# Calibrex — Train Smarter > Magnetic wearable for precise weightlifting tracking and personalized audio coaching. (iPhone/iPad app by CALIBREX INC..) - Source: https://appshunter.io/ios/app/calibrex/id6741951538 (this page in markdown: same URL + `.md`) - Developer: [CALIBREX INC.](https://appshunter.io/developer/1485591463) - Category: Health & Fitness - Price: Free - Rating: 3.73/5 from 11 App Store ratings · 8 written reviews indexed - Age rating: 12+ - Requires: iOS 15.1 · 150 MB - Languages: English - Released: 2025-04-10 - Data updated: 2026-06-24 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/calibrex/id6741951538/reviews.md ## What is Calibrex? Meet Calibrex — the wearable built for lifting. Calibrex is a tiny magnetic wearable that captures every rep, rest, and movement with unmatched precision — giving you deep, personalized insight into your training, and live audio coaching. Whether you're chasing strength, speed, or endurance, Calibrex adapts to your goals and pushes you further with intelligent feedback, advanced tracking, and tailored workouts that grow with you. Get coached through every set with live audio feedback — tailored to your goals, training style, and performance history. Set Score – How well you executed each rep and how intensely you pushed. Difficulty Score – How close you came to muscle failure. Speed Score – How closely your rep speed matched your target training zone. Tempo Score – How much time your muscles spent under tension. Discover powerful trends across your training — like increasing bench press volume, longer rest times, or missed muscle groups. Get a clearer picture of how balanced your program is across your entire body. 25M Reps & Counting. 1500 + professional weightlifters, coaches, university programs, and fitness enthusiasts across more than 15 countries. ## Key features - Precise rep, rest, and movement tracking - Live audio coaching tailored to goals - Personalized insights into training performance - Advanced tracking and tailored workouts - Set Score, Difficulty Score, Speed Score, Tempo Score - Discover training trends and program balance ## Recent user reviews (8 of 8) All indexed reviews: https://appshunter.io/ios/app/calibrex/id6741951538/reviews.md ### 1/5 — Can’t do bespoke workout *2026-05-23, version 1.7.25* If you want to follow a handful of pre set exercises, great. Even that it’s inaccurate in tracking and have to constantly correct the recording. Also the feedback is very unclear. Bunch of charts and numbers but no way to interpret. I returned the device and they were a challenge to work through that. Still haven’t credited my card so I put it into dispute. I think it’s a startup with like 6 people so makes sense, just beware what you are getting into. I like what they are tackling and this will work at some point. ### 5/5 — Don’t sleep on this device - total game changer in FitTech *2026-04-10, version 1.6.24* There’s not a single product akin to Calibrex. There have been kickstarters that failed. Calibrex stands in a class of its own it’s brand new yet the owners and founders remain completely dedicated and reachable for feedback, troubleshooting and updates. Which btw there are constant new features. Personally, Calibrex has been the medium That has enabled me to be consistent in my exercise routine for the first time in my life and I’m 40. Prior to Calibrex it was random guessing and failure. Now I use it 3-5x a week with progressive overload tailored to me. Love this device. ### 5/5 — Great product, and only getting better! *2026-04-03, version 1.6.24* The Calibrex app has improved substantially as to where it was in late 2025. I know firsthand, as I submitted literally dozens of enhancement requests to this U.S.-based small startup. The owners reached out to talk on multiple occasions and most importantly, addressed many of the earlier software issues. The customer service is second to none and the accuracy of repetition counting is a 9 out of 10 (I expect it to improve with future updates). Philip and Nick sent me a replacement unit when mine had connectivity issues, and it has worked flawlessly ever since. Shipping was fast and free. This is one of the few apps that when updated in the App Store, I will open it to see the new enhancements page and whatever issues were addressed. Yes, the updates have been that good. I was not compensated for this review. ### 2/5 — I want to like it *2026-04-01, version 1.6.22* I was a pre-order - I love the idea but the execution leaves a lot to be desired. The device itself seems well made and it does learn but it missed reps on all but the last set of my workout. The bigger issue is that unless you catch the error immediately, you can't go back and fix either the rep count or the weight. That alone makes me very skeptical about using the app again. Beyond that, there are a variety of v1 polish issues - maybe the biggest is the incredibly painful exercise reorder issue. All of this can be fixed - we'll see if they do. ### 2/5 — Error loop *2026-02-22, version 1.6.5* App gets to end and doesn’t ask