# IronOS Strength — Strength is Elemental > Workout logger for serious lifters tracking strength progress and durability. (iPhone/iPad app by Data Driven Athlete LLC.) - Source: https://appshunter.io/ios/app/ironos-strength/id6763789414 (this page in markdown: same URL + `.md`) - Developer: [Data Driven Athlete LLC](https://appshunter.io/developer/1895417340) - Category: Health & Fitness, Sports - Price: Free - Rating: 5.00/5 from 7 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 15.1 · 49 MB - Languages: English - Released: 2026-05-09 - Data updated: 2026-08-14 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/ironos-strength/id6763789414/reviews.md ## What is IronOS Strength? IronOS Strength is a free workout logger built for anyone serious about getting stronger. Log every set, track your progress, and measure your strength over time. Work with a coach, coach yourself for free, or let AI coach you. AI COACHING A real coach, built into the app. A guided intake learns your schedule, equipment, and goals, then IronOS writes your program — its own programming logic, powered by Claude. From there it reads your training log: your logged sets, your weight progression, your feedback on how each session went. Check-ins on fatigue, sleep, and life stress adjust your volume and intensity. Miss a day and your week reshuffles itself. DURABILITY SCORE A strength retention metric that measures how well you're holding onto your strength as you age. Built on established powerlifting standards including DOTS normalization and IPF age coefficients, the score quantifies how much of your strength you're retaining, without ever needing to test a 1RM. LOG WITH PRECISION Pre-calculated warmups, automatic plate math, and RPE-based autoregulation. IronOS shows you exactly what to load, tracks your rest, and captures every rep. No spreadsheets, no guesswork. TRACK WHAT MATTERS IronOS tracks PRs automatically across every rep range. The Progress tab charts your top sessions over time for each tracked lift. COACH INTEGRATION Working with a coach? They see every set as you log it. They can add notes to individual exercises, leave session-level feedback, and review your form check videos. All in one place. FORM CHECKS Record and upload videos mid-workout with full context attached. Your coach reviews them alongside your sets, weights, and RPE, not in a separate thread. BUILT FOR BARBELL TRAINING Configurable bar weights, plate inventory, cable stack settings, and deadlift start weight. Equipment that matches your gym, not a generic default. APPLE HEALTH Sync bodyweight automatically. Your Durability Score stays current without manual entry. Built for lifters who care about the long game. SUBSCRIPTION IronOS is free to use. AI Coaching is an optional auto-renewing subscription: free for 14 days, then $7.99/month. Payment is charged to your Apple ID account when the free trial ends. Your subscription renews automatically unless canceled at least 24 hours before the end of the current period. Cancel during the trial and you won't be charged. Manage or cancel anytime in your Apple ID account settings. Terms of Use: https://ironos.app/terms Privacy Policy: https://www.ironos.app/privacy ## Key features - Workout logging with precision - Strength progress tracking - Durability Score metric - Automatic PR tracking - Coach integration - Form check video uploads - Apple Health sync ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/ironos-strength/id6763789414/reviews.md ### 5/5 — Outstanding *2026-06-18* I’ve used two other apps with a coach, and I actually log in THIS app and screenshot to paste into theirs. This is so superior to easily access previous lifts, track PRs, and most exciting it integrates RPE to every set. Best strength app out there! ## Frequently asked questions about IronOS Strength ### What is the Durability Score in IronOS Strength? The Durability Score is a strength retention metric that quantifies how well you maintain your strength as you age, based on powerlifting standards like DOTS normalization and IPF age coefficients. It helps you understand your strength longevity without needing to test your 1RM. ### How does IronOS Strength help with workout logging? IronOS Strength offers precise logging with pre-calculated warmups, automatic plate math, and RPE-based autoregulation. It clearly indicates what weight to load, tracks rest periods, and records every rep, eliminating the need for spreadsheets or guesswork. ### Can my coach use IronOS Strength? Yes, IronOS Strength features coach integration. Your coach can view every set you log in real-time, add notes to exercises, provide session feedback, and review your form check videos all within the app. ### How does IronOS Strength handle form checks? You can record and upload videos directly within your workout session. These videos are attached with full context, including the sets, weights, and RPE, allowing your coach to review them alongside your training data. ### Does IronOS Strength support Apple Health? Yes, IronOS Strength syncs your bodyweight automatically with Apple Health. This ensures your Durability Score remains current without requiring manual data entry. ### What devices is IronOS Strength available on? IronOS Strength is currently supported on iPhone and iPod devices. It is designed for iOS users looking to enhance their strength training experience. ### How often is IronOS Strength updated? The latest version of IronOS Strength is 1.4.0, which was last updated on June 19, 2026. This indicates a recent update, suggesting ongoing development and support for the application. ### Does IronOS Strength have ads? No, IronOS Strength does not contain advertisements. As a free application with no in-app purchases, users can expect an ad-free experience focused solely on their training. ## Version history (last 5 releases) ### 2.0.0 — 2026-08-11 What's new in 2.0! Three ways to train. One of them is new. 1. Work with your coach. Your programming, your check-ins, all in one place. 2. Coach yourself. Build it, log it, track it. Free, as always. 