Zef2.8.7
Publisher Description
Zef - Ride. Track. Connect.
Zef is a multi-sport tracking app built for riders, with a strong focus on nautical sports.
Track your sessions, analyze your performance, discover spots, and see your friends live - all in one app.
Key Features
Track your rides
Record your sessions with your iPhone or Apple Watch.
Zef integrates with the Health app and supports GPX imports from most watches.
Advanced performance analytics
Get detailed session stats including speed, distance, duration, speed polar, and health data.
Sessions can be replayed to analyze each maneuver.
Jump analysis
Measure jump height using only your iPhone or Apple Watch.
Powered by algorithms inspired by drone technology.
Races & challenges
Create private or public races for training or competition.
Visual guidance and wind angles are displayed directly on your iPhone or Apple Watch.
Spots & live activity
Discover spots around you and see when riders are active.
Follow spots and get notified when sessions start.
Friends & live tracking
Follow riders by username and get notified when friends go live.
Watch their sessions live on the map and stay connected.
Supported Sports
Sailing, Windsurfing, Kitesurfing, Wingfoil, Kitefoil, Windfoil, SUP Foil, Surfing, Wakeboard,
Kayaking, Paddling, Snowkiting, Landkiting, Cross-country skiing, Skating,
Bike, Electric Bike, Parawingfoil, and more with custom tags.
Apple Ecosystem
. iPhone & Apple Watch support
. Health app integration
. Optimized for the Apple ecosystem
Important
Sessions must be recorded from the ground to be validated.
Legal
Terms of Service
https://zef.watch/terms-and-conditions.html
Privacy Policy
https://zef.watch/privacy-and-security-policy.html
Version History bug fix 2.8.7 Aug 27 - fix pump detection
- improve jump algo
– fix session state calculation 2.8.6 Jun 29 IOS 26 support & fix 2.8.5 Jan 10 Bug fix on gps filtering 2.8.2 05/27/2025 improve gps acquisition &bug fix 2.8.1 05/12/2025 Efoil & Parawing foil 2.8.0 04/14/2025 Improve pumping acquisition
add tick every minutes 2.7.6 02/19/2025 Bug fix 2.7.5 02/01/2025 improve & fix 2.7.4 01/30/2025 bug fix on watchos 2.7.3 01/29/2025 fix gps acquisition 2.7.2 01/27/2025 Bug fix & improvments 2.7.1 11/26/2024 * segment bpm
* pumping improvement
* turn detection 2.7.0 11/24/2024 bug fix 2.6.8 04/27/2024 bug fix 2.6.7 04/15/2024 Improve pump segment detection 2.6.6 04/14/2024 Improve GPS & Pumping segment calculation 2.6.5 03/25/2024 bug fix 2.6.4 03/10/2024 Improve gps accuracy 2.6.3 02/27/2024 Improve gps acquisition 2.6.2 02/25/2024 * Friends Mode
* Exclude segment improved
* Fix 2.6.1 02/22/2024 * Improve session transfer
* UI Fix
* Fix exclude last point
* Remove ranking speed for pumping
* Improve speed precision
* Apple Watch ultra action button 2.6.0 12/06/2023 Improve sail recording view 2.5.3 10/08/2023 bug fix 2.5.2 10/02/2023 Fix & Improvements 2.5.1 09/01/2023
About Zef
The company that develops Zef is David Kieffer. The latest version released by its developer is 2.8.7.
To install Zef on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-13 and was downloaded 1 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Zef as malware if the download link is broken.
How to install Zef on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Zef is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Zef is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 2.8.7
posted on 2026-10-13
Version History bug fix 2.8.7 Aug 27 - fix pump detection
- improve jump algo
– fix session state calculation 2.8.6 Jun 29 IOS 26 support & fix 2.8.5 Jan 10 Bug fix on gps filtering 2.8.2 05/27/2025 improve gps acquisition &bug fix 2.8.1 05/12/2025 Efoil & Parawing foil 2.8.0 04/14/2025 Improve pumping acquisition
add tick every minutes 2.7.6 02/19/2025 Bug fix 2.7.5 02/01/2025 improve & fix 2.7.4 01/30/2025 bug fix on watchos 2.7.3 01/29/2025 fix gps acquisition 2.7.2 01/27/2025 Bug fix & improvments 2.7.1 11/26/2024 * segment bpm
* pumping improvement
* turn detection 2.7.0 11/24/2024 bug fix 2.6.8 04/27/2024 bug fix 2.6.7 04/15/2024 Improve pump segment detection 2.6.6 04/14/2024 Improve GPS & Pumping segment calculation 2.6.5 03/25/2024 bug fix 2.6.4 03/10/2024 Improve gps accuracy 2.6.3 02/27/2024 Improve gps acquisition 2.6.2 02/25/2024 * Friends Mode
* Exclude segment improved
* Fix 2.6.1 02/22/2024 * Improve session transfer
* UI Fix
* Fix exclude last point
* Remove ranking speed for pumping
