Comparison

CRONO vs GPS Rally Odometer

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

Head to head
About

CRONO

This app provides a comprehensive suite of tools for classic and vintage car rallies. It includes a synchronized clock, a precise stopwatch and countdown timer, trip and speed meters, and a speed pilot. It supports GPS synchronization and distance measurement via GPS or wheel sensors.

Highlights
  • Synchronized clock (GPS, atomic, manual)
  • 1/100 second stopwatch
  • 1/100 second countdown timer
  • Trip/twinmaster
  • Average speed meter
  • Speedpilot
  • Speedometer
Read full description

CRONO-MILLE-MIGLIA This app is the only stopwatch for classic and sport oldtimer uniformity rally. In a single app, the 7 most important applications for oldtimer rally are included: 1. Synchronized clock 2. a stopwatch with a split-precision of 1/100 second 3. countdown with a Split-precision of 1/100 second with Beep or Speech in 3 languages (de, en, it) 4. trip-/twinmaster 5. speedmeter that shows you the average speed of the test 6. Speedpilot 7. Speedometer 1. Synchronized clock The clock can be synchronized with GPS, atomic time or manual. 2. Stoppuhr-Modus The stopwatch has the splitting function: each time you press the start-button, the stopwatch stops and starts all over again to count. The result is recorded in a window and can be viewed afterwards. You can also activate a beep for every second - it also works with a headset. The reset-button resets the window with the results. 3. Countdown-Modus The countdown with 1/100 second accuracy, works at single and concatenated mode. When you insert the time of the tests, you can define that the departure occurs automatically or manually. Each time you press the start-button, the current countdown stops and the next one starts. The result is recorded in a window and can be viewed afterwards. The reset-button resets the results-window and reactivates the stored times. You can enter different stages with different sectors so that the concatenated mode only from sector to sector. After the last sector, the timer stops and the green button is disabled. To reactivate the "Start" you press the "Stop". 4. Trip-/Twinmaster The trip-/twinmaster, operating with activated GPS, indicates the speed of the entire mileage and trip odometer at every meter exactly (you can reset it with by touching the text "touch to reset"). In the countdown-mode is the text "touch to reset" invisible. 5. Speedmeter The speedmeter can show you the average speed of navigation from the 1st start and also from the current. 6. Speedpilot Speedpilot indicates the average speed not only with nummeri but visually with a progress indicator. 7. Speedometer Displays the current speed . * GPS/GNSS This app uses GNSS if it is supported by the device. GNSS is a collective term for the use of existing global satellite systems such as: GPS, GLONASS, Galileo, Beidou. * Distance measurement with wheel sensor (sensor-kit) or GPS The app can evaluate / measure the distance traveled with a wheel sensor or with GPS. Please note that GPS can only provide reliable measurements on open terrain. Therefore, please do not write any negative reviews if the app cannot provide reliable measurements in such cases. For this reason I recommend the use of a wheel sensor (sensor kit) for mountain areas. You use for the Start, the green software button "Start". For the start can be used of an external Bluetooth-device. Further information at: https://filippo-software.de * A full version can be purchased via the In-App Purchase option. There are 3 subscriptions to choose from: - Full-version for 1 year - Full-version for 6 months - Full-version for 1 month * Note! The subscriptions are not renewed automatically. After the expiration, the limitation of the free version will be applied again. * Please take note: Since GPS is only available on iOS devices (iPhone and iPad) with a phone function, the app can only be used with this devices. * Limitation in the free version: The total running time is limited to 5 minutes. * Disclaimer Continued use of GPS running in the background can dramatically decrease battery life. Supported languages: German, Italian, English

About

GPS Rally Odometer

This application precisely tracks time, speed, and distance for automobile rallies. It allows for detailed segment measurements, on-map plotting, and real-time adjustments for off-course travel or GPS inaccuracies.

