# Calibrex — Train Smarter > Advanced portable fitness tracker for strength training with personalized insights. (iPhone/iPad app by CALIBREX INC..) - Source: https://appshunter.io/ios/app/calibrex/id6446998507 (this page in markdown: same URL + `.md`) - Developer: [CALIBREX INC.](https://appshunter.io/developer/1485591463) - Category: Health & Fitness, Sports - Price: Free - Rating: 3.10/5 from 18 App Store ratings · 13 written reviews indexed - Age rating: 4+ - Requires: iOS 13.0 · 97 MB - Languages: American English - Released: 2023-05-26 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/calibrex/id6446998507/reviews.md ## What is Calibrex? Welcome to Calibrex! As ex pro athletes, our missions is to democratize fitness technology by giving you access to the same metrics that currently only pro athletes have access to, all in a super portable tracker. We realized that all mainstream fitness trackers lack one thing. The ability to provide easy to understand physical exercise data - and more importantly, provide personalized insights and recommendations. That's why we set out to create the first ultra portable tracker, designed for those who lift. Calibrex 2 tracks workout metrics like reps, power output, and fatigue to asses your readiness and provide personalized recommendations, feedback, and workout summaries. Key Features: - Comprehensive Workout Tracking: Calibrex 2 captures your reps, power output, and fatigue, offering an in-depth analysis of your exercise sessions. - Personalized Recommendations: The Calibrex app understands your unique fitness journey and provides tailored suggestions to optimize your workouts, helping you achieve your goals faster. -Easy-to-Understand Data: Say goodbye to complex metrics. Calibrex 2 simplifies exercise data, presenting it in a user-friendly manner, so you can effortlessly understand and track your progress. -Workout Summaries: Get detailed summaries of your workouts, enabling you to review your performance, identify areas for improvement, and celebrate your accomplishments. ## Key features - Comprehensive workout tracking (reps, power, fatigue) - Personalized workout recommendations - Easy-to-understand exercise data - Detailed workout summaries - Assesses readiness and provides feedback ## Recent user reviews (10 of 13) All indexed reviews: https://appshunter.io/ios/app/calibrex/id6446998507/reviews.md ### 5/5 — Great product *2024-12-03* The team behind Calibrex clearly prioritizes customer success, providing outstanding support and continuous improvements. It’s a game-changer that is getting better by the day! I use it with every workout and any feedback I’ve provided has been addressed by a real person quickly. ### 1/5 — An expensive refrigerator magnet. *2024-07-10* Negatives: 1. Reps were almost always off. I kept a log - Sometimes by 1, but often by a larger amount. 2. Battery life was poor. 1 workout and that was it. 3. I submitted 2 support emails, no reply to either. 4. Frequently my workout would reset and get list if I had to reconnect. 5. With no warning, my device logged me out (While offline). I could not recover my password/log in. Re-Registering worked, but all my workout data is lost. Positives: 1. The magnets are very strong and even hold on dumbbells nicely. 2. The charts/graphs produced are nice. ### 1/5 — More customization needed in workout plan *2024-07-02* I want to give feedback on the exercise feature in the app. Currently, the app's exercise tracking is limited and inflexible. It follows a very linear sequence, and I find it difficult to adjust the order and sequence of exercises or add/remove reps based on the availability of gym equipment. It would be helpful to have the option to make these adjustments for a more personalized and adaptable workout experience. ### 3/5 — S&C Perspective *2024-05-17* Really wanted to love the device but just not accurate. I loved how mobile it was with just the magnet or wristband. However, it would typically miss half my reps on every exercise :(. Customer service was great and pushed out more updates to try to correct. Unfortunately it just didn’t get the job done, but they were great and refunded upon return. So instead I doubled the price and went with the Flex which is 100% accurate but not as mobile as only tracks barbell exercises. I see the potential here, it’s just not there yet! ### 1/5 — Super pricey device *2024-03-14* Device does not record properly and Apps UI is virtually unusable. ### 2/5 — Want to like it… *2024-03-02* Really want to like this device, and as a powerlifter, it would be extremely useful. Unfortunately, it’s way too early for this to be of any use. Reps aren’t tracked properly, velocity is missing on majority of performed lifts, app is clunky and not intuitive, cannot switch between imperial and metric units per exercise, etc. and that’s not counting the app UI itself (which, the less said the better). Overall, feels like I wasted $300. ### 5/5 — Fair pricing / good people *2024-02-15* Team actively communicates with users, seeks feedback and incorporates requested features regularly. Cool young company that seems to care. I thought the price was more than fair given other options