Comparison

ChronoMaster vs Master

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

Head to head
About

ChronoMaster

This app is designed for classic car rally pilots and co-pilots to precisely navigate complex special stages. It offers 1/100s second accuracy for timing and distance, with a graphical interface to manage interlaced stages, average speed controls, and countdown timers.

Highlights
  • 1/100s second precision timing
  • Graphical interface for complex stages
  • Acoustic countdown timer
  • Automatic average speed calculation
  • Transfer stage data from roadbook
  • Bilingual interface (English/German)
Features
Read full description

A must have for the serious classic car rallye pilot & co-pilot with a passion to win. Classic car rallies are usually conducted as regularity rallies with so called "Special Stages" which require the pilot to drive a specific distance in a predefined time. Simple Special Stages comprise of just one sector (e.g. 100 meters in 10 seconds). However more serious rallies such as the Mille Miglia require you to master sets of complex, interlaced Special Stages or to maintain a predefined average speed across a stage. ChronoMaster lets you master even the most complicated special-stages of a classic car rallye with ease and 1/100s of a second precision. Don’t get distracted by confusing interlaced stages, secret average speed controls, light-barriers and tubes. ChronoMaster does what most expensive rallye-computers promise – at a fraction of the cost! And it is more intuitive to use on the iPad’s large & bright screen with a full graphical interface. - Transfer all data of a day’s special stages from the roadbook to the iPad before the rallye starts - Easy to use graphical interface to enter special stage data (time, distance, average speed) - Full graphical representation of special stage, including individual/interlaced sectors, light-barriers, tubes - Select the special stage from a list – and off you go! - Up to 15 sectors/special stage - Unlimited number of special stages - Acoustic countdown timer for last 10 seconds of special stage/sector (earphone recommended for driver) - Displays most important information during special stage: time to go, distance from start, distance to finish, average speed of stage/sector - Automatically calculates average speed based on stage-distance/time - No more stopwatch or average-speed tables required - Simple interface lets you concentrate on navigation and precision driving - Sector target time can be input with up to 1/10sec accuracy (e.g. 21.3 sec) - Maximum distance of a special stage is 99.999km - Zero-sync - start multiple sectors of a special stage at once - Start-buttons can be adjusted for left/righthand use (To use start-buttons most precisely during rallying on bumpy roads, place your thumb on the start button, hold it and release button upon start) - Bilingual user interface (English/German) Good luck and most of success with your next classic rallye! ==== Version History ==== v 1.3 NEW: Start-beep does now allow acoustic control of the start which will result in even higher precision during Special Stages. v 1.2 NEW: Up to 15 sectors/stage NEW: Larger digits in the countdown-timer for better usability NEW: English Version NEW: ChronoMaster's functionality is independent of units (kilometers/miles) - although it currently only displays metric units (km/m) just input Special Stage distances in miles as indicated in the roadbook (e.g. 3.7 miles), disregard the displayed "km" unit - and off you go! v 1.1 NEW: Sector target time can input now with 1/10sec accuracy (e.g. 21.3 sec) NEW: Maximum distance of a special stage now 99.999km NEW: Zero-sync - start multiple sectors at once

About

Master

This app provides essential tools for classic and sport classic uniformity rallies, including synchronized clocks, stopwatches, countdowns, and tripmasters. It allows for multiple tests simultaneously and saves log files that can be emailed, opened as tables, or viewed on maps. An optional Head-Up-Display function projects mirrored data onto a windshield.

Highlights
  • Synchronized clock with GPS/atomic time
  • 1/100 second stopwatch and countdown
  • Tripmaster and speedmeter
  • Multiple simultaneous tests
  • Log file saving and sharing
  • Optional Head-Up-Display
  • Display sharing with second device
Read full description

Master-Of-Regularity This app is perfect for the classic and sport classic uniformity rally. In a single app, the 7 most important applications for oldtimer rally are included: 1. Synchronized clock with GPS, atomic time or manual. 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. tripmaster 5. speedmeter that shows you the average speed of the test 6. Speedpilot 7. Speedometer There is no limit on the number of stages/sectors. The biggest advantage over other Apps is that you can run multiple tests at the same time, such as a test inside a test. At the end of a stage and press the reset button, a log file is always saved. The LogFile can: 1) be sent by e-mail. 2) be opened as a table. 3) be seen as a route in Google Maps. The "Head-Up-Display" function is optionally available via the settings. This allows the mirrored display to be projected onto a windshield. Added the function "Share display". Share the display with a second smartphone/tablet so that the driver also sees the data from the current test. * 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. For the start can be used of an external Bluetooth-device. Further information at: http://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 apps can only be used with this devices. * The only limitations of the free version: The total running time is limited to 5 minutes. Supported languages: German, Italian, English

Screenshots

Master4 screens

Verdict

The call

The clearest difference is price: Master at Free against ChronoMaster's $64.99. Master also leads on update cadence (every 3 weeks vs every 9 months) and review sentiment (40% vs 25%). ChronoMaster's advantage is in-app purchases (none vs 3) and iOS requirement (9 vs 16.0). On 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

Master is free to download; ChronoMaster costs $64.99 up front. Master sells 3 one-off in-app purchases. ChronoMaster asks for nothing beyond the download.

UpkeepUpdate frequency

ChronoMaster ships an update every 9 months, Master every 3 weeks. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.

Scorecard6 real differences · 2 level
ChronoMaster versus Master: the parameters behind the verdict, then further details
ParameterChronoMasterMaster
Price$64.99Free — better
Positive reviews25.0% of reviews40.0% of reviews — better
Update frequencyEvery 9 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPadiPhone, iPad — better
Requires iOS9 — better16.0
Further details — not scored
Size4 MB47 MB
Age rating4+4+
DeveloperBrandsOnSpeed GmbHFilippo Gozza

Customer experience

ChronoMaster

Written reviews4 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

Master

Written reviews5 reviews
Positive40.0%
Neutral20.0%
Negative40.0%

In-app purchases

None

ChronoMaster

No in-app purchases

3 purchases

Master

One-time3
  • Full version for one month$5.99
  • Full version for 6 months$18.99
  • Full version for one year$27.99

Questions

Is ChronoMaster free?
ChronoMaster costs $64.99, with no in-app purchases.
Is Master free?
Master is free to download, with in-app purchases available.
Do ChronoMaster or Master have ads?
Neither ChronoMaster nor Master shows ads.
Which is updated more often, ChronoMaster or Master?
ChronoMaster ships an update every 9 months, and Master every 3 weeks. Most recently, ChronoMaster was updated on October 23, 2026 and Master on October 26, 2026.

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