--- title: "Stark Bag — App Overview" url: https://marlvel.ai/apps/stark-bag category: Health & Fitness developer: Postra AB platforms: ios rating: 4.8 (50 ratings) pricing: paid report_level: overview generated: 2026-04-23 last_verified: "2026-04-23T19:40:44.495Z" --- > **Key Insight:** Stark Bag is a niche fitness tool that combines instructional video content with structured interval training and performance tracking. | Metric | Value | |--------|-------| | Category | Health & Fitness | | Rating | 4.8 ★ (50) | | Pricing | paid | | Platforms | iOS | | Latest Version (iOS) | 2.5.13 | | Developer | Postra AB | ## What is Stark Bag? Stark Bag is a fitness application by Postra AB designed for strength and cardiovascular training using a crescent-shaped exercise bag. The app provides 27 HD video-guided exercises, customizable workout routines, and integrated timers for Tabata, HIIT, and circuit training. ## Key Features - **HD Video Instruction**: Features 27 exercises demonstrated by a professional instructor in high-definition video. - **Customizable Workout Timers**: Includes built-in timers supporting Tabata, HIIT, and circuit training formats. - **Apple Health Integration**: Syncs performed workouts and calorie burn data directly with the Apple Health app. - **Gamification and Tracking**: Allows users to track scores and earn rewards for completing challenges. ## Who is it for? Individuals seeking guided strength and plyometric training using specialized bag equipment. ## Links - [App Store](https://apps.apple.com/us/app/stark-bag/id887426211?uo=4) - [Full Intelligence Report](https://marlvel.ai/apps/stark-bag) --- *This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/stark-bag).* *Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*