in this space! ### 5/5 — Needed this *2024-02-12* Hardware shipped quickly and set up was easy, don't need anything beyond whats in the box so convenient to travel with. Gives me great insights into where I'm at and how and when it's time to level up. I use mainly for powerlifting and tracking my routines. ### 5/5 — Needed this *2024-02-10* Surprised to see such negative reviews here! Any issue I ran into was addressed by a real person. Glad to see something for weights in the fitness tracker space this has given me all the data I could reasonably ask for, new features roll out continually, etc. Name another wireless VBT option at this price point? ### 2/5 — Concept there but horrible execution *2023-12-29* Can’t pair the device at all.. username not accepted, etc.. too many flaws in app and device. Will be contacting to return if this is what it is… shame on you for putting this junk on the market when it wasn’t ready! ## Frequently asked questions about Calibrex ### What kind of workout data does Calibrex track? Calibrex tracks key workout metrics such as reps, power output, and fatigue. This data is used to assess your readiness and provide personalized feedback on your training sessions. ### How does Calibrex help optimize my workouts? Calibrex provides personalized recommendations based on your unique fitness journey and tracked data. These tailored suggestions aim to optimize your workouts and help you achieve your fitness goals more efficiently. ### Is the data presented by Calibrex easy to understand? Yes, Calibrex is designed to simplify complex exercise data into a user-friendly format. This allows you to effortlessly understand and track your progress without being overwhelmed by technical metrics. ### What are the benefits of the workout summaries in Calibrex? Workout summaries in Calibrex offer detailed reviews of your performance. They enable you to identify areas for improvement, celebrate your accomplishments, and gain a deeper understanding of your training sessions. ### What devices is Calibrex compatible with? Calibrex is currently supported on iPhone and iPod devices. Future updates may expand compatibility to other platforms. ### How often is Calibrex updated? The latest version of Calibrex, 8.0.0, was released on July 1, 2024. Updates are provided regularly to enhance features and performance. ### What is the user rating for Calibrex? Calibrex has a user rating of 3.1 stars based on 18 ratings. This feedback helps inform future development and improvements. ### Does Calibrex have ads? No, Calibrex does not contain advertisements. The app is free to download and use without any ad interruptions. ## Version history (last 5 releases) ### 8.0.0 — 2024-07-01 Features: - Slower rep detection improvements Remember you can always submit a new feature request or report bugs at features.calibrex.com Have a good lift and stay fit! ### 7.2.0 — 2024-05-30 Features: - Slower rep detection improvements Remember you can always submit a new feature request or report bugs at features.calibrex.com Have a good lift and stay fit! ### 7.1.0 — 2024-05-29 Features: - Slower rep detection improvements Remember you can always submit a new feature request or report bugs at features.calibrex.com Have a good lift and stay fit! ### 7.0.1 — 2024-05-11 Features: - Editable live trainer and history - New home screen design - Ability to resume workouts that were in progress Fixes for: - Bluetooth pairing errors - Rep correction changes not being saved - Entire sets going uncounted - Incorrect dates on history graphs - Home page greeting - Rep correction data not saved Remember you can always submit a new feature request or report bugs at features.calibrex.com Have a good lift and stay fit! ### 7.0.0 — 2024-05-07 Features: - Editable live trainer and history - New home screen design - Ability to resume workouts that were in progress Fixes for: - Bluetooth pairing errors - Rep correction changes not being saved - Entire sets going uncounted - Incorrect dates on history graphs - Home page greeting - Rep correction data not saved Remember you can always submit a new feature request or report bugs at features.calibrex.com Have a good lift and stay fit! ## Apps similar to Calibrex | App | Rating | Price | Category | | --- | --- | --- | --- | | [RepOne Personal](https://appshunter.io/ios/app/repone-personal/id1496454046) | 3.6 (16) | Free | Health & Fitness | | [RepSpeed](https://appshunter.io/ios/app/repspeed/id1584279988) | 4.5 (17) | Free | Health & Fitness | | [NNOXX](https://appshunter.io/ios/app/nnoxx/id6446701354) | 5.0 (4) | Free | Health & Fitness | | [Crandall Fitness](https://appshunter.io/ios/app/crandall-fitness/id6457260118) | 5.0 (2) | Free | Health & Fitness | | [Pulse Device](https://appshunter.io/ios/app/pulse-device/id1583183946) | 5.0 (6) | Free | Health & Fitness | | [Super Vegans Academy](https://appshunter.io/ios/app/super-vegans-academy/id1598590372) | — | Free | Health & Fitness | ## More apps by CALIBREX INC. - [Calibrex](https://appshunter.io/ios/app/calibrex/id6741951538) All apps by CALIBREX INC.: https://appshunter.io/developer/1485591463 --- *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 2026-06-10.*