, including research associated with Harvard T.H. Chan School of Public Health, have reported that people who do 90 to 120 minutes of strength training per week, such as squats, have a 13% lower risk of all-cause mortality compared with people who do none. Do nothing, and lower-body muscle naturally declines with age, quietly eroding your healthspan. This app is built to push back against that decline at an extremely low cost. ■ Raise the load effectively with Serious Training Mode Repeat the same number of reps forever and your muscles simply adapt. Turn on Serious Training Mode and the app judges the pace of every rep. Only reps done at a controlled pace of one every 1.5 to 5 seconds count as proper reps. Bouncing up fast, or resting mid-set, does not count. * A set with 60% proper reps is a proper workout * Get 3 proper workouts a day on 3 days a week, and your reps per set go up by 10% automatically Only people who earn it get more load, a little at a time, every time. It is the progressive overload a trainer would give you, in your pocket. ■ Sustainable and fun to keep up One set is 15 squats, about 30 seconds. No gym time required. * Sitting alarm: get nudged at the interval you choose during desk work * Scheduled reminders: on waking, at noon, in the evening, whenever fits your day * Extended healthspan: after every set, see in real time how much healthy time you have added. Your effort becomes a visible asset * Streaks and history: weekly, monthly and all-time charts with estimated calories * 10 color themes: the app's colors and its Home Screen icon change together * Apple Watch: count on the Watch alone, with records synced to iPhone * Apple Health: every set is saved as a workout Start investing in your lower body today. Fifteen seconds at a time can change your future. —— Pricing: Pocket Squat is completely free. Every feature is available at no cost. No in-app purchases, no subscription.

About

サクヤと4分筋トレ

This app offers quick, 4-minute workouts guided by a ninja character, Sakuya, with video demonstrations and encouraging voiceovers. It features customizable routines, progress tracking, and optional social features to connect with friends. The app is free, requires no registration, and is designed for easy, consistent fitness.

Highlights
  • 4-minute guided workouts
  • Video demonstrations
  • Encouraging voiceovers
  • Customizable routines
  • Progress tracking
  • Optional social features
  • Home screen widget
Features
Read full description

運動、続かなくていい。今日は1回だけでOK。 「サクヤと4分筋トレ」は、忍者の女の子・サクヤが、声とお手本の動画でつきっきりに応援してくれる筋トレアプリです。どのメニューも1回約4分。準備も着替えもいらず、スマホを置いたその場で始められます。しかも、無料・登録不要です。 ■ サクヤがとなりにいてくれる ・全種目にサクヤのお手本動画つき。まねするだけでフォームがわかります ・「あと10秒!」「今日も来てくれたね」——タイミングに合わせてサクヤが声をかけてくれます ・がんばった日も、休んだ日も、サクヤは責めません。戻ってきたら「おかえり」と迎えてくれます ■ 1回約4分だから、始められる ・ゆるめHIITから本気メニューまで、目的別の8メニュー。すべて約4分に揃えました ・種目を自由に組み合わせるマイメニューも作れます ・お手本は19種目。20秒動いて10秒休む、シンプルなインターバル形式です ■ 安心して使えます ・無料で使えます。広告やアプリ内課金も、いまはありません ・アカウント登録不要。ダウンロードしてすぐ始められます ・記録はまず端末内に保存されます(詳細はプライバシーポリシーをご覧ください) ■ 続けるほど、忍びとして強くなる ・完走すると修行値がたまり、忍びランクが上がっていきます ・連続日数や小判(アプリ内ポイント)で、がんばりが目に見えます。ホーム画面ウィジェットでも確認できます ・リマインダーをセットすれば、サクヤがそっと声をかけてくれます(通知はオフでも使えます) ■ なかまと、ゆるくつながる ・「忍び名」を決めて週間番付に参加できます(本名不要・参加は任意) ・なかまコードを交換すると、おたがいの今週のがんばりが見えます ・まだ今日やっていないなかまには、応援の手裏剣を送れます(定型文のみ・気軽に) ※本アプリはフィットネスの補助を目的としたものであり、医学的な助言を提供するものではありません。体調に不安のある方は、運動の開始前に医師にご相談ください。 ※本アプリは CryptoNinja のファンメイド(二次創作)アプリです。公式・公認アプリではありません。キャラクター「サクヤ」は CryptoNinja の二次創作キャラクターです。

Screenshots

Pocket Squat4 screens
サクヤと4分筋トレ4 screens

Verdict

The call

The clearest difference is monetization model: サクヤと4分筋トレ at free against Pocket Squat's paid. サクヤと4分筋トレ also leads on iOS requirement (15.0 vs 17.0). Pocket Squat's advantage is update cadence (every 3 days vs every 10 days). On price, review sentiment, 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

Pocket Squat ships an update every 3 days, サクヤと4分筋トレ every 10 days. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 5 level
Pocket Squat versus サクヤと4分筋トレ: the parameters behind the verdict, then further details
ParameterPocket Squatサクヤと4分筋トレ
PriceFreeFree
Positive reviews100.0% of reviews100.0% of reviews
Update frequencyEvery 3 days — betterEvery 10 days
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, Apple WatchiPhone, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size7 MB75 MB
Age rating4+4+
DeveloperFueld Inc.Nihon no Inaka ha Shihonshugi no Frontier da LLC.

Customer experience

Pocket Squat

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

サクヤと4分筋トレ

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Pocket Squat

No in-app purchases

None

サクヤと4分筋トレ

No in-app purchases

Questions

Is Pocket Squat free?
Pocket Squat is free to download, with no in-app purchases.
Is サクヤと4分筋トレ free?
サクヤと4分筋トレ is free to download, with no in-app purchases.
Do Pocket Squat or サクヤと4分筋トレ have ads?
Neither Pocket Squat nor サクヤと4分筋トレ shows ads.
Which is updated more often, Pocket Squat or サクヤと4分筋トレ?
Pocket Squat ships an update every 3 days, and サクヤと4分筋トレ every 10 days. Most recently, Pocket Squat was updated on October 8, 2026 and サクヤと4分筋トレ on October 13, 2026.

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