NEWS
NEW 🆕 Meet MotionRecord: the tracking app that records your ride at 100 Hz — and makes Kurvenfokus even more precise → 🎉 Kurvenfokus is now available on iOS & Android — TestFlight for iPhone, Google Play Store for Android. Try it free! → NEW 🤖 Android v0.0.19 in open testing — now in English, with backups you can take with you → NEW 📱 iOS v1.0.0 (Build 44) on TestFlight — pick your appearance, run the app in German or English, no more phantom kilometers → NEW 🆕 Meet MotionRecord: the tracking app that records your ride at 100 Hz — and makes Kurvenfokus even more precise → 🎉 Kurvenfokus is now available on iOS & Android — TestFlight for iPhone, Google Play Store for Android. Try it free! → NEW 🤖 Android v0.0.19 in open testing — now in English, with backups you can take with you → NEW 📱 iOS v1.0.0 (Build 44) on TestFlight — pick your appearance, run the app in German or English, no more phantom kilometers →
SENSOR RECORDING

Your smartphone.
6 sensors.
100 readings per second.

MotionRecord turns your smartphone into a high-frequency telemetry system. Accelerometer, gyroscope, barometer, GPS — the motion sensors at up to 100 Hz. No accessories, no subscription, no account.

Explore sensors → MotionRecord Official website ↗ ← Kurvenfokus
REC
01:42:37
Accel X
-0.34 g
Gyro Z
12.7 °/s
Speed
87 km/h
Baro
982 hPa
Roll
28.4 °
Heading
247 °
612.847 Samples 100 Hz ●
The problem

GPS alone tells only half the story

Your navigation app records WHERE you rode. Once per second. A position on the map.

But what happens between those seconds? The 2 G under braking before the hairpin. The 35° lean angle at the apex. The moment you roll on the throttle at corner exit.

All of that is in your smartphone — in sensors that no navigation app uses.

MotionRecord changes that.

Sensors

6 sensors. One dataset. Your ride.

Sensor
What it measures
Freq.
Why it matters
Accelerometer
Acceleration on 3 axes
100 Hz
G-forces under braking, acceleration, and in corners
Gyroscope
Rotation rate on 3 axes
100 Hz
Rotation through the corner — a building block of the lean-angle computation
GPS
Position + speed
~1 Hz
Distance, speed, route
Barometer
Air pressure
~1–5 Hz
Fine-grained elevation profile, independent of GPS reception
Magnetometer
Compass direction
100 Hz
Heading without GPS drift
Rotation Vector
Quaternion + Euler angles
100 Hz
Exact phone orientation in 3D space
In one hour of riding: 360,000+ data points
Comparison

What the GPS track alone doesn't show

GPS only
With MotionRecord
Lean angle
Computed from 1 Hz GPS course
Computed — with raw IMU data to verify
Sampling rate
1 Hz — once/second
100 Hz — 100×/second
G-forces
Not available
Braking, acceleration, cornering
Elevation profile
GPS elevation, jumpy
Barometric, finely resolved
In tunnels
Signal gone = data gap
IMU keeps recording
Hardware
None
Phone mount (~€15)
GPS tells you WHERE you were. MotionRecord tells you HOW you rode there.
Integration

Two apps. One pipeline. The perfect result.

MotionRecord records. Kurvenfokus analyzes. Unbeatable together.

MotionRecord

Record. Put your phone in the mount, hit Record, and ride.

Kurvenfokus

Import. Drag the ZIP export from MotionRecord straight into Kurvenfokus.

Corner analysis

Analyze. Lean angle and corner statistics, computed from your recorded data.

MotionRecord

RECORD

Turns your smartphone into a telemetry system. Every sensor, maximum frequency, minimum effort.

  • 100 Hz sensor recording
  • 6 sensors at once
  • Background operation
  • ZIP export for Kurvenfokus

Kurvenfokus

UNDERSTAND

Analyzes your corners. With MotionRecord data: a dense sensor recording of the whole ride instead of just a 1 Hz GPS track.

