Bottom line: The best car performance apps for iPhone in 2026 are FastTrack (free, ±0.02s timing, community-driven), Dragy ($179+, hardware-based, ±0.01s), and RaceBox Mini ($199, ±0.01s). FastTrack is the only one with a built-in social feed and parts marketplace.

Last reviewed: May 12, 2026

7 Best 0-60 Apps in 2026: Free vs Paid, Tested

Performance tracking has come a long way from stopwatches and guesswork. Whether you want to measure your 0-60 time, log quarter mile runs, or track your car's performance over time, there is no shortage of options in 2026. This guide compares the leading tools and apps so you can pick the right one for how you drive.

What to Look for in a Performance Tracking App

Before diving into specific products, here is what matters most.

Accuracy. GPS-based timing is the baseline standard. Accelerometer-only apps introduce drift and error. Look for apps that use GPS as the primary speed source.

Data logging. A single number is useful, but a full speed-over-time graph tells you where you are fast and where you are losing time. The best tools record complete telemetry for every run.

Community and comparison. Knowing your 0-60 time is more meaningful when you can see how it compares to other owners with the same car. Social features and leaderboards add context to raw numbers.

Ease of use. If you have to fumble with settings and calibration before every run, you will stop using the app. The best tools work with minimal setup.

Cost. Some options are free, some require a subscription, and some require dedicated hardware costing hundreds of dollars.

FastTrack

FastTrack is a free iOS app that combines GPS-based performance timing with a full social platform. It measures 0-60, 0-100, quarter mile, and half mile times using your phone's GPS receiver and motion activity sensors.

What sets it apart. FastTrack is more than a timing tool. It includes a vehicle garage where you can log your car's modifications, a social feed for sharing runs and photos, group communities, leaderboards filtered by vehicle, and a peer-to-peer parts marketplace. The mod tracking is particularly useful because your modification list is attached to every run, making before-and-after comparisons straightforward.

Accuracy. FastTrack uses a 100Hz accelerometer with 3D gravity calibration for launch detection (within ~30ms), combined with GPS Doppler-derived speed fed through an Apollo 11–class sensor-fusion pipeline with a backward smoothing pass. This dual-sensor approach actually detects launch faster than the standard Dragy, which has no accelerometer and relies solely on GPS speed crossing zero (~100ms latency). For 0-60 times, FastTrack is within ±0.02 seconds of dedicated hardware. The accuracy gap widens slightly for distance-based metrics like quarter mile times, where dedicated GPS antennas have a larger advantage.

Cost. Free, with no hardware purchase required. The app runs on any modern iPhone.

Best for: Enthusiasts who want performance timing combined with community features, mod tracking, and vehicle comparison, all without spending anything.

Dragy

Dragy is a dedicated GPS performance meter that has been a staple in the car community for years. The small Bluetooth module connects to your phone and provides 10 Hz GPS data for acceleration timing.

What sets it apart. Dragy's hardware module provides more consistent GPS update rates than phone-only solutions. The companion app has a large user base and an online leaderboard where you can compare results by vehicle.

Accuracy. The 10 Hz GPS module with a dedicated antenna produces consistent results for acceleration testing. However, the standard Dragy has no accelerometer, so launch detection relies entirely on GPS speed data, which can add up to 100ms of latency. Results are widely accepted in the enthusiast community as credible.

Cost. The GPS module costs approximately $150 to $200. The app is free to use with the hardware.

Best for: Drivers who want a dedicated, purpose-built timing device with high credibility in the community, and are willing to pay for the hardware.

RaceBox

RaceBox offers a range of GPS data loggers, from the compact RaceBox Mini at 25 Hz to the RaceBox Pro at 25 Hz with additional sensors. These devices provide high-resolution GPS data for acceleration testing and lap timing.

What sets it apart. RaceBox covers both straight-line and track use. The higher GPS update rates and optional inertial measurement unit (IMU) make it one of the most precise consumer-grade options available. It supports acceleration tests, lap timing, and data export for detailed analysis.

Accuracy. At 25 Hz, RaceBox offers some of the best precision in the consumer market. The optional IMU further improves accuracy during high-G maneuvers.

