Flintwork
Interval Workout Timer
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Preset or custom interval routines, a 20-move exercise library, and a workout history log.
Flintwork is a simple, free interval workout timer for bodyweight training — no gym equipment, no account, no subscription.
ROUTINES
Start with five ready-made routines (Full Body HIIT, Quick Core, Beginner Cardio, Tabata Classic, Stretch & Cooldown) or build your own from the exercise library, setting custom work and rest times for each move.
LIBRARY
Twenty bodyweight exercises across warmup, strength, cardio, and cooldown categories, each with a short instruction so you always know what's next.
RUN
A clear full-screen timer shows the current exercise, round progress, and remaining time, with pause, skip, and stop controls.
HISTORY
Every completed workout is logged locally, with your current streak and total session count.
Flintwork has no account, no server, and no in-app purchases. Everything is stored on your device, and the app is supported by ads.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
The developer, jeongeun lee, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
- Diagnostics
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Size
- 33.7 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Advertising
Health or Wellness Topics
- Provider
jeongeun lee
- jeongeun lee has not identified itself as a trader for this app. If you are a consumer in the European Economic Area, consumer rights do not apply to agreements between you and the provider.
- Copyright
- © 2026 Jeongeun Lee