* Improve speed precision
* Apple Watch ultra action button 2.6.0 12/06/2023 Improve sail recording view 2.5.3 10/08/2023 bug fix 2.5.2 10/02/2023 Fix & Improvements 2.5.1 09/01/2023
version 2.8.6
posted on 2026-08-22
Version History - fix pump detection
- improve jump algo
– fix session state calculation 2.8.6 Jun 29 IOS 26 support & fix 2.8.5 Jan 10 Bug fix on gps filtering 2.8.2 05/27/2025 improve gps acquisition &bug fix 2.8.1 05/12/2025 Efoil & Parawing foil 2.8.0 04/14/2025 Improve pumping acquisition
add tick every minutes 2.7.6 02/19/2025 Bug fix 2.7.5 02/01/2025 improve & fix 2.7.4 01/30/2025 bug fix on watchos 2.7.3 01/29/2025 fix gps acquisition 2.7.2 01/27/2025 Bug fix & improvments 2.7.1 11/26/2024 * segment bpm
* pumping improvement
* turn detection 2.7.0 11/24/2024 bug fix 2.6.8 04/27/2024 bug fix 2.6.7 04/15/2024 Improve pump segment detection 2.6.6 04/14/2024 Improve GPS & Pumping segment calculation 2.6.5 03/25/2024 bug fix 2.6.4 03/10/2024 Improve gps accuracy 2.6.3 02/27/2024 Improve gps acquisition 2.6.2 02/25/2024 * Friends Mode
* Exclude segment improved
* Fix 2.6.1 02/22/2024 * Improve session transfer
* UI Fix
* Fix exclude last point
* Remove ranking speed for pumping
* Improve speed precision
* Apple Watch ultra action button 2.6.0 12/06/2023 Improve sail recording view 2.5.3 10/08/2023 bug fix 2.5.2 10/02/2023 Fix & Improvements 2.5.1 09/01/2023 Improve pumping algo 2.5 08/29/2023
version 2.8.6
posted on 2026-06-30
Version History - fix pump detection
- improve jump algo
– fix session state calculation 2.8.6 9h ago IOS 26 support & fix 2.8.5 Jan 10 Bug fix on gps filtering 2.8.2 05/27/2025 improve gps acquisition &bug fix 2.8.1 05/12/2025 Efoil & Parawing foil 2.8.0 04/14/2025 Improve pumping acquisition
add tick every minutes 2.7.6 02/19/2025 Bug fix 2.7.5 02/01/2025 improve & fix 2.7.4 01/30/2025 bug fix on watchos 2.7.3 01/29/2025 fix gps acquisition 2.7.2 01/27/2025 Bug fix & improvments 2.7.1 11/26/2024 * segment bpm
* pumping improvement
* turn detection 2.7.0 11/24/2024 bug fix 2.6.8 04/27/2024 bug fix 2.6.7 04/15/2024 Improve pump segment detection 2.6.6 04/14/2024 Improve GPS & Pumping segment calculation 2.6.5 03/25/2024 bug fix 2.6.4 03/10/2024 Improve gps accuracy 2.6.3 02/27/2024 Improve gps acquisition 2.6.2 02/25/2024 * Friends Mode
* Exclude segment improved
* Fix 2.6.1 02/22/2024 * Improve session transfer
* UI Fix
* Fix exclude last point
* Remove ranking speed for pumping
* Improve speed precision
* Apple Watch ultra action button 2.6.0 12/06/2023 Improve sail recording view 2.5.3 10/08/2023 bug fix 2.5.2 10/02/2023 Fix & Improvements 2.5.1 09/01/2023 Improve pumping algo 2.5 08/29/2023
version 2.8.5
posted on 2026-06-03
Version History IOS 26 support & fix 2.8.5 Jan 10 Bug fix on gps filtering 2.8.2 05/27/2025 improve gps acquisition &bug fix 2.8.1 05/12/2025 Efoil & Parawing foil 2.8.0 04/14/2025 Improve pumping acquisition
add tick every minutes 2.7.6 02/19/2025 Bug fix 2.7.5 02/01/2025 improve & fix 2.7.4 01/30/2025 bug fix on watchos 2.7.3 01/29/2025 fix gps acquisition 2.7.2 01/27/2025 Bug fix & improvments 2.7.1 11/26/2024 * segment bpm
* pumping improvement
* turn detection 2.7.0 11/24/2024 bug fix 2.6.8 04/27/2024 bug fix 2.6.7 04/15/2024 Improve pump segment detection 2.6.6 04/14/2024 Improve GPS & Pumping segment calculation 2.6.5 03/25/2024 bug fix 2.6.4 03/10/2024 Improve gps accuracy 2.6.3 02/27/2024 Improve gps acquisition 2.6.2 02/25/2024 * Friends Mode
* Exclude segment improved
* Fix 2.6.1 02/22/2024 * Improve session transfer
* UI Fix
* Fix exclude last point
* Remove ranking speed for pumping
* Improve speed precision
* Apple Watch ultra action button 2.6.0 12/06/2023 Improve sail recording view 2.5.3 10/08/2023 bug fix 2.5.2 10/02/2023 Fix & Improvements 2.5.1 09/01/2023 Improve pumping algo 2.5 08/29/2023 fix changing sessions sport 2.4.9 08/03/2023
version 2.8.5
posted on 2026-01-10
IOS 26 support & fix
version 2.8.4
posted on 2025-09-03
Sep 3, 2025
Version 2.8.4
buf fix
version 2.7.0
posted on 2024-11-25
Nov 25, 2024
Version 2.7.0
* segment bpm
* pumping improvement
* turn detection
version 2.6.6
posted on 2024-04-15
Apr 15, 2024
Version 2.6.6
bug fix
version 2.6.1
posted on 2024-02-22
Feb 22, 2024
Version 2.6.1
* Friends Mode
* Exclude segment improved
* Fix
version 2.6.0
posted on 2023-12-07
Dec 7, 2023
Version 2.6.0
* Improve session transfer
* UI Fix
* Fix exclude last point
* Remove ranking speed for pumping
* Improve speed precision