Cost. The RaceBox Mini starts around $200. The Pro model with additional sensors runs $350 and up.

Best for: Serious track enthusiasts and data nerds who want the highest precision and use their cars on both the strip and the circuit.

RaceChrono

RaceChrono is a data logging app available on iOS and Android that supports external GPS receivers, OBD-II data, and various third-party sensors. It is primarily designed for lap timing and circuit analysis but also handles acceleration testing.

What sets it apart. RaceChrono is the Swiss Army knife of motorsport data logging. It can pull data from your car's OBD-II port, external GPS units, heart rate monitors, and more. The analysis tools are deep, allowing you to overlay laps, compare sectors, and export data for professional-grade review.

Accuracy. Depends on your GPS source. With an external 10+ Hz receiver, it is very accurate. Phone-only GPS is workable but less precise.

Cost. The base app is free with limited features. Pro unlock is a one-time purchase of about $6. External GPS hardware is additional.

Best for: Track day regulars who want deep data analysis, multi-source logging, and do not need social features or community leaderboards.

How They Compare

| Feature | FastTrack | Dragy | RaceBox | RaceChrono | |---|---|---|---|---| | 0-60 / Quarter mile timing | Yes | Yes | Yes | Yes | | GPS-based | Yes (phone GPS + 100Hz accelerometer) | Yes (10 Hz GPS module) | Yes (25 Hz GPS + IMU) | Yes (phone or external) | | Lap timing | No | No | Yes | Yes | | Social feed / community | Yes | Limited leaderboard | Limited leaderboard | No | | Mod tracking | Yes | No | No | No | | Parts marketplace | Yes | No | No | No | | Hardware required | No | Yes (~$175) | Yes (~$200+) | Optional (~$100+) | | Cost | Free | ~$175 hardware | ~$200+ hardware | Free/$6 Pro | | Platform | iOS | iOS / Android | iOS / Android | iOS / Android |

Which Should You Choose?

If you are primarily interested in acceleration testing and want to get started immediately without buying hardware, FastTrack is the most complete free option. The social features, mod tracking, and vehicle-specific leaderboards add value beyond raw timing.

If you want the most credible standalone timing device with wide community recognition, Dragy is the established choice. The hardware cost is modest and the results are trusted.

If you track your car on circuits and want the highest precision data logging for both straight-line and lap performance, RaceBox is the premium option.

If you are a data-focused track day enthusiast who wants deep analysis tools and multi-sensor integration, RaceChrono offers the most flexibility.

There is no single best answer. The right tool depends on what you drive, where you drive it, and what you want to do with the data.

Get Started with FastTrack

If you want to start tracking your car's performance without buying dedicated hardware, FastTrack is the most complete free option available. It combines GPS timing, mod tracking, and community leaderboards in a single app. FastTrack is free on iOS. Download FastTrack from the App Store and start tracking today.

FAQ

Can phone GPS really compete with dedicated GPS hardware?

It depends on the metric. For 0-60 timing, FastTrack is within ±0.02 seconds of dedicated hardware, and actually has faster launch detection (~30ms) than the standard Dragy (~100ms) thanks to its 100Hz accelerometer and an Apollo 11–class sensor-fusion pipeline. For longer distance metrics like quarter mile times, dedicated hardware has a marginal advantage due to superior GPS antenna quality and positioning. Where dedicated devices still edge ahead is run-to-run consistency in weak-signal environments, with tighter clustering of repeated results thanks to purpose-tuned antennas and roof-mounted placement. For tracking progress, comparing mods, and competing with friends, the difference is negligible.

Do I need a performance tracking app if I go to the drag strip?

A drag strip gives you an official time slip, which is the gold standard for competitive comparisons. However, most people do not go to the strip regularly. A performance app lets you test anytime on your own schedule and build a history of runs over time. Many enthusiasts use both: the strip for official times and an app for regular testing and mod validation.

Is FastTrack only for drag racing?

No. While FastTrack excels at acceleration timing, it is a full automotive social platform. The garage feature lets you catalog your vehicles and modifications. The social feed and groups connect you with other enthusiasts. The marketplace lets you buy and sell parts within the community. The timing feature is one part of a broader platform built for car people.