Simple Workout Timer is a lifestyle app designed for iPhone users, developed by INTERSECT KK. This free app falls under the Health & Fitness category and serves as a versatile workout companion. The main feature of this program is its customizable workout timer, allowing users to tailor their exercise routines to their specific needs. Additionally, the app offers notifications to keep users on track, records Active Energy and workout data to Apple Health, and provides a convenient history viewing feature.

Users can calculate their Active Energy expenditure using the provided formula based on METs, weight, and exercise duration. The app also offers optional permission requests for Apple Health integration, personalized ads delivery through tracking, and notifications for timely reminders. Simple Workout Timer supports both Japanese and English languages for a wider user base.