Devim GPS: 0-60 and Drag Timer
GPS + OBD Drag & Speedometer
Free · In‑App Purchases
Turn your iPhone and Apple Watch into a focused performance toolkit: time 0–60 mph, 0–100 km/h and quarter-mile runs, then review the data behind every result.
Devim GPS is an enthusiast-built GPS speedometer and performance timer for drivers who want to understand a run, not just save a number. Measure acceleration or distance with your iPhone, inspect the data behind the result, and compare runs with the context that matters.
No account or adapter is required to start.
MEASURE SPEED AND DISTANCE
• Time 0–60 mph, 0–100 km/h, 100–200 km/h, or any custom speed range.
• Measure 60 ft, 1/8 mile, 1/4 mile, 1/2 mile, 1 mile, or a custom distance.
• Automatic standing-start detection waits for confirmed movement.
• Use iPhone GPS on its own or connect a compatible BLE OBD-II adapter.
• Hear spoken speed-threshold announcements and follow live speed in metric or imperial units.
UNDERSTAND EVERY RUN
• Review speed graphs, splits, slope, altitude, G-force, route, and indicators that help you judge the result.
• See the timing method, sample rates, signal context, and other evidence behind the time.
• Organize results by vehicle and add photos and notes.
• Build a clean share card and decide whether to include the graph, speed splits, or location.
IPHONE AND APPLE WATCH
• The Apple Watch companion is included at no extra cost.
• Follow live speed, measurement state, distance progress, trip statistics, and recent results from your wrist.
• Away from the iPhone, Apple Watch GPS works as a standalone speedometer. Recording or saving a measurement requires the connected iPhone with Devim GPS open.
DEVIM GPS PRO
Devim GPS Pro is a one-time purchase. Its core Pro features remain unlocked: GPS + OBD analysis, multiple garage vehicles, side-by-side run comparison, measurement CSV export, and unlimited saved runs. Weather, wind, and other online Pro features are included for two years from the purchase date where services are available. OBD compatibility depends on the vehicle and adapter; a compatible BLE adapter using ELM327-style commands is required.
PRIVATE BY DEFAULT
No account is required. Saved runs stay on your device unless you choose to share or export them. Optional analytics is off by default.
GPS and OBD readings can vary with signal, device, vehicle, adapter, phone position, slope, and conditions. Devim GPS is not certified timing equipment. Configure the app while parked, secure the phone, and perform tests only in safe, legal, closed-course environments. Never operate the app while driving.
Version 2.1.0 brings the run closer to your wrist and makes the measurement flow more dependable from setup to save.
APPLE WATCH
• Follow live speed, ready, measuring, and completed states, distance progress, trip statistics, and recent results from your wrist.
• Switch between Speed, Distance, and Trip, adjust targets, and use trip controls on Apple Watch.
• Away from the iPhone, Watch GPS works as a standalone speedometer. Recording measurements still requires the connected iPhone with Devim GPS open.
MORE DEPENDABLE MEASUREMENTS
• Standing starts now filter stationary GPS and motion noise and wait for confirmed movement before timing begins.
• Completed runs are safeguarded as soon as they finish and can recover after an interruption or relaunch without creating duplicate records.
• Once a measurement is armed, its mode, target, data source, selected vehicle, and standing-start settings remain fixed until it ends.
SMARTER OBD SETUP
• Guided BLE OBD-II setup now includes live-speed verification, automatic reconnection, easier adapter management, clearer troubleshooting, and GPS fallback.
• Some Tesla vehicles can opt in, vehicle by vehicle, to experimental CAN speed input when standard vehicle-speed data is unavailable. Support varies by model; this beta remains untested on some vehicles.
SHARING AND CLARITY
• Choose whether result cards include the graph, speed splits, and location; Pro can optionally attach a measurements CSV.
• Clearer timing evidence shows the GPS/OBD method, sample and signal context, alignment, and result status without overstating small differences.
POLISH
• Added Keep Screen Awake and easier access to support, with improved error handling, accessibility, small-screen layouts, and localized text.
Set everything up while parked and keep the phone secured.
The developer, KEMAL UTKU LEKESIZ, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- KEMAL UTKU LEKESIZ
- Size
- 28.6 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.2 or later.
- iPhone
Requires iOS 17.2 or later. - Apple Watch
Requires watchOS 10.2 or later.
- iPhone
- Languages
English and 5 more
- English, German, Japanese, Portuguese, Spanish, Turkish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Devim GPS Pro $9.99
- Copyright
- © 2026 Kemal Utku Lekesiz
