Comparison

Lean Angle vs Gauge King

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Lean Angle

This app uses your phone's gyroscope to measure motorcycle or bicycle lean angles in real time. It tracks cornering statistics, maximum lean, and ride routes with GPS, offering safety alerts for lean limits.

Highlights
  • Real-time lean angle gauge
  • High-frequency sampling
  • Corner-by-corner statistics
  • Maximum lean angle tracking
  • GPS ride logging with corner markers
  • Safety limit alerts
  • Mount position calibration
Features
Read full description

Lean Angle is a motorcycle lean angle meter and ride tracker: mount your phone, tap Calibrate, ride, and see your live bank angle, then tap Finish ride for a summary of every corner and your personal bests. ▶ Live lean gauge • Left and right lean in degrees on a big gauge that turns green, yellow and red at your caution and warning angles • Max left, max right and G-force tiles, plus GPS speed (km/h or mph) and ride time • A REC indicator shows when the zero is set and the ride is recording • Portrait or landscape, and the screen stays on while the gauge is open ▶ True Lean with GPS In a steady corner an accelerometer alone reads too little, because gravity and cornering force add up along the bike. True Lean combines the gyroscope with your GPS speed and turn rate so a held corner shows the lean you are really carrying. A badge tells you when GPS is helping and when it is still waiting for a fix. ▶ Max lean you can trust The lean is capped at 90°, moments when GPS says you are stopped do not count, and when you leave the app mid-ride the swing of taking the phone off the mount is left out of the saved ride. Your max lean is a number from the road, not from your pocket. ▶ Ride summary and personal bests Tap Finish ride and the summary shows max lean left and right, average and top speed, distance, ride time, number of curves and peak G. Max lean, distance and ride time tiles that beat your personal best get a NEW BEST mark, and the card can be shared as an image. • Corner list: every corner with its side, time, peak lean and speed, the three deepest highlighted • Personal bests in History: deepest left and right lean, longest ride, total distance (rides of 1 km or more) ▶ History • Your last 50 rides, each with a lean-over-time graph and a lean distribution chart • Export any ride as CSV; a statistics report CSV across all rides unlocks for 24 hours after a short ad • Rides are saved automatically when you leave the app after 30 seconds of riding ▶ Voice alerts Hear a spoken caution and warning when your lean passes the angles you set (20° to 60°), so you never have to look down at the phone. ▶ Set up once • Calibrate on the mount: portrait, landscape or flat • Invert left/right if your mount reads the wrong way • A first-ride card walks you through mount, Calibrate, ride and Finish ride ▶ Good to know Readings come from the phone's motion sensors, so mount the phone firmly and calibrate it with the bike upright. True Lean and speed need GPS. This is a reference tool for curious riders, not a riding aid: keep your eyes on the road and ride within the law. For sport and touring riders, track-day riders and anyone who wants to know how far they really lean.

About

Gauge King

Features
Read full description

Gauge King turns your iPhone into a clean, customisable digital gauge dashboard for your car. Connect a compatible Bluetooth OBDII reader and view live vehicle telemetry in a modern dashboard designed for drivers, enthusiasts, and anyone who wants a clearer view of what their car is doing. Build your own gauge layout, choose the data that matters to you, and monitor key information in real time. Gauge King can display supported vehicle data such as: RPM Speed Coolant temperature Intake air temperature Throttle position Engine load Battery voltage Fuel-related data as well as shift light layouts, calculated horsepower/Kw data and much more. Gauge King also includes Demo Mode, allowing you to experience the dashboard using simulated telemetry even when you are not connected to an OBDII reader. This is useful for trying layouts, testing gauges, previewing the app, or seeing how the dashboard feels before connecting to a vehicle. Features include: Customisable digital gauge dashboards Audible warnings based on configurable thresholds Apple CarPlay support Compatible Bluetooth OBDII reader support Live vehicle telemetry where supported by the vehicle and adapter Demo Mode with simulated data Performance-inspired gauge layouts Clear connection status Designed for car enthusiasts and everyday drivers Gauge King is built to make vehicle data easier to see, understand, and enjoy. Important notes: Gauge King requires a compatible Bluetooth OBDII reader for live vehicle telemetry. Available telemetry depends on your vehicle, OBDII adapter, and supported sensors. Demo Mode uses simulated data and does not show real vehicle information. Gauge King is intended for information and display purposes only. Always drive safely and follow local road rules. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/⁠

Screenshots

Lean Angle3 screens
Gauge King4 screens

Verdict

The call

The clearest difference is in-app purchases: Lean Angle at none against Gauge King's 1. Gauge King's advantage is ads (none vs shown) and update cadence (every 5 days vs every 10 days). On price, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Gauge King sells 1 in-app purchase, starting at $9.99 per year. Lean Angle asks for nothing beyond the download.

UpkeepUpdate frequency

Lean Angle ships an update every 10 days, Gauge King every 5 days. Both last shipped on October 24, 2026.

Scorecard3 real differences · 6 level
Lean Angle versus Gauge King: the parameters behind the verdict, then further details
ParameterLean AngleGauge King
PriceFreeFree
Rating3.0 (6 ratings) — better—
Number of ratings6 — better—
Update frequencyEvery 10 daysEvery 5 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhoneiPhone, iPad — better
Requires iOS16.4 — better17.2
Further details — not scored
Size61 MB8 MB
Age rating17+4+
DeveloperKyu-Hee JangMark Ross

In-app purchases

None

Lean Angle

No in-app purchases

1 purchases

Gauge King

Subscriptions1
  • Gauge King Premium7 Days trial$9.991 Year

Questions

Is Lean Angle free?
Lean Angle is free to download, with no in-app purchases.
Is Gauge King free?
Gauge King is free to download, with in-app purchases available.
Do Lean Angle or Gauge King have ads?
Lean Angle shows ads; Gauge King does not.
Which is updated more often, Lean Angle or Gauge King?
Lean Angle ships an update every 10 days, and Gauge King every 5 days. Most recently, Lean Angle was updated on October 24, 2026 and Gauge King on October 24, 2026.

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