# Flex 'n Burn — 30 Min CardioMuscular Workout™ > Fitness app for booking classes, managing accounts, and accessing 30-minute HIIT workouts. (iPhone/iPad app by Mariana Tek Corporation.) - Source: https://appshunter.io/ios/app/flex-n-burn/id1434456191 (this page in markdown: same URL + `.md`) - Developer: [Mariana Tek Corporation](https://appshunter.io/developer/1178746980) - Category: Health & Fitness, Lifestyle - Price: Free - Rating: 5.00/5 from 250 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 16.0 · 38 MB - Languages: American English, Canadian French, Japanese, Mexican Spanish - Released: 2019-12-11 - Data updated: 2026-08-27 - Monetization: ad-supported - User reviews in markdown: https://appshunter.io/ios/app/flex-n-burn/id1434456191/reviews.md ## What is Flex 'n Burn? Get the free Flex 'n Burn app today to view locations, book classes, buy passes and manage your account on the go. Flex 'n Burn's 30 Minute CardioMuscular Workout™ classes utilize the perfect combination of hi-tech machines and a secret fusion of science based (HIIT) high intensity interval training methods designed to maximize your workout results while saving you time. Takes Just 30 Minutes to Flex ‘n Burn 950 Calories! Download the Flex 'n Burn app today and join us in studio to see what the “Most Efficiently Effective Workout in the World” is all about! ## Key features - Book classes - Manage account - View locations - 30-minute workouts - HIIT training - CardioMuscular Workout™ ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/flex-n-burn/id1434456191/reviews.md ### 5/5 — Excellent Workout *2024-11-15* Each & every time Flex n Burn is an excellent, strategic, effective, workout &&& done in 30 minutes ~ win-win🏆 ## Frequently asked questions about Flex 'n Burn ### What does the Flex 'n Burn app do? The Flex 'n Burn app allows users to view class locations, book fitness sessions, purchase passes, and manage their personal accounts. It provides access to their signature 30-minute CardioMuscular Workout™ classes. ### What kind of workouts does Flex 'n Burn offer? Flex 'n Burn specializes in a 30-minute CardioMuscular Workout™ that combines high-tech machines with science-based HIIT (high-intensity interval training) methods. This approach is designed to maximize workout results while minimizing time spent. ### Is the Flex 'n Burn app free to use? Yes, the Flex 'n Burn app is free to download and use. The app is supported by advertisements, which allows for free access to its features and class booking capabilities. ### Who is the target audience for Flex 'n Burn? This app is designed for individuals who are looking for highly efficient and effective workouts that fit into a busy schedule. It appeals to those interested in high-intensity interval training and convenient fitness management. ### How many calories can I burn with a Flex 'n Burn workout? According to the app's description, a single 30-minute Flex 'n Burn workout is designed to help you burn up to 950 calories. This is achieved through the combination of advanced machines and intense interval training techniques. ## Version history (last 5 releases) ### 3.66.1 — 2026-08-13 We're always working to improve your experience. This update includes bug fixes and general app maintenance. Stay tuned for future updates! ### 3.66.0 — 2026-08-11 We're always working to improve your experience. This update includes bug fixes and general app maintenance. Stay tuned for future updates! ### 3.65.0 — 2026-07-15 We're always working to improve your experience. This update includes bug fixes and general app maintenance. Stay tuned for future updates! ### 3.64.0 — 2026-06-17 We're always working to improve your experience. This update includes bug fixes and general app maintenance. Stay tuned for future updates! ### 3.63.0 — 2026-06-01 We're always working to improve your experience. This update includes bug fixes and general app maintenance. Stay tuned for future updates! ## Apps similar to Flex 'n Burn | App | Rating | Price | Category | | --- | --- | --- | --- | | [Get Sweat Studio](https://appshunter.io/ios/app/get-sweat-studio/id6740874911) | 5.0 (161) | Free | Health & Fitness | | [The Paseo Club App](https://appshunter.io/ios/app/the-paseo-club-app/id1476194207) | 2.6 (10) | Free | Health & Fitness | | [Afterburn Fitness App](https://appshunter.io/ios/app/afterburn-fitness-app/id1517119892) | 4.9 (128) | Free | Health & Fitness | | [Studio 7 Pilates](https://appshunter.io/ios/app/studio-7-pilates/id1641498794) | 5.0 (1) | Free | Health & Fitness | | [Infinity Medspa Rewards](https://appshunter.io/ios/app/infinity-medspa-rewards/id6741074036) | — | Free | Health & Fitness | | [FIT FIX.](https://appshunter.io/ios/app/fit-fix/id6618135478) | 5.0 (29) | Free | Health & Fitness | ## More apps by Mariana Tek Corporation - [Zenergy Studios](https://appshunter.io/ios/app/zenergy-studios/id1374370247) - [SculptHouse](https://appshunter.io/ios/app/sculpthouse/id1402803629) - [GritCycle](https://appshunter.io/ios/app/gritcycle/id1435930394) - [Vibe Ride Fitness](https://appshunter.io/ios/app/vibe-ride-fitness/id1439632070) - [VERVE Studios](https://appshunter.io/ios/app/verve-studios/id1441557339) All apps by Mariana Tek Corporation: https://appshunter.io/developer/1178746980 --- *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 2026-08-27.*