RunSolver
Pace, Splits & Race Tools
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
RunSolver is the runner's toolkit — built for calculating, not tracking.
Whether you're planning a race, dialing in your splits, or predicting a finish time, RunSolver gives you fast, focused tools that work together. Enter your distance and time once, and every screen updates — pace, splits, predictions, and workouts all stay in sync.
PACE CALCULATOR
Pick a distance or enter your own, set a finish time, and instantly see your pace, speed, and converted units. Clean, simple, no clutter.
SPLIT GENERATOR
Generate per-km or per-mile splits with even, negative, or positive split strategies. Visualize your pace curve and share a race card image with friends.
RACE PREDICTOR
Use the Riegel formula to predict finish times across distances — from the mile to 50K. Adjust for fitness level and see your age grade percentage.
WORKOUT BUILDER
Choose from smart templates (intervals, tempo, long run, speed work) with paces derived from your target race time. Or build a fully custom workout and save it for later.
TOOLS
- Pace conversion (min/km to min/mi and back)
- Training pace zones from your threshold
- Treadmill speed to outdoor pace
- Boston Qualifier calculator
- Race comparison (planned vs actual)
- Personal records tracker
DESIGNED FOR RUNNERS
- Dark theme, clean interface
- Wheel pickers for fast time entry
- km/mi toggle everywhere
- Shareable race plan cards
- All calculations happen instantly — no loading, no accounts, no tracking
RunSolver is 100% free with no ads. Run the numbers.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Save and switch between race targets
- Distance and time now persist between sessions
- Improved pace calculator with saved targets
The developer, PragmaTec, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- PragmaTec
- Size
- 6.3 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.6 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- Copyright
- © 2026 PragmaTec