Highlights
  • Time, speed, and distance tracking
  • Stage and checkpoint measurements
  • On-map plotting of rally path
  • Adjustable distance units (miles/km)
  • Off-course distance subtraction
  • GPS coordinate adjustment
  • Time adjustments for stages
Features
Read full description

This app is designed for various types of automobile rallies that require measurement of time, speed, or distance between segments of the rally route including stages and checkpoints. To make sure that all initial conditions are set properly when using GPS, touch the "Reset/Pause" button and choose the "Reset, New Rally" option. Also, it is important to allow Apple's internal GPS time to determine the current location and to begin interacting with the app by driving around a bit before you start using the app on a rally course. Begin computing distance, time, and speed by touching the "Start Rally" button. Alternatively, when the app has been either restarted to zero distance or paused, you may select a minute for the "Next Starting Time." GPS inputs trace the path along the rally route. From time to time you may measure time, speed, and distance for a stage or a checkpoint. These measurements will be stored in a table and the points will be indicated on a map. An alternative view showing the odometer measurements more prominently is available by touching the "Mode" button in the upper menu bar. You may subtract distance when you travel off course. A toggle button switches between on course (blue line) and off course (red line) travel. Distance measurement can be set to miles or kilometers and time measurement can be set to minutes and seconds or decimal minutes. The distance may be displayed with either 2 or 3 digit precision. Make your selections by touching the Settings with a "sprocket" button beside the "About" button. The app is designed to adjust the GPS coordinates of a moving vehicle owing to the time between reception of new GPS signals and to the time lag between the time the signal was generated from satellites and the time when processing actually occurs in the app. Also, you may adjust the location coordinate by the distance between the GPS receiver in the car (either the iPhone or iPad or some third-party GPS receiver) and the position on the car where a rally may measure time or location at timed controls (sometimes this is the front of the car or the center of the front wheels). These three potential errors in coordinate measurement are discussed at length in a 6-part thread in the Facebook "Road Rally Tech Talk" forum. To fine-tune the app's distance between GPS receiver and front wheels (if necessary) and clock time figures to the rally's official measures with the options in the Adjustments popup. Unlock to make adjustments and lock to save the changes you make and to prevent inadvertent changes. You may pause or gain time on a particular stage by adding or subtracting time on a stage. Also, you might wish to "bump" the recorded GPS distance +/- to align with official rally distances. Touch the button in the lower right-hand corner to access the "bump" function. A log view shows additional information at each stage including the latitude, longitude, and the current speed at the time the New Stage button was touched. Disclaimer: Continued use of GPS running in the background can dramatically decrease battery life.

Screenshots

CRONO4 screens
GPS Rally Odometer4 screens

Verdict

The call

The clearest difference is review sentiment: CRONO at 56% against GPS Rally Odometer's 0%. CRONO also leads on price (Free vs $15.99). GPS Rally Odometer's advantage is in-app purchases (none vs 3) and iOS requirement (13.6 vs 16.0). On update cadence, ads and 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

CostPrice · In-app purchases · Ads · Monetization

CRONO is free to download; GPS Rally Odometer costs $15.99 up front. CRONO sells 3 one-off in-app purchases. GPS Rally Odometer asks for nothing beyond the download.

UpkeepUpdate frequency

CRONO ships an update monthly, GPS Rally Odometer every 3 weeks. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.

Scorecard5 real differences · 3 level
CRONO versus GPS Rally Odometer: the parameters behind the verdict, then further details
ParameterCRONOGPS Rally Odometer
PriceFree — better$15.99
Positive reviews55.6% of reviews — better0.0% of reviews
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.013.6 — better
Further details — not scored
Size15 MB1 MB
Age rating4+4+
DeveloperFilippo GozzaMSYapps

Customer experience

CRONO

Written reviews9 reviews
Positive55.6%
Neutral11.1%
Negative33.3%

GPS Rally Odometer

Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

3 purchases

CRONO

One-time3
  • Full version for one month$5.99
  • Full version for 6 months$18.99
  • Full version for one year$27.99
None

GPS Rally Odometer

No in-app purchases

Questions

Is CRONO free?
CRONO is free to download, with in-app purchases available.
Is GPS Rally Odometer free?
GPS Rally Odometer costs $15.99, with no in-app purchases.
Do CRONO or GPS Rally Odometer have ads?
Neither CRONO nor GPS Rally Odometer shows ads.
Which is updated more often, CRONO or GPS Rally Odometer?
CRONO ships an update monthly, and GPS Rally Odometer every 3 weeks. Most recently, CRONO was updated on October 26, 2026 and GPS Rally Odometer on October 29, 2026.

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