CTS ActivityLab
CTS Media Group LLC Health & Fitness iPhoneiPadiPod touchMac
CTS ActivityLab is a free Health & Fitness app for iPhone and iPad by CTS Media Group LLC. Rated 5.0/5 from 1 ratings. Requires iOS 17.0.
- Rating
- 5.0
- 1 ratings
- Price
- Free
- on the App Store
- Size
- 9 MB
- Age 4+
- Updated
- Oct 9
- 2026 · v1.17
Screenshots
About CTS ActivityLab
ActivityLab is designed for athletes who want to understand their fitness data beyond the basic metrics shown by their watch and to compare multiple devices side by side. Import GPX, FIT, and TCX files from Garmin, COROS, Apple Watch, Suunto, Polar, Amazfit, Wahoo, and many other devices to explore detailed performance data. With ActivityLab you can: • Compare multiple activities side-by-side • Import activities directly from Apple Health (IOS Only) • Analyze GPS accuracy and track quality • Inspect elevation and altitude data • Review heart rate, pace, cadence, power, battery usage, and other sensor metrics • Visualize routes and activity statistics with powerful charts • Discover insights that aren't available in your watch's companion app • Compare device accuracy side-by-side with ActivityLabs custom agreement algorithm • Save and Sync comparisons across multiple devices (iPhone, iPad, and Mac!) Whether you're testing new GPS watches, training for your next race, or simply curious about your data, ActivityLab gives you professional-grade analysis tools in an easy-to-use interface. CTS ActivityLab is free for importing, viewing, analyzing, and sharing one activity at a time. An optional ActivityLab Pro auto-renewing subscription is required to compare multiple activities, view agreement statistics, and save or sync comparisons with iCloud. Eligible new subscribers receive a 7-day free trial, followed by the localized monthly App Store price. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
What’s new
Version 1.17 · Updated October 9, 2026
-Optimizations for performance improvements -Updated Apple Health integration with disclaimer of what information can be imported -Added Pace as a metric for comparison
App privacy
The developer, CTS Media Group LLC, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to CTS ActivityLab
Looking for apps like CTS ActivityLab? Here are 6 similar apps on the App Store. The highest rated is IRL Health Bar (5.0/5), and all 6 are free to download.
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IRL Health Bar
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Pace by Athlytic
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The Outsiders Fitness Tracker
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Intervals.icu Companion
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| CTS ActivityLab | 5.0 / 5 (1 rating) | Free | October 9, 2026 | |
| IRL Health Bar | 5.0 / 5 (33) | Free | Sep 22, 2026 | Compare |
| WristTopo: Maps for Watch | 4.8 / 5 (88) | Free | Oct 23, 2026 | Compare |
| Pace by Athlytic | 4.5 / 5 (76) | Free | Oct 19, 2026 | Compare |
| Health Sync by appyhapps | 4.3 / 5 (119) | Free | Oct 7, 2026 | Compare |
| The Outsiders Fitness Tracker | 4.6 / 5 (131) | Free | Oct 23, 2026 | Compare |
| Intervals.icu Companion | 4.9 / 5 (37) | Free | Oct 21, 2026 | Compare |
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