3. Let AI coach you. New in 2.0. The AI coach is IronOS's own programming logic powered by Claude. It sees your actual training log — your logged sets, your weight progression, your feedback on how each session went. It knows whether last week landed before it writes this one. • A guided intake learns your schedule, equipment, and goals • Programming that adapts to your real numbers, not just your stated plan • Check-ins on fatigue, sleep, and life stress, with automatic volume and intensity adjustments • Missed workouts reshuffle across the rest of your week • Availability toggles so travel and busy weeks don't derail your program • Conservative first programs that build you up instead of burning you out • Workout previews for anything on your calendar Plus a faster, cleaner logger, smarter exercise naming, calendar fixes, and serious security hardening under the hood. AI Coaching is an optional subscription ($7.99/month). ### 1.6.5 — 2026-07-27 New in 1.6.5 Apple Health / HealthKit - Import cardio workouts from Apple Watch (walks, runs, rides, etc.) - Map Apple Watch effort rating to RPE (1-10) - Fix duplicate cardio imports (check all existing logs, not just manual) - Fall back to Apple's estimated effort when athlete doesn't rate - Updated Apple Health permission strings and support/privacy copy Workout Logger - Workout builder "How workouts work" guide (auto-opens first time) - Workout rename (tap title in logger header) - Larger weight/reps/RPE adjustment buttons - Weighted bodyweight lifts show BW + added weight separately - Fix RPE reference modal getting jammed at top of screen - Fix exercise picker sliding under status bar - Fix weight field disappearing on bodyweight exercises when cleared Draft / Resume - Fix resume clobbering logged workout drafts - Guard draft save against weight-stripping - Surface lingering prior-day workouts on Today screen - Fix unfinished past workouts not showing resume banner Settings / UX - Auto-save settings on More tab (no more Save button) - Reset Tips & Onboarding option in More > Data - Onboarding card shows above sessions, not instead of them - Video comments sorted chronologically (coach portal + client app) - Rest timer bell defaults to ON, persists through navigation - Fix offline app launch delay (cache-first) - Fix workout save hanging offline - Dynamic OTA update ID in version string Other - Swipe-to-delete on completed workout cards - Fix calendar not refreshing after saving a workout - Password reset page on marketing site - Security hardening - Added crash reporting for faster bug fixes Thanks for all the feedback and please keep it coming! ### 1.5.0 — 2026-07-11 New in 1.5.0 Light Mode - Full light mode with Dark / Light / System toggle in Settings - Theme-aware wordmark adapts to light/dark backgrounds - Refined colors, borders, buttons, and RPE badges for light mode Today Tab - Daily quote now appears after workouts are completed - Completed workouts show as compact cards at the bottom - Compact cardio cards (name, minutes, RPE, time in a single row) - Long-press to edit or delete cardio entries - Cleaner rest-day layout - Add Workout button pinned to the bottom Calendar Tab - Note search across all completed workouts and coach comments - Compact cardio rows matching the Today tab - Cleaner session rows - Month name replaces the "Today" button in the top bar - Improved month grid with circular day selection - Shared Add Workout bar across week and month views Progress Tab - Tap a session card to open the workout summary - Cleaner durability ### 1.4.5 — 2026-06-27 New in 1.4.5 The logger got a serious cleanup. Logging a set should feel like logging a set, not reading a spreadsheet. This update strips the noise so you can focus on the work in front of you. What's new: - The logger opens up one set at a time. Only your active set shows full controls, warmups included. - Your current set is highlighted so you always know where you are. - Cleaner steppers and a lighter Finish button. - On-target sets stay neutral. Color only shows up when you drift off your prescription. - Your previous lift now shows the date you hit it. - Resuming a session shows a loading spinner instead of a blank screen. - When your coach updates a workout mid-session, you decide whether to pull in the change. Also in this build: - Tapping a future workout opens the details instead of dropping you into the logger. - Session duration is now based on your actual work, not the clock running in the background. Fixes: - You stay logged in if your connection drops during a session. - Previous-lift numbers now match the right sets every time. - Edits and deletions you make now reach your coach correctly. - Copying a workout keeps your full rep and RPE ranges intact. - Exercise search no longer cares about capitalization. ### 1.4.0 — 2026-06-19 New in 1.4.0 IronOS now works offline. Open the app on a plane, in a basement gym, or anywhere your signal drops, and your workouts, history, and programming are right there from your last sync. No more watching the splash screen hang while it waits for a connection. TRAIN OFFLINE - The app loads from your saved data when there's no network - No more getting stuck on the splash screen when you're out of range A FASTER, CLEARER CALENDAR - New month view you can scroll, with a day panel for the details - Moving and deleting sessions is instant now, no more multi-second freeze - Week view is now a simple day picker - Set, edit, and clear your available date ranges, with a cleaner look in dark mode BETTER LOGGING - Your reps from last session carry over, and anything outside your target range gets flagged in amber - Re-type your own custom exercises - The in-progress workout card shows how far along you are on each exercise - "Last time" now pulls from your most recent session by date - Fixed a crash on some drafts, and Finish now waits for your videos to finish uploading MORE ACCURATE WORKOUT TIMES IN APPLE HEALTH - Duration now reflects the work you actually did, with longer rest built in for barbell movements and real logged time for timed exercises - Fixed durations that came out far too short when resuming a draft EQUIPMENT AND PLATE MATH - Cable machines now have their own plate math with largest-plate presets - Equipment is grouped into Barbell and Cable sections FIXES - Kettlebells no longer show a pound value with a kg label - The PR star now marks your heaviest set, not the first one to beat your record - Copied workouts no longer disappear when the name matches an existing session - Plate math handles sub-pound micro plates correctly - "Today" updates properly after midnight - The tagline no longer blinks on launch We also tightened security behind the scenes. Keep the feedback coming! --- *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 2026-08-14.*