Comparison

SuperSlowTrainingTimer 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

SuperSlowTrainingTimer

This app guides you through slow training exercises with voice and screen prompts for lifting, holding, and lowering. Create custom training menus with adjustable repetitions, sets, and intervals. Supports background operation and dark mode for convenient use during workouts.

Highlights
  • Voice and screen counting for movements
  • Customizable training menus
  • Adjustable reps, sets, and intervals
  • Background operation support
  • Dark mode display
  • Silent mode operation
Features
Read full description

SuperSlowTrainingTimer is a timer application with a read-out function dedicated to slow training. It counts the movements that are important in slow training, such as lifting slowly, holding, and lowering slowly which are important in slow training, are counted by voice and screen display. You can create as many training menus as you want. The number of seconds, number of repetitions, interval time, and number of sets for each movement can be set freely. Dark mode display, background operation, and operation without releasing silent mode are also supported. It also supports dark mode display, background operation, and operation without releasing silent mode. It can be used for weight training, muscle training at home, toning up a lax body, maintaining muscle strength, and rehabilitation. It can be used for weight training, muscle training at home, toning up a lax body, maintaining muscle strength, rehabilitation, and as a reliable companion for slow training. <What is "slow training"?> Slow training is a training method that allows you to increase the load on your muscles by performing muscle training in slow motion. Slow training is a training method that increases the load on the muscles by training them in slow motion. Even with a small number of repetitions, the effect is tremendous. By moving slowly, the load on the joints is also reduced, thus reducing the risk of injury. <The following items can be set> ・The number of seconds to count down to the start  ・Name of the training menu ・Number of seconds to move (raise or lower) ・Number of seconds to hold ・Number of seconds to return (lower/lower/up) ・Number of repetitions ・Interval between reps ・Number of sets ・Interval between sets ・Counting voice <Features of the app> ・Count each movement (move, hold, return) with voice and display. ・You can create as many training menus as you like. ・You can choose the type of voice that counts. ・Push notifications for today's workout. ・Tap the notification and start working out immediately. ・Cool dark mode display. ・Can be used without deactivating silent mode

About

サクヤと4分筋トレ

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

SuperSlowTrainingTimer4 screens
サクヤと4分筋トレ4 screens

Verdict

The call

The clearest difference is in-app purchases: サクヤと4分筋トレ at none against SuperSlowTrainingTimer's 1. サクヤと4分筋トレ also leads on ads (none vs shown) and update cadence (every 3 days vs every 3 weeks). On price and device support 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. SuperSlowTrainingTimer sells 1 one-off in-app purchase. サクヤと4分筋トレ asks for nothing beyond the download.

UpkeepUpdate frequency

SuperSlowTrainingTimer ships an update every 3 weeks, サクヤと4分筋トレ every 3 days. The most recent releases landed on June 2, 2026 and September 10, 2026 respectively.

Scorecard4 real differences · 6 level
SuperSlowTrainingTimer versus サクヤと4分筋トレ: the parameters behind the verdict, then further details
ParameterSuperSlowTrainingTimerサクヤと4分筋トレ
PriceFreeFree
Rating3.7 (3 ratings) — better
Positive reviews100.0% of reviews
Number of ratings3 — better
Update frequencyEvery 3 weeksEvery 3 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases
DevicesiPhoneiPhone, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size12 MB42 MB
Age rating4+4+
DeveloperKENICHI YAMAMOTONihon no Inaka ha Shihonshugi no Frontier da LLC.

In-app purchases

1 purchases

SuperSlowTrainingTimer

One-time1
  • Remove ADs$3.99
None

サクヤと4分筋トレ

No in-app purchases

Questions

Is SuperSlowTrainingTimer free?
SuperSlowTrainingTimer is free to download, with in-app purchases available.
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 SuperSlowTrainingTimer or サクヤと4分筋トレ have ads?
SuperSlowTrainingTimer shows ads; サクヤと4分筋トレ does not.
Which is updated more often, SuperSlowTrainingTimer or サクヤと4分筋トレ?
SuperSlowTrainingTimer ships an update every 3 weeks, and サクヤと4分筋トレ every 3 days. Most recently, SuperSlowTrainingTimer was updated on June 2, 2026 and サクヤと4分筋トレ on September 10, 2026.

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