227+ iOS apps & games curated and reviewed
The best moto gear ratio calculator rpm apps and games on iPhone average 4.2★ across 227+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | $1.99 | 1.0★ (1) | No | No | Aug 2026 |
| 2 |  | Free | 4.6★ (13K) | Yes | Yes | Aug 2026 |
| 3 |  | Free | 4.7★ (12K) | Yes | Yes | Aug 2026 |
| 4 |  | Free | 4.7★ (125K) | Yes | Yes | Aug 2026 |
| 5 |  | Free | 4.8★ (64K) | No | No | Aug 2026 |
| 6 |  | Free | 4.6★ (971) | No | Yes | Aug 2026 |
| 7 |  | Free | 4.7★ (13K) | No | Yes | Aug 2026 |
| 8 |  | $0.99 | 3.8★ (120) | No | No | Aug 2026 |
Calculate motorcycle speed at any RPM, visualize shift points, and compare sprocket combinations. This tool helps riders and mechanics optimize gearing with interactive gauges and detailed reports.
Easily convert between various units of measurement, including currencies, temperature, length, and weight. This intuitive tool provides real-time currency exchange rates and a comprehensive list of conversions for everyday use.
This app is a powerful scientific calculator with graphing capabilities, a formula library, and a unit converter. It offers natural display input, advanced math functions for algebra, calculus, and statistics, and supports various number bases and formats.
This app uses your phone's GPS to display your current speed accurately. It supports multiple units, shows traveled distance, and offers optional city names and a compass. You can also record trip statistics like maximum speed and distance.
This app functions as a sophisticated speedometer, alerting you to speed limit violations with visual and auditory cues. It also provides location sharing, altitude readings, and a GPS black box for trip data. Calculate mileage, costs, and fuel consumption for your journeys.
Plan, navigate, and record motorcycle rides with a focus on scenic, winding routes. Discover routes ridden by other bikers, add points of interest, and utilize offline maps. Premium features include worldwide offline maps, speed limits, and advanced ride analysis.
Track your speed, distance, and altitude with precision. Features include real-time GPS tracking, trip recording, and a heads-up display for safer driving. Advanced options offer speed limit alerts and picture-in-picture mode.
This app is a powerful tool for RC car enthusiasts to calculate maximum speed and optimize gearing. It allows users to save setups, add notes, and email records for detailed tracking of performance. Supports a wide range of LiPo batteries and provides multiple calculation metrics.
This tool measures the rotational speed of motors, ideal for hobbyists working with drivable model cars. It features noise removal, speed conversion, and a memo panel for recording measurements. Customizable skins add a personal touch to the user experience.
This application displays your current speed in miles per hour, kilometers per hour, or knots. It features a large, clear display with Retina support for optimal visibility. Accuracy is enhanced by adjusting indicator transparency.
Measure rotational speed using your phone's camera or a simulated strobe light. Simply mark the rotating object and adjust the settings until it appears stationary to get an accurate RPM reading. The app also functions as a torchlight.
This app combines a speedometer and trip computer to automatically track your speed, distance, and time. It offers real-time trip statistics, automatic stop detection, and a head-up display for easy viewing. A built-in map helps you navigate and track your location.
This app simplifies the process of mixing 2-stroke fuel for various engines. It calculates the precise amount of oil needed for any fuel quantity and ratio, and helps track stored fuel freshness and expiry dates.
Experience extreme stunt riding with realistic moto physics. Master balance and control to perform insane wheelies across dynamic tracks with challenges, ramps, and traffic. Unlock and upgrade powerful bikes to become the ultimate wheelie champion.
This app helps radio control car racers calculate their final drive ratio and rollout. Easily select your car, input gear sizes, and get instant results. It also offers charts and saves favorite cars for quick access.
Experience unparalleled motorcycle racing with realistic 3D graphics and physics. Compete globally in GP modes, customize and upgrade your bikes, and race through diverse environments. Break speed limits and unleash your racing instincts.
Measure rotational speeds of objects using your phone's flashlight, laser, or magnetic sensor. Detect precise RPMs with adjustable flicker frequencies and a wide measurement range. Ideal for analyzing fan speeds, engine RPMs, and more.
This app provides real-time speed tracking using GPS technology. It offers customizable displays, speed limit alerts, and trip history logs for various vehicles. Enhance your driving or cycling experience with accurate speed monitoring.
Analyze engine sound to calculate RPM using advanced signal processing. Ideal for engine setup and diagnostics, it supports various engine types and provides real-time feedback for accurate readings.
Measure your vinyl turntable's speed and wow with accuracy using just your phone. Save past readings for comparison and enjoy a modern interface. Supports all common record speeds.