for email but won’t let you finish setting up your device without email. ### 5/5 — So COOL!!! *2025-07-19, version 1.2.14* I got a calibrex to take over my training and so far I love it! The audio guidance through the workout is a game changer, I just do what it says in my headphones and get a good workout every time. Now that I have the hang of it, I don’t see how I can go back to working out without it. One more thing: I found a feature was missing, asked the team in the app chat, and the built it for me THE SAME DAY!!! ### 5/5 — Love the new free train mode *2025-07-19, version 1.2.14* I’ve been training with a calibrex on and off for about 6 months now, but this free train mode has changed the game. Great new feature. Keep it up! ### 1/5 — Worst app ever *2025-05-22, version 1.1.3* App is awful, glitches a lot, it would not save workouts, will delete exercises, just bad. It’s like it was created for IOs 2. The more I try to use this app the more I get frustrated. This is total garbage ## Frequently asked questions about Calibrex ### What is Calibrex? Calibrex is a magnetic wearable device designed for weightlifting. It precisely captures every rep, rest, and movement to provide deep, personalized insights into your training and offers live audio coaching. ### What kind of feedback does Calibrex provide? Calibrex offers live audio feedback tailored to your goals, training style, and performance history. It provides scores for Set Score, Difficulty Score, Speed Score, and Tempo Score to help you understand your performance. ### How does Calibrex help with program balance? Calibrex helps you discover powerful trends across your training, such as increasing volume or missed muscle groups. This gives you a clearer picture of how balanced your program is across your entire body. ### Who uses Calibrex? Calibrex is used by over 1500 professional weightlifters, coaches, university programs, and fitness enthusiasts in more than 15 countries. It has tracked over 25 million reps. ### What devices does Calibrex support? Calibrex is available for iPhone, iPad, and iPod devices. ### What is the age rating for Calibrex? Calibrex has an age rating of 12+, making it suitable for teenagers and older. ### How often is Calibrex updated? The latest version of Calibrex is 1.6.22, and it was last updated on March 26, 2026. Updates ensure continued reliability and feature enhancements. ### Does Calibrex have ads? No, Calibrex does not contain advertisements. It is a completely ad-free experience for users. ## Version history (last 5 releases) ### 1.8.2 — 2026-06-12 Improved AI Voice Agent and coaching! Home screen upgrades Data display upgrades Stability fixes ### 1.7.25 — 2026-05-19 - Improved Tracking - Improved Stability ### 1.7.20 — 2026-05-07 Huge update, starting with the biggest: - The Calibrex coaching voice agent! Double press anytime to talk to your coach! - Ask for weight, rep, and rest adjustments, recommendations, redo, new workouts and more! - New coach personas: Luna, Jet, Sami, and Sean. Each have a unique personality and motivation style - Improved scoring based on set completion and goal-specific metrics - Improved coaching feedback - Better workouts -Bug fixes ### 1.6.22 — 2026-03-26 Pumped up update: - Improved motion tracking and rep counting! - Infinite coach-generated, tailored workouts - Cleaner audio - Improved Calibrex connectivity and battery life ### 1.6.12 — 2026-02-24 Thank you to our athletes! Here's what's new: - Apple Health Integration! (sync your workouts to Apple Health) - Environment selection (build your gym for individualized training) - Quick coach settings (in the Calibrex menu) - Resume workouts (keep going after you close the app) - Smooth audio (improved audio performance, volume, and music interaction) - More custom workouts (3 max -> unlimited!) - Easy redo (triple-click or use the app-button when resting) ## Apps similar to Calibrex | App | Rating | Price | Category | | --- | --- | --- | --- | | [Enode](https://appshunter.io/ios/app/enode/id6450605402) | — | Free | Health & Fitness | | [Calibre Firmware Updater](https://appshunter.io/ios/app/calibre-firmware-updater/id6744065384) | — | Free | Health & Fitness | | [Frontier X](https://appshunter.io/ios/app/frontier-x/id1483444499) | 4.5 (298) | Free | Health & Fitness | | [ONVY — AI Health Coach](https://appshunter.io/ios/app/onvy-ai-health-coach/id1580933137) | 4.3 (42) | Free | Health & Fitness | | [Spotr: Strength Training](https://appshunter.io/ios/app/spotr-strength-training/id6520384981) | 4.7 (600) | Free | Health & Fitness | | [Strongsplit - Get Stronger](https://appshunter.io/ios/app/strongsplit-get-stronger/id6742700868) | 3.8 (33) | Free | Health & Fitness | ## More apps by CALIBREX INC. - [Calibrex](https://appshunter.io/ios/app/calibrex/id6446998507) All apps by CALIBREX INC.: https://appshunter.io/developer/1485591463 ## Related topics [calibrexinc](https://appshunter.io/ios/topics/calibrexinc) · [calibrex](https://appshunter.io/ios/topics/calibrex) --- *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 2026-06-24.*