TrackTimer: Acceleration Test
Car Acceleration & Drag Timer
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Meet the new TrackTimer: a redesigned dashboard, personal bests, run comparisons, notes, favorites and CSV export. Built for your next closed-course session.
TrackTimer helps you measure acceleration between speed thresholds on closed courses using your iPhone's GPS and motion sensors.
YOUR RUN JOURNAL
• Follow personal bests, median times and progress in Insights.
• Compare two runs using the same vehicle, speed range and sensor mode.
• Review time differences and available recorded GPS speed traces.
• Add notes and favorites; search and filter your saved runs.
• Export the current result selection as a CSV file. Exports omit location coordinates and vehicle plates.
MEASURE AND COMPARE
• Time 0–100 km/h runs.
• Compare GPS and sensor-fusion results side by side.
• See GPS signal quality and live speed readings.
• PRO unlocks 100–200 km/h and custom speed ranges.
KEEP YOUR RESULTS
Save measurement history, organize results by vehicle and review timing and available speed charts. Automatic saving and raw-speed recording can be managed in Settings. Charts require recorded speed data.
OPTIONAL SHARING
Sign in to share selected results on the public leaderboard. Review your vehicle photo and notes before sharing. Manage your account and account deletion in Settings.
PRO
Optional one-time in-app purchase. Current price and included features are shown before purchase. Restore purchases from the app using the Apple account used for purchase.
CLOSED COURSES ONLY
Set up and secure your phone before driving. Never interact with the device while driving. Use only on race tracks or private areas closed to traffic. Accuracy depends on device, GPS reception, mounting and measurement conditions. TrackTimer does not replace certified timing equipment.
Support: https://mostuned.com/tracktimer/support/
Privacy: https://mostuned.com/tracktimer/privacy/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Redesigned measurement dashboard with a clearer live-speed display.
• New Insights: personal bests, median times, progress charts and GPS-quality filters.
• Compare two runs for the same vehicle, speed range and sensor mode, with timing differences and recorded speed traces.
• Add notes and favorites to your run history. Search, filter and export results as CSV.
• Improved light and dark appearances and iPad layouts.
• TrackTimer is now provided by MOSTUNED LTD, with updated support and privacy pages.
You may need to sign in again after this update. Use Restore Purchases to restore an existing PRO purchase.
The developer, MOSTUNED LTD, 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 Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Location
- Contact Info
- User Content
- Identifiers
- Usage Data
- Other Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- MOSTUNED LTD
- Size
- 23.5 MB
- Category
- Sports
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later.
• iPad Air Wi‑Fi + Cellular
• iPad mini 2 Wi‑Fi + Cellular
• iPad Air 2 Wi‑Fi + Cellular
• iPad mini 3 Wi‑Fi + Cellular
• iPad mini 4 Wi‑Fi + Cellular
• iPad Pro (12.9‑inch) Wi-Fi + Cellular
• iPad Pro (9.7‑inch) Wi‑Fi + Cellular
• iPad (5th generation) Wi‑Fi + Cellular
• iPad Pro (12.9‑inch) (2nd generation) Wi‑Fi + Cellular
• iPad Pro (10.5‑inch) Wi‑Fi + Cellular
• iPad (6th generation) Wi‑Fi + Cellular
• iPad Pro (11‑inch) Wi‑Fi + Cellular
• iPad Pro (12.9‑inch) (3rd generation) Wi‑Fi + Cellular
• iPad mini (5th generation) Wi‑Fi + Cellular
• iPad Air (3rd generation) Wi‑Fi + Cellular
• iPad (7th generation) Wi‑Fi + Cellular
• iPad Pro (11‑inch) (2nd generation) Wi‑Fi + Cellular
• iPad Pro (12.9‑inch) (4th generation) Wi‑Fi + Cellular
• iPad Air (4th generation) Wi‑Fi + Cellular
• iPad (8th generation) Wi‑Fi + Cellular
• iPad Pro (11-inch) (3rd generation) Wi‑Fi + Cellular
• iPad Pro (12.9-inch) (5th generation) Wi-Fi + Cellular
• iPad mini (6th generation) Wi-Fi + Cellular
• iPad (9th generation) Wi-Fi + Cellular
• iPad Air (5th generation) Wi‑Fi + Cellular
• iPad (10th generation) Wi‑Fi + Cellular
• iPad Pro (11‑inch) (4th generation) Wi‑Fi + Cellular
• iPad Pro (12.9‑inch) (6th generation) Wi‑Fi + Cellular
• iPad Air 11-inch (M2) Wi-Fi + Cellular
• iPad Air 13-inch (M2) Wi-Fi + Cellular
• iPad Pro 11-inch (M4) Wi-Fi + Cellular
• iPad Pro 13-inch (M4) Wi-Fi + Cellular
• iPad mini (A17 Pro) Wi-Fi + Cellular
• iPad (A16) Wi-Fi + Cellular
• iPad Air 11-inch (M3) Wi-Fi + Cellular
• iPad Air 13-inch (M3) Wi-Fi + Cellular
• iPad Pro 11-inch (M5) Wi-Fi + Cellular
• iPad Pro 13-inch (M5) Wi-Fi + Cellular
• iPad Air 11-inch (M4) Wi-Fi + Cellular
• iPad Air 13-inch (M4) Wi-Fi + Cellular
• iPad mini (A20 Pro) Wi-Fi + Cellular - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
English and 2 more
- English, German, Turkish
- Age Rating
4+
- 4+
- Infrequent
Contests
Contains
User-Generated Content
- In-App Purchases
Yes
- TrackTimer Premium $49.99
- Copyright
- © 2026 MOSTUNED LTD