STF Kronos vs Rx Crossfit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
STF Kronos
Sync your smartwatch to track sports performance, including hiking, cycling, and running. Monitor heart rate, steps, and sedentary periods. Access additional features based on your specific smartwatch model.
- Smartwatch synchronization
- Sports performance monitoring
- Heart rate tracking
- Step counting
- Sedentary period alerts
- iOS Health App integration
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Descarga, sincroniza y utiliza la aplicación STF Kronos para sacar el máximo provecho a las funciones de tu smartwatch. Ideal para monitorear tu desempeño en diferentes deportes como excursionismo, ciclismo, correr y caminata en interiores y exteriores. Mide y analiza las métricas de tu frecuencia cardiaca, pasos y periodos de sedentarismo. Consulta otras funciones de acuerdo a tu modelo de smartwatch. Integrates with iOS Health App.
Rx Crossfit
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¡Lleva tu entrenamiento al siguiente nivel con Rx Crossfit Academy! Registra tus WODs, haz seguimiento de tus marcas personales (PRs) y compite en nuestra comunidad global. Diseñada para atletas de todos los niveles que buscan mejorar su rendimiento y mantener un historial detallado de su progreso físico.
Screenshots
Verdict
The clearest difference is iOS requirement: STF Kronos at 13.0 against Rx Crossfit's 15.6. On price, update cadence, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 29, 2026 and October 5, 2026 respectively.
| Parameter | STF Kronos | Rx Crossfit |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (9 ratings) — better | — |
| Positive reviews | 64.7% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 230 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | STUFFACTORY | Luis Conrado Garcia Alegria |
In-app purchases
STF Kronos
No in-app purchases
Rx Crossfit
No in-app purchases
