Hondata vs Flagger
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hondata
Transform your phone into a car performance and diagnostic tool. Monitor real-time data, track fuel economy, and troubleshoot engine issues. Includes customizable gauges, trouble code reading, and CarPlay support.
- Real-time sensor tracking
- Read and clear trouble codes
- Fuel economy tracking
- CarPlay support
- User-defined sensor plotting
- Speed limit warnings
- Race track data
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Track performance of your car in real time by gauges and graphs. Troubleshoot malfunctions by accessing the on board ECU. Know what is wrong with your car before taking it to the mechanic.Track fuel economy and save money on gas. These are just some of the features the Hondata app has to offer. Hondata app transforms your phone/tablet into an all in one performance tracking and troubleshooting tool for your car. There is a complete version of this app that includes all the addons available at a discounted price. Fautures: • Customizable gauges can track up to 80 sensors in real time including fuel economy, G-force and battery voltage. • Read and Clear trouble codes and reset MIL (service engine light). • Read from more than 40 diagnostics parameters including engine knock count, VTEC pressure and more. • Metric and Imperial measures. • CarPlay support. View sensor data on head unit. • Real-time user-defined sensor plotting. Graph up to 4 sensors at the same time on interactive graph that can be scrolled, paused and polled. • Gauge list feature can track every sensor at the same time. • Instant horsepower, mpg/kml fuel economy, boost pressure and G force tracking. • Speed limit warning: Get notified when driving over speed limit. • High coolant temperature warning gives you instant notification when your car is running too hot. • HUD mode for dashboard view : Heads up display for driving at night. • Two themes to choose from. • landscape mode for all views. Addons • Fuel Economy: - Live and average fuel economy tracking for 0-5 min, 0-30 min and 0-2 hr intervals and a detailed summary. - Long term tracking with six different intervals. (1 week, 2 weeks, 4 weeks, 13 weeks, 26 and 52 weeks). - 4 different units of measure: MPG,KPL (Km/L), L/100 Km, Miles per imperial gallon. - Interactive graph of long term data that can be cropped and scrolled through. - Export fuel history to CSV file (spreadsheets). - Other statistics: Distance travelled, average speed, money spent, CO2 produced and fuel consumed. - 4 methods of calculation available. For non MAF equipped vehicles. • Race track package: - Real time lap data, gap delay time and position in race track using high frequency GPS tracking. - Comprehensive summary of race with lap times, speed fluctuations on track and more. - Get drag racing times (0-60 mph, 0-100 mph, 1/4 mile 1/8 mile etc.) - Load and save unlimited number of tracks onto device. - Crucial racing data including real time horsepower, g-force and a detailed driving summary. Share your results with friends. - Transmission gear information and optional shifting assistant which (for manual transmission vehicles) which notifies optimal moment for shifting. - Customizable view that toggles between speed/rpm gauge, real time track positioning and G-sensor feedback. - Record your race in HD with gauge and track overlays. (dash cam add-on required) • Dashcam: Record smooth HD video with overlaying gauges (speed,rpm, etc), time, location (GPS coordinates) and G-force sensor in four different resolutions. Record from 80 sensors and up to 5 gauges. • Sensor logger: - Record up to four sensors simultaneously with 5 refresh rate options. - Save graph sensor data to CSV file and export it for further analysis. - Send real time data to a TCP socket (IP Address) over the network. *Your vehicle must be equipped with MAF sensor for instant horsepower and torque readout* *Your vehicle must be equipped with MAP sensor for boost pressure readout* Visit www.hondata.com for more info. For help: mobile@hondata.com
Flagger
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FLAGGER - REACTION TIME TRAINER Master your racing starts and improve your reaction times with Flagger, the ultimate drag racing reaction trainer and performance analyzer. Whether you're a professional racer or just getting started, Flagger helps you perfect your launches and analyze your performance with precision. KEY FEATURES: REAL-TIME G-FORCE MEASUREMENT Track your vehicle's acceleration with advanced motion sensing technology, giving you detailed insights into your launch performance. MULTIPLAYER RACING Challenge friends to head-to-head races or practice sessions. Create race rooms and share them easily with a unique code. PROFESSIONAL GRADE ANALYSIS Get detailed breakdowns of your: Reaction times Peak G-force Launch consistency Performance trends CUSTOMIZABLE PRACTICE Adjustable countdown timers Choose between MPH or KM/H Practice different tree configurations RACE HISTORY Keep track of your progress with detailed historical data of all your runs, helping you identify patterns and improvements. SOCIAL FEATURES Share your results Compare performances Challenge friends Perfect for: Drag racers Motorsport enthusiasts Racing teams Driver training Performance tracking Download Flagger now and start improving your reaction times and launch performance!
Screenshots
Verdict
The clearest difference is price: Flagger at Free against Hondata's $6.99. Flagger also leads on in-app purchases (none vs 5). Hondata's advantage is ads (none vs shown) and update cadence (monthly vs every 2 months). On device support 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
Flagger is free to download; Hondata costs $6.99 up front. Hondata sells 5 one-off in-app purchases. Flagger asks for nothing beyond the download.
Hondata ships an update monthly, Flagger every 2 months. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.
| Parameter | Hondata | Flagger |
|---|---|---|
| Price | $6.99 | Free — better |
| Rating | 4.7 (1.7K ratings) — better | — |
| Positive reviews | 44.9% of reviews | — |
| Number of ratings | 1.7K — better | — |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Best chart rank | #26 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 11 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Alphabit Software Inc. | Sheharyar Irfan |
Bugs and requests
Hondata
Reported bugs
4 issues- Horsepower and torque readings fluctuating
- Fuel economy display not working
- Sensor configurations causing app crashes
- Bluetooth connection problems
Requested features
4 requests- Improved connectivity and reliability
- Expanded sensor support and customization
- Analytic and performance tracking features
- Unit conversion options
Flagger
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Hondata
- Sensor logging$1.99
- Fuel economy$1.99
- Dash camcorder$2.99
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- Racetrack package$2.99
- Complete package$8.99
Flagger
No in-app purchases









