# RX Engine: WOD & Strength Log > Track strength, WODs & PRs. AMRAP, EMOM, TABATA, FOR TIME — all in one app. Canonical page: [https://chrome-stats.com/d/nl.rxdev.rxengine](https://chrome-stats.com/d/nl.rxdev.rxengine) ## Overview - **ID:** `nl.rxdev.rxengine` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** CrossFit Tracker Dev - **Category:** HEALTH\_AND\_FITNESS - **Downloads:** 42 - **Version:** 2.12.2 - **Last updated:** 2026-09-04 - **First published:** 2026-05-20 - **Publisher country:** NL - **Size:** 21 MB - **Data as of:** 2026-09-25 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=nl.rxdev.rxengine) - **Website:** [https://sites.google.com/view/rxengineprivacy](https://sites.google.com/view/rxengineprivacy) - **Privacy policy:** [https://sites.google.com/view/rxengineprivacy](https://sites.google.com/view/rxengineprivacy) ## Description RX Engine is the training app for functional fitness, powerlifting and CrossFit athletes who take their data seriously. No account, no cloud, no ads — your workouts stay on your phone. Log strength, WODs and PRs and track your long-term progress.

─── STRENGTH ───
Log every strength session with the structure that fits your style:
• SETS — free input per set
• INTERVAL — fixed reps with adjustable rest time
• LADDER — automatically progressing percentage of your 1RM
• BUILD-UP — step by step toward your maximum
The app calculates your estimated 1RM (Epley formula) after every set.

─── WOD ───
Four workout-type-specific scoring methods:
• AMRAP — score by rounds and bonus reps
• FOR TIME — score by finish time, optional time cap
• EMOM — track each minute, including partial reps
• TABATA — 20s work / 10s rest, score = lowest round
Log classic benchmark workouts like Fran, Cindy and Murph separately in your logbook.

─── PRs ───
Store all your personal records per exercise.
• Gym log / workout journal
• Personal record tracking
• Built-in 1RM calculator (Epley formula) per exercise

─── LOG ───
Browse your complete training history including:
• Progress charts per exercise
• Volume per session
• Intensity zones relative to your 1RM
• Benchmark score timeline

─── MORE ───
✓ Fully offline — no account needed, no data sent to servers
✓ Built-in rest timer and stopwatch
✓ Dark theme, designed for the box environment
✓ Available in 11 languages
✓ Free to use ## Rankings - #2,349,906 — Overall ## Permissions and access ### Permissions - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.FOREGROUND_SERVICE` - `android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK` - `android.permission.INTERNET` - `android.permission.POST_NOTIFICATIONS` - `android.permission.VIBRATE` - `com.android.vending.BILLING` - `com.android.vending.CHECK_LICENSE` - `nl.rxdev.rxengine.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` ## Similar extensions and apps - [WOD Log - CrossFit & HIIT](https://chrome-stats.com/d/com.vandersw.wodLog) — 89,919 users, 3.61 / 5 - [WOD Tracker: CrossFit & Hyrox](https://chrome-stats.com/d/com.wodtracker) — 38 users - [WOD PR - CrossFit WOD Tracker](https://chrome-stats.com/d/com.mhdev.wodpr) — 96 users - [WOD Tracker: Timer & PR Log](https://chrome-stats.com/d/me.manulorenzo.crossfittracker.android) — 139 users - [1RM LOG - CrossFit & Gym PR](https://chrome-stats.com/d/com.malph.onerm_log) — 244 users - [Workout Tracker - WOD Logging](https://chrome-stats.com/d/com.rogansoftware.workouttracker) — 7,278 users, 4.42 / 5 - [GymRx: Workout Tracker & Log](https://chrome-stats.com/d/com.gymrx.app) — 207 users - [FitterAI – WOD & 1RM Tracker](https://chrome-stats.com/d/com.fitterai.app) — 135 users - [NOREP — CrossFit WOD Tracker](https://chrome-stats.com/d/net.eane.norep) — 45 users - [FreeWOD - workout log & timer](https://chrome-stats.com/d/com.einfachsystem.freewod) — 94 users - [Dr Gym RX](https://chrome-stats.com/d/dr.gym.rx) - [RepMark: Gym Workout Tracker](https://chrome-stats.com/d/com.scrollingisevil.replog) — 39 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/nl.rxdev.rxengine)