PaceForge: Race Pace Planner
VDOT predictor, paces & plans
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Plan your race, predict your finish, and nail every training pace — works offline, no account. Built for runners who want fast, accurate answers.
PaceForge is your race-day brain. Turn any recent run into a complete game plan — predicted finish times, the exact training paces to hit, heart-rate zones, and a split-by-split pacing strategy — all computed on your device in seconds, with no account and no internet required.
Whether you're chasing your first 5K or a marathon PR, PaceForge gives you coach-grade answers without the subscription.
WHAT'S INSIDE
• Race Predictor — enter one result and see projected times for 5K, 10K, half, and marathon (Daniels' VDOT + Riegel models).
• Training Paces — your personal Easy, Marathon, Threshold, Interval and Repetition paces.
• Pace Calculator — instantly convert between pace, speed, time and distance.
• Heart-Rate Zones — five training zones from your age and resting HR (Karvonen, Tanaka).
• Race Plans — build an even or negative-split plan and get every kilometre/mile split for race day.
• Track Splits — lap-by-lap targets from 200 m to a mile.
• Treadmill Converter — turn an incline pace into its flat-road equivalent (Minetti grade-adjusted pace).
• Personal Records — keep your all-time bests and reuse them in every tool with one tap.
WHY RUNNERS LOVE IT
• Works offline — works on the start line, on a plane, anywhere. No signal needed.
• No account, no sign-up — your records and plans never leave your phone
• Science-based — Daniels' VDOT, Riegel, Karvonen and Minetti, not guesswork.
• Fast and focused — clean answers in seconds, no clutter.
• Kilometres or miles, light or dark, and 7 languages: English, Español, Français, Deutsch, Italiano, Português (BR), 日本語.
• Free to use, supported by ads.
Back up and restore your data anytime — it always stays yours.
Lace up. PaceForge does the math; you do the running.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
PaceForge stays free thanks to ads. This update adds ad support across the app — a banner above the tab bar, native cards below your lists, and occasional full-screen ads between screens. They're frequency-capped, never interrupt onboarding, and every one can be closed right away.
• Ad privacy controls in Settings (where regulation requires them).
• Under-the-hood updates and polish.
Your records, plans and settings stay on your device, exactly as before.
The developer, 郭 凌, 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:
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 郭 凌
- Size
- 28.2 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 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 and 6 more
- English, French, German, Italian, Japanese, Portuguese, Spanish
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026guoling