# RPI-Rep Performance Index > RPI-Rep Performance Index (iPhone/iPad app by Antonio Villasenor.) - Source: https://appshunter.io/ios/app/rpi/id6759337310 (this page in markdown: same URL + `.md`) - Developer: [Antonio Villasenor](https://appshunter.io/developer/1878151352) - Category: Health & Fitness - Price: Free - Age rating: 4+ - Requires: iOS 17.0 · 2 MB - Languages: American English - Released: 2026-02-24 - Data updated: 2026-03-15 - User reviews in markdown: https://appshunter.io/ios/app/rpi/id6759337310/reviews.md ## What is RPI? RPI — Rep Progression Index Track your workouts with precision. RPI is a clean, no-nonsense workout tracker built for lifters who follow structured training programs. Smart Workout Templates Set up your training split once — RPI automatically rotates through your workout days and periodization blocks so you always know what to do when you walk into the gym. Guided Warm-ups Dynamic mobility, activation, and movement prep routines tailored to each workout day. Never skip your warm-up again. Mid-Workout Flexibility Need to swap an exercise? Long press to replace it on the fly without losing your progress. Training Analytics Track workout streaks, volume trends, and personal records. See how your training evolves over time. Body Weight Tracking Log your body weight and visualize trends alongside your training data. Full Workout History Review every past session with detailed exercise logs, sets, reps, and weights. Built for Serious Lifters No ads. No social features. No fluff. Just you and the iron. ## Version history (last 4 releases) ### 1.3.0 — 2026-03-14 A native iOS workout tracking app built for lifters who follow structured double progression programs. RPI tracks your sets, reps, and weight across training cycles and automatically tells you when to increase weight based on double progression logic — hit your rep target across all sets, and the app flags it's time to go heavier. Features: -Double Progression Engine — Automatically detects when you've hit your rep ceiling and suggests weight increases -Custom Training Cycles — Build multi-week training blocks with your own workout splits and exercises -Compact Number Pad — Purpose-built for the gym. Log weight and reps fast between sets without fumbling with a standard keyboard -Active Workout View — Auto-saves your session so a crashed app or accidental close won't lose your work -Progression Charts — Track weight and volume trends over time -Body Weight Tracking — Log and chart your body weight alongside training data -Warmup Calculator — Configurable warmup sets based on your working weight -Data Export — Export workout history and body weight logs as CSV -lbs / kg Support — Switch units globally from settings -Dark Mode — Full dark mode support No external dependencies. No backend. All data stays on your device. ### 1.2 — 2026-03-13 Version 1.2.0 — Release Notes Mid-Session Exercise Flexibility Adapt exercises on the fly — switch equipment type (Barbell → Dumbbell → Cable → Machine → Bodyweight) with one tap from the exercise menu Rename any exercise mid-workout for quick notes or variations Swap to a completely different exercise from the built-in library All mid-session changes are temporary — your templates stay untouched New visible "Remove Set" button makes it easy to adjust set count without hidden gestures Exercise & Warmup Libraries Browse a curated library of exercises organized by muscle group when building templates Built-in warmup library with common warm-up routines Search and filter to quickly find what you need Plate Calculator See exactly which plates to load on each side of the bar Accessible from Settings or right inside your active workout Supports both lbs and kg Cycle Analytics View total session volume (sets × weight × reps) in workout history Toggle between weight and volume trends on exercise history charts Cycle summary screen with weekly volume chart and progression breakdown Auto-shows when you complete the last workout in a cycle Improved Onboarding New interactive setup wizard walks you through creating your first cycle and workout Creates real data you can use immediately — no dummy content UI & Stability Improvements Cleaner workout toolbar layout — action buttons moved to a dedicated bar Simplified number pad with clean phone-dialer layout Auto-scaling charts that zoom to your actual data range Fixed a bug that could show a blank screen when resuming a workout Per-hand weight labels ("lbs ea") for dumbbell exercises Equipment type badges on every exercise card ### 1.1.0 — 2026-03-11 Version 1.1.0 — Release Notes Mid-Session Exercise Flexibility Adapt exercises on the fly — switch equipment type (Barbell → Dumbbell → Cable → Machine → Bodyweight) with one tap from the exercise menu Rename any exercise mid-workout for quick notes or variations Swap to a completely different exercise from the built-in library All mid-session changes are temporary — your templates stay untouched New visible "Remove Set" button makes it easy to adjust set count without hidden gestures Exercise & Warmup Libraries Browse a curated library of exercises organized by muscle group when building templates Built-in warmup library with common warm-up routines Search and filter to quickly find what you need Plate Calculator See exactly which plates to load on each side of the bar Accessible from Settings or right inside your active workout Supports both lbs and kg Cycle Analytics View total session volume (sets × weight × reps) in workout history Toggle between weight and volume trends on exercise history charts Cycle summary screen with weekly volume chart and progression breakdown Auto-shows when you complete the last workout in a cycle Improved Onboarding New interactive setup wizard walks you through creating your first cycle and workout Creates real data you can use immediately — no dummy content UI & Stability Improvements Cleaner workout toolbar layout — action buttons moved to a dedicated bar Simplified number pad with clean phone-dialer layout Auto-scaling charts that zoom to your actual data range Fixed a bug that could show a blank screen when resuming a workout Per-hand weight labels ("lbs ea") for dumbbell exercises Equipment type badges on every exercise card ### 1.0 — 2026-02-24 No release notes. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-03-15.*