Siempre vs MuscleTimerPro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Siempre
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Simple Repeat Timer es un temporizador por intervalos que elimina lo innecesario para centrarse por completo en la simplicidad. Ideal para entrenar, estudiar, cocinar, hacer pausas en el trabajo y mucho más. • Ajuste de tiempo: configura libremente la duración de la cuenta regresiva • Alerta: zumbador de cuenta regresiva antes de finalizar • Tiempo de descanso: equilibrio entre concentración y recuperación • Repetición: establece el número de repeticiones con bucle automático • Sonido del zumbador: notificación simple e intuitiva Una sola pantalla. Pantalla digital clara y operación intuitiva. Disponible en japonés, inglés y español, para usar en cualquier lugar del mundo. Por solo 5 USD al año, se eliminan los diálogos dentro de la app para una experiencia aún más fluida. Simple Repeat Timer is an interval timer that strips away unnecessary features to focus entirely on simplicity. Perfect for training, studying, cooking, work breaks, and many other situations. • Time setting: freely set the countdown duration • Alert: countdown buzzer before finishing • Break time: balance focus and recovery • Repeat: set the number of repetitions for automatic looping • Buzzer sound: simple and intuitive notification Just one screen. A clear digital display with intuitive operation. Available in Japanese, English, and Spanish, so it can be used anywhere in the world. For only $5 per year, in-app dialogs are removed for an even smoother experience. Simple Repeat Timer は、余計な機能を省き「シンプルさ」を徹底追求したインターバルタイマーです。 トレーニング、勉強、料理、仕事の休憩など、あらゆるシーンで活躍します。 • 時間指定:カウントダウンを自由に設定 • アラート:終了前にカウントダウンブザーでお知らせ • 休憩時間:集中とリカバリーをサポート • 繰り返し:回数を指定して自動ループ • ブザー音:直感的に分かるシンプルなサウンド 画面は1つだけ。見やすいデジタル表示で、操作も直感的。 日本語・英語・スペイン語対応で、世界中どこでも使えます。 さらに、年額わずか3ドルでアプリ内ダイアログが外れ、より快適に利用できます。
MuscleTimerPro
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A simple and refined workout timer. The perfect timer app for interval training. Just set your sets, work time, and rest time. Save your favorite menus as presets for instant access. A minimal design that lets you focus on your training. 【Key Features】 - Customizable interval timer - Set management - Work time & rest time settings - Preset saving - Workout history tracking - Monthly activity calendar - Rep-based training support - Sound & vibration settings - English & Japanese support 【Perfect For】 - Home workout enthusiasts - Interval training lovers - Those who prefer simple apps - Gym-goers doing weight training - Anyone who wants to track their workouts 【Commitment to Simplicity】 No complex features or unnecessary clutter. Only what you truly need, simply implemented. Just tap to start the timer. Intuitive controls let you focus on your training. 【Workout History】 Your past workouts are saved automatically. View them at a glance on the monthly calendar. Stay motivated by tracking your consistency. 【Preset Feature】 Save your favorite menus and start with one tap. No more setup every time. Create presets for each exercise and train more smoothly. 【Flexible Support】 Supports rep-based training without timers. Track all your exercises—bench press, squats, and more. Simply refined experience. This is our answer. 【Credits】 Sound effects: OtoLogic (https://otologic.jp)
Screenshots
Verdict
The clearest difference is in-app purchases: MuscleTimerPro at none against Siempre's 1. Siempre's advantage is update cadence (every 3 days vs every 2 weeks). On price, ads, device support 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
Both are free to download. Siempre sells 1 one-off in-app purchase. MuscleTimerPro asks for nothing beyond the download.
Siempre ships an update every 3 days, MuscleTimerPro every 2 weeks. The most recent releases landed on September 11, 2026 and February 23, 2026 respectively.
| Parameter | Siempre | MuscleTimerPro |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 16 | 15.1 — better |
| Further details — not scored | ||
| Size | 4 MB | 56 MB |
| Age rating | 17+ | 4+ |
| Developer | Noritsugu Tagami | JIN TANDA |
In-app purchases
Siempre
- Japon/Espanol$2.99
MuscleTimerPro
No in-app purchases





