Runfa.st is made and published by Jan Zarcky. AppBrain is an independent app data site and isn't affiliated with Jan Zarcky. The app name, icon, screenshots and description belong to Jan Zarcky and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- September 28, 2026
- Size
- 19.7 MB
User feedback
Ratings and reviews on the App StoreComments on Runfa.st for iOS
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Store listing
By Jan Zarcky, from the App StoreDescription by Jan Zarcky Written by the developer, not by AppBrain. Click to read.
Stop relying on generic, static training plans that don't adapt to your fitness level. Runfa.st analyzes your real training history to build dynamic weekly plans and give you actionable, specific advice tailored to your exact goals.
Whether you’re chasing your first 5K, aiming for a sub-1:30 half marathon, or hunting down a marathon PB, Runfa.st replaces the guesswork with data-driven guidance so you can improve with purpose.
Key Features:
• Dynamic Weekly Plans: Get a tailored day-by-day schedule featuring easy runs, intervals, tempo efforts, and long runs—each with the exact target paces you need to hit your goal.
• Hyper-Personalized AI Coach: Chat with an AI that knows your actual running stats. Ask how to adjust your pace, what you're missing in your training, or why a run felt hard—and get highly specific, data-backed answers.
• Seamless Apple Health Sync: Instantly import your Apple Fitness workouts (including Strava runs synced to Apple Health) so your coach and plans are always up to date.
• Race Targeting: Set your event date, distance, and goal time. See exactly how many days are left and track your average paces to ensure you're on track for race day.
• Target-Specific Threads: Training for multiple races? Keep your coaching chats organized by specific targets so the context never gets lost.
• Minimalist, Distraction-Free Design: A beautifully bold, dark-mode interface built to keep you focused on what matters—your training, your progress, and your next run.
Runfa.st requires an active subscription to access all features including AI coaching, personalised weekly training plans, race target tracking, run imports, and stats analysis. Subscription plans are available on a weekly or monthly basis. Payment is charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless cancelled at least 24 hours before the end of the current period. AI coaching includes a monthly usage allowance that resets automatically. No additional purchases are available or required.
Terms of Use: https://www.tapable.app/runfast/terms
Privacy Policy: https://www.tapable.app/runfast/privacy
Safety and technology
Found in the app by AppBrain- Price
- Free
- App size
- 19.7 MB
- Content rating
- Low
Technologies used by Runfa.st
Releases
Updates seen on the App Store- Version
- 1.0.39
- Launched
- March 2026
No changelog data
Alternatives
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Rankings
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About the app and developer
About Runfa.st
Runfa.st is a health & fitness app developed by Jan Zarcky.
What is the rating of Runfa.st?
Runfa.st has no ratings yet.
Is Runfa.st free?
Runfa.st is free. The app size is 19.67 MB. The latest version available is 1.0.39. The last update was on September 28, 2026.
What are the requirements for Runfa.st?
The app has a content rating of Low Maturity. The app has been available on the App Store since March 2026.
Developer information for Jan Zarcky
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Frequently asked questions about Runfa.st
Is Runfa.st free?
Yes. Runfa.st is free on the App Store.
Is Runfa.st still available?
Yes. Runfa.st is on the App Store, and the last update we saw was on September 28, 2026.
How large is Runfa.st?
Runfa.st is 19.67 MB.
Is Runfa.st suitable for children?
App Store gives Runfa.st a low maturity rating, so it is meant for older children and up.
Who made Runfa.st?
Runfa.st was developed by Jan Zarcky. It is listed in the health & fitness category on the App Store.
What are the best alternatives to Runfa.st?
People looking at Runfa.st also look at these health & fitness apps: Mufo, NutriAi: Smart Calorie Counter, ACS CARES, San Antonio Marathon, Quit Vaping & Smoking - NoPuff.