  • MotionRecord import
  • Corner-by-corner analysis
  • Left/right comparison
  • Ride comparison
One app to record. One app to understand. Unbeatable together.
Profile

One tap. The right profile. Let's go.

Motorcycle

100 Hz

Optimized for lean angle, cornering dynamics, and vibration filtering. Your main profile.

Car / Kart

50 Hz

Less vibration, different dynamics. Perfect for track days or kart analysis.

Cycling

25 Hz

Lighter dynamics, longer battery life. For road bikes and MTBs.

New in v1.0

More sensors. More control.

Apple Watch sensors

Record heart rate, GPS, and barometer straight from your Apple Watch — alongside phone sensors.

Heart rate (BPM)
Watch GPS
Watch barometer
Sensor toggles: disable each separately

CSV-Export

Export all sensor data as a ZIP bundle with CSV files — ready to analyze in Excel, Python, or MATLAB.

ZIP with every sensor CSV
Compatible with Excel, Python, MATLAB
Your data, your format
No proprietary format

Hz configurator

Choose your recording frequency: 10 Hz for long rides, 50 Hz for everyday use, 100 Hz for maximum precision.

10 Hz
Battery saver
50 Hz
Standard
100 Hz
Maximum

Crash recovery

Your recording survives app crashes and storage problems. Automatic recovery at next launch.

Crash-safe chunk storage
Disk-space check before recording
Automatic recovery
No data loss
Privacy

Your sensor data. Your device.
No exceptions.

Sensor data is personal. It reveals where you ride, how you ride, when you brake. That's why it never leaves your phone.

MotionRecord has no server. No account. No ad trackers. The app works completely offline — from first launch to last export.

If you want to share your data, you export it yourself. If not, it stays with you.

Changelog

MotionRecord version history

MotionRecord releases only. Find the Kurvenfokus changelog at /changelog.

iOS v1.0 Build 17 06.04.2026
New features
● Standard mode — GPS+Motion vs. developer mode (everything)
● Welcome screen — Dark theme, cyan accents, polished onboarding
● In-app changelog — Build-based trigger, automatic display
● Lean limits ±60° — Consistent limits across platforms
iOS v1.0 Build 15–16 26.03.2026
New features
● Crash recovery — Recording survives app crashes + disk-space check
● CSV export — ZIP bundle with all sensor data for Excel/Python
● Apple Watch sensors — Heart rate, GPS, barometer from the watch
● Sensor toggles — Disable HR/GPS/barometer individually
Android v0.0.5/0.0.6 Build 8 06.04.2026
New features
● Corner Focus mode — 50 Hz IMU with auto-export
● Hz configurator — Choose 10/50/100 Hz
● Storage estimate — Estimated storage use during recording
● Summary dialog — Summary + one-tap share to Kurvenfokus
FAQ

Frequently asked questions

Just a phone mount for your handlebars (from around €15). No Bluetooth sensor, no OBD dongle, no subscription.
For hours. Chunk-based storage keeps RAM use constant. The limiting factor is storage space (around 1 GB per hour).
No. MotionRecord runs in the background as a foreground service. Screen off, phone in the mount, forget about it.
Yes. Export it as standard JSON — ready to analyze in Python, Excel, MATLAB, or any other tool. Your data, your format.
Yes. It has a dedicated 50 Hz car profile. Perfect for track days, karts, or drivers who want to analyze their braking points.
Lean angle is computed from GPS course and speed; on Android the gyroscope additionally smooths the value. We will only quote an accuracy figure after a proper reference measurement — until then, the app gives you all the raw data to check the numbers yourself.
Similar to a navigation app using GPS. For long rides, we recommend USB charging from the motorcycle — most mounts have this built in.

Find all details, changelogs, and technical docs at motionrecord.de ↗

Available now

Your phone has 6 sensors.
Use them.

MotionRecord is here — free on the Play Store and as a TestFlight beta for iOS. Offline, no account.

Laden im App Store Jetzt bei Google Play
← Explore Kurvenfokus