Comparison

iAccel vs MotoGuru

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

Head to head
About

iAccel

Measure your vehicle's acceleration and braking performance with this app. It displays real-time gauges and graphs, stores results for analysis, and offers various test modes. Upgrade to Pro for advanced features like EDR and Crash modes.

Highlights
  • Acceleration and braking performance testing
  • Real-time gauge and graph display
  • CSV data export for analysis
  • 0-60 mph and 0-100 km/h tests
  • Continuous recording mode
  • Automatic calibration to gradient
  • Day/Night mode
Read full description

iAccel is a performance meter designed to test the acceleration and braking performance of your vehicle. In use it displays a series of gauges to monitor performance and a continual graph of selected parameters. When performing a test the results can be displayed on screen and are stored in a CSV file for easy export if further analysis is required. In addition to brake testing, 0-30 and 0-60 mph acceleration tests are available together with their metric equivalents. Standing ¼ mile acceleration, standing 400 m, 0-80 mph and 0-120 km/h tests together with EDR and Crash modes are available as an upgrade to the Pro version. iAccel also has a continual recording mode which simply records the data to a CSV file received while the device is operating. To avoid running of of space continuous recording is limited to 5 minutes in the Pro version and 20 seconds in the Free version. If you run over this time, the device will continue to record the last 5 minutes (20 seconds) of data and delete older data unless the AutoStop option is selected in the settings. A calibration check feature is also available in the Pro version so you can check and record to a file the accuracy of the accelerometers. To use the app, your iPhone should be mounted in the vehicle with the long edge of the phone perpendicular to the direction of travel. The device doesn't have to be perfectly level, approximately level is fine. Drive to the area where the test is to be performed and start the app. This launches the test screen and automatically calibrates the device to the gradient at that location. The Reset button can also be used to recalibrate the device at any time and is best performed when the vehicle is stationary. This avoids any bumps in the road distorting the calibration. You can change the type of test you want to perform using the Select Test screen which can be accessed by pressing the Menu button. For Brake and Acceleration tests press the Arm button when you are ready to begin the test and perform the test. You can press the Arm button at any time, even when the vehicle is in motion. The results will be displayed automatically once the test is complete and includes two seconds of data prior to the start of the test and a short time after the test has finished. The limits of the test are highlighted on the result graphs. For Continuous type tests, press the Start button to start recording and press the Stop button to stop. Continuous test results are not displayed automatically but results can be displayed from the Files options accessed by pressing the Menu button. For ease of use, double tapping the Speedometer duplicates the effect of pressing the Start / Stop button. Double-tapping the left-hand gauge duplicates the Day / Night button and double tapping the right-hand gauge duplicates the Reset button. Tapping on the graph, cycles the display between acceleration, speed, orientation, rate of rotation and magnetometer. More detailed information on the operation of iAccel is available from the Information page in the app. The app uses a combination of GPS, accelerometer and other sensors and is only accurate when the device is operated correctly and all sensors are receiving suitable signals. Please note that continued use of GPS can dramatically decrease battery life. This app is designed for use off-road and any performance testing should only be performed off the public road network. At all times you must comply with all traffic regulations applicable to your location. J Neades can accept no liability for any injury, loss or damage which may occur while using this app.

About

MotoGuru

This app helps motorcycle racers and track day enthusiasts prepare for events, manage their season, and optimize bike setups. It guides users through packing, circuit learning, and performance tracking to build confidence and expertise.

Highlights
  • Season planning and scheduling
  • Smart packing checklists
  • Bike setup tracking
  • Circuit mapping and notes
  • Performance data insights
  • Maintenance tracking
Features
Read full description

Getting into track days and racing can be overwhelming. What do you pack? How do you set up your bike? How do you learn a new circuit? MotoGuru is your personal guide, built by racers to help you navigate every step of the journey, from your first time on track to reaching your full potential. We built MotoGuru to be the mentor we wish we'd had—to help you learn the ropes, stay organised, and turn your passion into real performance. PLAN YOUR SEASON WITH CONFIDENCE Never miss a booking again. Organize your entire season, from single track days to full race weekends, with clear scheduling and timely reminders so you can arrive prepared and ready to perform. LEARN THE CRAFT OF PREPARATION Arrive at the track with the quiet confidence of a professional. Our smart checklists guide you through what to pack, helping you learn what's essential so you can build a bulletproof preparation routine for every event. MASTER YOUR BIKE'S SETUP A perfect setup is a conversation between you and your bike. We help you track every precise change—from suspension clicks to custom electronics—and link them to your on-track feelings, so you can truly understand why certain settings work and build a setup that inspires confidence. MASTER ANY CIRCUIT, FASTER A new circuit can be intimidating. We help you build confidence lap by lap by turning the track map into your personal guide. Pinpoint your braking markers, visualize your lines, and make notes on every corner to turn an unknown track into your own. TURN EXPERIENCE INTO EXPERTISE Every lap you ride generates valuable data. We help you connect the dots by tracking the usage of every part and providing smart insights—from maintenance schedules to race fuel strategy—turning your hard-earned on-track experience into true expertise. Download today and transform your track days! MotoGuru includes a free version to get you started, with a MotoGuru Pro subscription available to unlock all advanced features. Terms of Use: https://www.motoguru.app/terms-of-service

Screenshots

iAccel4 screens
MotoGuru4 screens

Verdict

The call

The clearest difference is update cadence: MotoGuru at every 3 weeks against iAccel's every 5 months. iAccel's advantage is iOS requirement (13.0 vs 15.0). On price, review sentiment, ads and in-app purchases 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. iAccel sells 1 one-off in-app purchase and MotoGuru sells 7 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

iAccel ships an update every 5 months, MotoGuru every 3 weeks. The most recent releases landed on June 1, 2026 and September 7, 2026 respectively.

Scorecard2 real differences · 8 level
iAccel versus MotoGuru: the parameters behind the verdict, then further details
ParameteriAccelMotoGuru
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.0
Further details — not scored
Size1 MB72 MB
Age rating4+4+
DeveloperJoseph G NeadesVision Analysis

Customer experience

iAccel

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

MotoGuru

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

iAccel

One-time1
  • iAccel Pro$2.99
7 purchases

MotoGuru

Subscriptions7
  • Monthly Subscription$9.991 Month
  • Monthly MG 25% off for 3 mths3 Months trial$9.991 Month
  • Monthly MG 50% off for 3 mths3 Months trial$9.991 Month
Show 4 more
  • Monthly MG 50% off for 6 mths6 Months trial$9.991 Month
  • Monthly MG £1.99 for 1 mth1 Month trial$9.991 Month
  • Annual Subscription 10% off1 Year trial$79.901 Year
  • Annual Subscription$79.991 Year

Questions

Is iAccel free?
iAccel is free to download, with in-app purchases available.
Is MotoGuru free?
MotoGuru is free to download, with in-app purchases available.
Do iAccel or MotoGuru have ads?
Neither iAccel nor MotoGuru shows ads.
Which is updated more often, iAccel or MotoGuru?
iAccel ships an update every 5 months, and MotoGuru every 3 weeks. Most recently, iAccel was updated on June 1, 2026 and MotoGuru on September 7, 2026.

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