212+ iOS apps curated and reviewed
Whether you're new to o2 circuit training or looking for an upgrade, our curated collection of 212+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | No | May 2026 |
| 2 |  | Free | 4.7★ (3.2K) | No | Yes | Jul 2026 |
| 3 |  | Free | 4.7★ (17K) | Yes | Yes | Jul 2026 |
| 4 |  | Free | 4.9★ (21K) | Yes | Yes | Jul 2026 |
| 5 |  | $7.99 | 4.8★ (11K) | No | No | Jul 2026 |
| 6 |  | Free | 4.8★ (449) | No | Yes | Jul 2026 |
| 7 |  | Free | 4.7★ (13K) | No | Yes | Jul 2026 |
| 8 |  | Free | 4.6★ (2.2K) | No | Yes | Jul 2026 |
This app is a versatile interval timer designed for various training styles like Tabata and HIIT. It offers customizable workout parameters, voice guidance, and music ducking for an enhanced training experience. Save your custom workouts and track your progress.
This app provides AI-powered, personalized workout plans that adapt weekly to your fitness goals and available equipment. It offers structured training for general fitness, sport performance, and tactical readiness, with over 3,000 exercises and HD video demonstrations.
This app offers intelligent cycling and triathlon training plans that adapt to your performance, schedule, and goals. It provides daily workout recommendations, instant analysis, and over 3,000 structured workouts to help you become a faster cyclist.
This interval timer app is designed for high-intensity interval training (HIIT), Tabata, and circuit training workouts. It features a large, color-coded display, customizable interval names, and background operation. It also integrates with Apple Health to track your fitness data.
This app coaches your workouts with customizable timers, allowing you to focus on training. It supports location tracking for detailed statistics and heart rate monitoring with Bluetooth LE devices. Voice coaching and clear visual cues keep you informed without needing to check your screen.
This app offers a comprehensive platform for athletes and coaches to plan, track, and analyze training for endurance sports and strength building. It provides flexible scheduling, actionable insights, and integrated strength training to optimize performance and durability.
This app serves as a personal trainer, offering a variety of expertly designed workouts for home, gym, or cycling classes. It features a unique color-coded system for easy zone tracking and allows users to create, customize, and share workouts, while also syncing data with external fitness apps.
Engage in brief, personalized training sessions lasting only 3-5 minutes. Earn rewards, access job aids, and track your knowledge growth. Managers gain insights into team performance and can trigger targeted training.
This app provides structured indoor training for cyclists, adapting workouts to your strengths and goals. It offers a variety of motivating content, personalized recommendations, and integrates with your own gear for a comprehensive fitness experience.
Create custom workout timers with adjustable intervals for exercise and rest. Track your progress with detailed history and statistics, and repeat past workouts easily. Enjoy audio cues without interrupting your music.
Transform indoor cycling into immersive outdoor experiences. Connect to a smart trainer to simulate real-world terrain and track performance data. Enjoy virtual rides, challenges, and sync with other devices for comprehensive training.
Design, build, and test realistic electrical circuits on your mobile device. This app offers real-time simulations, guided tutorials, and a library of expert-created circuits for hands-on learning. Practice wiring safely and effectively for vocational training or self-study.
Track your indoor and outdoor cycling workouts with detailed metrics like distance, speed, and heart rate. Offers voice coaching, route planning, and social features. Supports various activities and integrates with popular health platforms and heart rate monitors.
This app allows users to validate NYC DOB TC Cards. It provides a quick and easy way to verify the authenticity of these important documents.
This app acts as a personal training partner for Concept2 equipment. It allows users to set up custom workouts, view real-time stats, track progress, and sync data with online platforms. It also offers workout of the day challenges and detailed post-workout analysis.
Generate personalized triathlon training plans that adapt to your lifestyle and goals. Sync workouts to your device, get insights from coaches, and track your progress for any race distance.
Design and simulate electronic and digital circuits in real-time. Visualize voltage and current flow, and analyze circuit behavior with tools like oscilloscopes and multimeters. Offers a user-friendly experience for circuit design and digital electronic analysis.
This app offers personalized, adaptive training plans for runners, cyclists, and triathletes. It uses AI to adjust workouts based on your goals, fitness level, and daily schedule, ensuring smarter training and better performance.
This app uses wearable data to provide personalized, readiness-based training for tactical athletes and serious lifters. It adapts workouts in real-time based on recovery, sleep, and activity metrics to optimize performance and prevent injury.