S4S App vs Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
S4S App
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POR FAVOR, NOTA: Necesitas una cuenta S4S para acceder a esta aplicación. Preparación física especializada para opositores. Entrenamiento técnico, planificación personalizada y acompañamiento real. Mejorando tus pruebas con ciencia, método y un equipo que va contigo. Puede sincronizar esta aplicación con Apple Health App. Si habilita esta conexión, cualquier entrenamiento en la aplicación de Health se añadirá automáticamente a su calendario de actividades.
Timer
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An interval timer for routines you build yourself: any number of steps, in any order, repeated as often as you like, with your own voice and your own pictures. Free. No advertising, no purchases, no subscription. A COUNTDOWN YOU CAN READ ACROSS THE ROOM One number, as large as the screen allows. The exercise plays in a band above it while you copy the movement, and a bar along the bottom shows every round, step and rest at once — so you always know how much is left. YOUR OWN VOICE Record a note for any step and hear it the moment that step arrives. Where you have not recorded one, the phone reads out the step's name as it begins, so you are never guessing what to do next. IT WORKS WITH THE SCREEN OFF The cues sound with the phone locked and in your pocket, and they sound through the silent switch. A timer that goes quiet when you need it is not a timer. TWO ROUTINES TO START WITH A back stretch and an active workout, filmed and ready to run. Change them, or build your own from nothing: your steps, your durations, your rests, and a video or a photograph behind each one. SIX COLOUR THEMES The original gold, plus Aquatic, Nature, Candy, Energy and Lagoon. Chosen in the settings, applied everywhere the app draws — the running screen included. Every one is measured for contrast, so the countdown reads the same in pink as it does in gold. NOTHING LEAVES THE PHONE No account, no sign-in, no analytics. The app holds no network permission at all, so it could not send anything anywhere even if it were asked to. Your recordings and your pictures stay in the app's own storage and are deleted with it. MADE TO BE USED MID-SET Large type, high contrast, full VoiceOver support with each phase announced as it changes, and haptics for when the ear misses a cue. Twenty-seven languages.
Screenshots
Verdict
The clearest difference is iOS requirement: S4S App at 13.0 against Timer's 16.4. On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | S4S App | Timer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 195 MB | 40 MB |
| Age rating | 12+ | 4+ |
| Developer | S4S Preparación Física SL | Bertrand de Coatpont |
In-app purchases
S4S App
No in-app purchases
Timer
No in-app purchases









