# Calibre Biometrics - LEGACY > Companion app for Calibre wearable, tracks metabolic and respiratory data. (iPhone/iPad app by BreathTaking Tech LLC.) - Source: https://appshunter.io/ios/app/calibre-biometrics-legacy/id1609706655 (this page in markdown: same URL + `.md`) - Developer: [BreathTaking Tech LLC](https://appshunter.io/developer/1609706657) - Category: Health & Fitness - Price: Free - Rating: 3.60/5 from 10 App Store ratings · 9 written reviews indexed - Age rating: 4+ - Requires: iOS 15.6 · 48 MB - Languages: English - Released: 2022-04-22 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/calibre-biometrics-legacy/id1609706655/reviews.md ## What is Calibre Biometrics? The companion app to the Calibre™ wearable breath/metabolic tracker allows you to view, record and analyze the rich biometric information obtained by the Calibre device. A calorie tracker with groundbreaking accuracy for any type of activity, and the first respiratory tracker ever, Calibre is amazing, fascinating, and fun too! ## Key features - View biometric data - Record biometric data - Analyze biometric data - Accurate calorie tracking - Respiratory tracking - Metabolic insights ## Recent user reviews (9 of 9) All indexed reviews: https://appshunter.io/ios/app/calibre-biometrics-legacy/id1609706655/reviews.md ### 5/5 — Very comfortable *2024-07-25* It took me a couple times to get the placement and straps right but I have to say it’s very comfortable and very durable. I ran in the rain and it worked well. Like seeing the actual calorie count too, even while just working at my computer. Its light weight and you get the hang of it after a few uses. ### 1/5 — Doesn’t Work *2024-06-04* App doesn’t work, which means the product doesn’t work. Took months to come only to not work. ### 5/5 — Love my Caliber! *2024-02-08* This device and app are amazing. I can’t believe it gives access to this much data, all of which required a visit to a metabolic lab in the past. And for anyone scared by a couple of old reviews saying they couldn’t pair their device, please don’t be. I initially did something wrong which caused pairing problems, but I reached out to support and they immediately got back to me, reset my connection and explained what I did wrong. No problems whatsoever since. ### 1/5 — Device will not pair with iPhone *2023-12-17* I tried paring two different devices with two different iPhones and none of the 4 combinations would connect. I’m not sure why a company would release a product with such a huge bug. Please fix this major issue. ### 4/5 — Very cool *2023-12-12* This is a very cool device, and the app is surprisingly easy to use. The interface is simple and easily displays the data you want to see. The device itself works well, and Calibre has great customer service to help with any problems. They get back to you within a day to answer any questions you have. I’ve had the device for a few weeks and really enjoy it. There is a learning curve for understanding what the device measures but there’s a lot of youtube videos to give simple explanations to what the data means. So far the overall experience of using the device and app has been great. No regrets here. ### 1/5 — Crap *2023-09-28* Waited months for the device. Setup stalls at Bluetooth pairing. Total waste of money ### 5/5 — Interesting *2023-03-02* Product seems amazing. I would like some comparisons to lab tested equipment. The app works well. I think it needs heart rate and zone calculations so you can compare heart rate to other data on same charts. This could be a big part of many athletes training program. ### 4/5 — CSV needed *2022-12-30* The ability to see and download the data im csv form would easily push this to a 5 star ### 4/5 — Great *2022-05-06* I’m enjoying using this. this app exceeded my expectation. Could get 5 stars with some minor improvements. Priority order * please add the ability for user to type notes about each session. * please add, if possible, a count-down timer for when the app is “warmed up” it’s currently just ready in about a minute. * Please add the ability to export data in CSV. This data could just be files that can be accessed via file sharing on iTunes. ## Frequently asked questions about Calibre Biometrics ### What is Calibre Biometrics used for? Calibre Biometrics is a companion app for the Calibre™ wearable breath/metabolic tracker. It allows users to view, record, and analyze the biometric information gathered by the device, offering insights into calorie expenditure and respiratory function. ### How accurate is the calorie tracking in Calibre Biometrics? The app boasts groundbreaking accuracy for calorie tracking across any type of activity, as stated in its description. This makes it a reliable tool for monitoring energy expenditure. ### Is Calibre Biometrics the first respiratory tracker app? Yes, the app is described as the first respiratory tracker ever. It provides users with the ability to monitor their respiratory data alongside metabolic information. ### What devices does Calibre Biometrics support? Calibre Biometrics is supported on iPhone and iPod devices. It is designed to work with the Calibre™ wearable tracker. ### What is the age rating for Calibre Biometrics? The app has an age rating of 4+, making it suitable for a wide range of users. This indicates it does not contain content inappropriate for younger audiences. ### How often is Calibre Biometrics updated? The latest version of Calibre Biometrics is 3.0.7 FINAL, which was last updated on June 7, 2025. This suggests a relatively active development cycle for the application. ### Does Calibre Biometrics have ads? No, Calibre Biometrics does not contain advertisements. The app is free to download and use without any ad interruptions. ### What is the user rating for Calibre Biometrics? Calibre Biometrics has a user rating of 3.6 stars based on 10 ratings. This indicates a generally positive but mixed reception from its user base. ## Version history (last 5 releases) ### 3.0.7 FINAL — 2025-06-07 Name change and link directing users to the App Store page for the new Calibre Biometrics app. ### 3.0.6 — 2024-10-08 Added delete session feature Bug fixes and performance improvements ### 3.0.5 — 2024-07-22 Bug fixes ### 3.0.3 — 2024-07-20 Bug fixes: Create new user issue resolved ### 3.0.2 — 2024-07-07 Bug fixes ## Apps similar to Calibre Biometrics | App | Rating | Price | Category | | --- | --- | --- | --- | | [gStreamBLE](https://appshunter.io/ios/app/gstreamble/id1517868969) | — | Free | Health & Fitness | | [Biorower](https://appshunter.io/ios/app/biorower/id1637456431) | — | Free | Health & Fitness | | [MediKarma](https://appshunter.io/ios/app/medikarma/id1644123758) | 4.6 (12) | Free | Health & Fitness | | [InspireHRV](https://appshunter.io/ios/app/inspirehrv/id1586140978) | — | Free | Health & Fitness | | [OB Health](https://appshunter.io/ios/app/ob-health/id1539038467) | 2.0 (2) | Free | Health & Fitness | | [Muscle View](https://appshunter.io/ios/app/muscle-view/id1484269901) | 5.0 (3) | Free | Health & Fitness | ## More apps by BreathTaking Tech LLC - [Calibre Biometrics](https://appshunter.io/ios/app/calibre-biometrics/id6743721886) - [Calibre Firmware Updater](https://appshunter.io/ios/app/calibre-firmware-updater/id6744065384) All apps by BreathTaking Tech LLC: https://appshunter.io/developer/1609706657 --- *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.*