200+ iOS apps curated and reviewed
Looking for free endurance calculators apps? 18 of our 200+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | $0.99 | — | No | No | Jul 2026 |
| 2 |  | Free | 4.9★ (44) | No | No | Jul 2026 |
| 3 |  | Free | 4.6★ (2.9K) | Yes | No | Jul 2026 |
| 4 |  | Free | 4.6★ (4.8K) | Yes | No | Aug 2026 |
| 5 |  | Free | 4.5★ (967) | No | Yes | Jul 2026 |
| 6 |  | Free | — | No | No | Jul 2026 |
| 7 |  | Free | 4.7★ (13K) | Yes | Yes | Aug 2026 |
| 8 |  | $9.99 | 4.9★ (5.3K) | No | No | Aug 2026 |
Follow athletes in real-time during endurance races with live tracking, course maps, and progress updates. Get participant times, paces, and places instantly, and receive push notifications for key milestones. Stay informed with event details and share your favorite moments.
Easily calculate the difference between two times or add/subtract durations. This utility app helps manage time calculations for various purposes.
This app offers a comprehensive suite of over 40 calculators and unit converters for various needs, including finance, health, construction, and everyday math. It features standard, scientific, and specialized calculators for tasks like loan amortization, currency conversion, and material estimation.
This app guides you through science-backed interval training for effective workouts at home or on the go. Choose from pre-made routines or create your own, with voice cues and visual feedback to keep you motivated. Track your progress and integrate with other health apps.
This app helps runners and coaches optimize training and race performance. It offers precise pace calculations, VO2max measurement, and detailed race and nutrition planning. Analyze routes, predict times, and track fitness development with a user-friendly interface.
This comprehensive calculator app offers a wide range of tools for everyday calculations, from basic arithmetic and scientific functions to unit and currency conversions. It includes specialized calculators for loans, health, fuel costs, GPA, and more, all within a clean and user-friendly interface.
This aviation calculator app offers 27 functions for navigation, fuel calculations, and conversions. It includes a versatile timer for tracking multiple time zones and performing countdowns with alerts. Designed for pilots, it simplifies complex flight planning and in-flight computations.
This app provides a comprehensive suite of medical calculators specifically for pediatric care. It offers tools for growth prediction, conversions, renal functions, pregnancy calculations, blood pressure, critical care, drug dosing, and more, designed for medical professionals and students.
Calculate your Aerobic Threshold heart rate to enhance endurance training. This app uses a heart rate drift test, integrating with Apple HealthKit to simplify the process. It guides you through a one-hour run to determine your optimal training zone.
This free scientific calculator offers essential features like RPN mode, unit conversions, and multiple undo/redo. It provides a taste of a more powerful version, with optional in-app purchases for expanded functionality.
This app is a powerful scientific calculator with graphing capabilities, a formula library, and a unit converter. It offers natural display input, advanced math functions for algebra, calculus, and statistics, and supports various number bases and formats.
This app guides you through personalized Zone 2 and high-intensity sprint training protocols to improve mitochondrial efficiency and maximize VO2 Max. It offers real-time feedback, projects future health outcomes, and tracks your progress towards longevity goals.
A free, classic calculator app with large, easy-to-press buttons and customizable skins. It supports basic arithmetic, memory functions, and can handle very large numbers without using scientific notation. Multitasking is also supported on compatible devices.
Personalized training plans for endurance athletes in triathlon, cycling, and running. Adapts to your schedule, progress, and goals, ensuring your training moves you forward for race day. Integrates with popular fitness devices.
This app helps runners train smarter by tracking progress, analyzing performance with insightful stats and visualizations, and managing training plans. It offers detailed breakdowns, journaling, and shoe mileage management, all with a privacy-first design.
This app provides a comprehensive suite of physics calculators, essential formulas, and detailed element information. It's designed to be a valuable resource for students and professionals in the field of physics.
This app accurately calculates time-related tasks, including working hours, durations between dates, and age. It offers a user-friendly interface with dark mode and offline functionality, allowing for easy time management for work and personal life.
This app offers a powerful calculator with hundreds of pre-built templates for finance, engineering, and more. Users can also create custom calculations for specific needs, ensuring accuracy and speed for repetitive tasks. Access your calculations across devices, online or offline.
This app provides data-driven insights for self-coached athletes to optimize performance and recovery. It offers a daily readiness score, tracks training load and progress, and analyzes workouts with advanced metrics. Designed for runners, cyclists, and swimmers who prioritize informed training.