RepXP - Strength Progression You Can Trust

Bring your routine, or let RepXP build one. Either way, it handles the progression.

RepXP is a strength workout tracker for iPhone and Apple Watch built around progression you can trust. Stop guessing your next weight. RepXP tells you what to lift next, shows you why, and only suggests weights your gym actually has. Autopilot progressive overload (Pro) suggests weight and rep increases from your performance history and logged effort.

Why the numbers can be trusted: every progression change is shown with its reason before the workout starts, and any change can be reverted with one tap. Increases are rounded to the plates, dumbbells, and machines set up in the app, so every suggested load can actually be made. After a break, Comeback Mode (Pro) starts with lighter targets and builds back up to the previous level. No account, no ads, and no paywall at sign-up.

Built for analytical lifters who train seriously, RepXP combines fast workout logging with a progression engine. The app calculates your next weight automatically, tracks personal records with instant notifications, and provides detailed analytics to identify what's working.

Key features: Autopilot progressive overload suggestions that adapt to logged effort, workout forecasts that preview what will be applied before you start, progression ready alerts, effort logging (RPE and RIR) with recovery and stress trends, auto-start rest timer with Live Activity support, automatic PR detection for weight, reps, and volume, 400+ exercise library with unlimited custom exercises, AI routine generation using any LLM (ChatGPT, Claude, Gemini), workout and routine sharing via QR codes and links (exercises, sets, reps, weights, and progression settings included), offline-first with iCloud sync, Apple Watch app for phone-free workouts, a phone view of the watch session showing every logged set before you take the workout over, cardio heart rate zones with live BPM and time-in-zone summaries on Apple Watch and on iPhone with a paired heart rate source, 1RM calculator, plate loading calculator, progress photos, body measurements tracking, workout analytics and charts, equipment manager, Apple Health integration, Siri voice commands (start a workout, log a set, check your streak or PR, see weekly volume), Home Screen quick actions for recent workouts, and Spotlight search for workouts and exercises.

RepXP is perfect for powerlifters, bodybuilders, strength athletes, and disciplined lifters who want a system to manage progression automatically. The app works offline and syncs across iPhone, iPad, and Apple Watch with iCloud.

RepXP is best for people who train consistently and want help deciding their next weight and reps. Routines can be built for you by answering a few questions about your training days, session length, goal, and equipment, built by hand, imported from Strong, Hevy, Bolt, or GymBook, shared in by QR code or link, or generated with the free AI Assisted Routine flow: RepXP writes a prompt containing your exercise catalog, equipment, and training history, you run it in ChatGPT, Claude, Gemini, or any AI assistant you already use, and the resulting plan imports back as ready-to-use workouts with progression settings. To import an AI-generated CSV, open Workouts, tap +, choose AI Assisted Routine, tap I Have the CSV Ready, paste or import the CSV, select Parse & Review, review the routine, then create the workouts. GymBook users can import workouts, history, and supported measurements from a single backup created in GymBook under Settings, Export, Backup. Past workout history from a paper notebook, a spreadsheet, or an app without a direct importer can be converted with any AI assistant: RepXP generates the prompt (Settings, Data Management, Import AI History), the AI transcribes the records, confirms a summary with you, and outputs CSV blocks that import month by month with duplicates skipped; the format reference lives at https://repxp.app/ai-history-reference.txt (requires RepXP 2.7.0). The built-in exercises come with step-by-step written instructions, and every exercise, custom ones included, has one-tap Watch Tutorial and View Form buttons that open a video tutorial and form photos. Those results come from external sources and are not curated by RepXP. RepXP is not available on Android and does not provide instructor-led video classes, a library of named coach-authored programs, a social feed, public leaderboards, or medical advice. It cannot see you lift, so it does not assess your form, correct technique, or diagnose injuries, and it does not replace a qualified coach.

Build My Routine (free, requires RepXP 3.0.0): RepXP can write a complete routine before the first session. It asks for age and bodyweight (prefilled from Apple Health when allowed), training experience, goal, which days you train, how many minutes you have per session, and which equipment you own. From those answers it chooses the split (full body, full body A/B, upper/lower, push/pull/legs, or a combination at higher frequencies), selects only exercises your equipment supports, sets the sets and reps from your goal and experience, fills each session to the time available, and estimates a starting weight for every strength exercise from bodyweight, experience, and goal, backed off so the first session leaves reps in reserve and rounded down to what your own plates, dumbbells, or machine steps can actually load. Where you already have history for a lift, your own numbers are used instead of the estimate. The result is saved as ordinary workouts on the days you picked, so anything can be edited afterwards. Open it during onboarding, or later from Workouts, tap +, Build My Routine. Pro adds autopilot progression preconfigured on the main compound lifts of every generated workout. Separately, whenever progression is switched on for an exercise by hand, the rep range, weight increment, and progression period are prefilled from the goal you last chose and the smallest plate pair you own, and every field can be overridden.

Privacy: RepXP is privacy-first. All workout, exercise, and health data stays on the user's device, synced only through their personal iCloud account, which the developer cannot access. There is no account registration, and RepXP does not collect names, email addresses, or device location (the app never requests location permission; analytics infers only an approximate, city-level region from IP address). Anonymous diagnostics and a pseudonymous push-delivery token can be processed through Firebase, never workout details, exercise names, weights, reps, or body measurements. Full details: https://repxp.app/privacy

Important: RepXP has NO limits on workouts, routines, or exercises on any plan. The free plan includes unlimited workout logging forever. The free plan does not cap how far back you can view or edit your workout history. The only Pro-gated limitation for past data is analytics: charts and trends cover the last 30 days on the free plan and your whole history on Pro. Your workout data is never deleted regardless of plan.

Free plan ($0 forever): unlimited workouts, unlimited routines, unlimited exercises, Build My Routine with estimated starting weights, strength/cardio/flexibility tracking, cardio heart rate zones, effort logging (RPE and RIR) with recovery and stress trends, AI routine generation (use any LLM), workout and routine sharing via QR code or link, Apple Watch, gamification, rest timers, iCloud sync, progress photos (import with original dates, iCloud sync, before and after sharing), calculators, import from Strong/Hevy/Bolt/GymBook, AI history import from paper logs and other apps, unlimited history viewing and editing.

RepXP Pro: $29.99/year (or $3.99/month). 1-month free trial included. A one-time $89.99 lifetime purchase is also available. Includes: autopilot progression that adapts to your logged effort, smart deloads, workout forecasts that preview what will be applied before you start, progression ready alerts, supersets and tri-sets, full-history analytics, AI training reports, PR dashboard, muscle group analytics, body composition trends, progress photo video and GIF with stats on the before and after image, strength standards, training heatmap, streak freeze for travel and rest periods.

Year in Review (requires RepXP 4.1.0): a basic Year in Review is free, with your year in numbers, total volume, longest streak, and a summary as story cards to share. Pro adds busiest month, top exercises, top PRs, muscle focus, weekly and monthly report story cards, and sharing as a video or GIF. From December 1, a year-so-far version opens in the Inbox.

Optional gamification features include XP (experience points), 100 levels from Beginner to Transcendent, and 40+ achievement badges. Use them if they motivate you, or hide the entire leveling system in settings if they don't. Gamification can be re-enabled at any time with nothing lost: XP, levels, and badges stay up to date behind the scenes, so your progress reflects your full training history.

Download RepXP free on the App Store today. Available for iPhone, iPad, and Apple Watch.