Comparison

C4Timekeeper vs Rally Master

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

Head to head
About

C4Timekeeper

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Stopwatch for timekeeper This app is a stopwatch for timekeeper of Oldtimer Rallye This app replaces the expensive stopwatch of Oldtimer Rally organizer. This app can be used by the timekeeper for the secret time control. On the external Bluetooth button (can be me ordered ) a photocell can be connected. A printer is not necessary, because you can send the times by e-mail to the organizers. Thus, need for evaluations, the organizers do not wait until the timer to come back. Synchronization of the clock: 1. Manually, using as a reference the time of the organizers. 2. GPS, using the satellite time. 3. The atomic time, using one of the many global or regional server. Functions: You can use for the Stop, the green software button "Start". For the Stop can also be used with an external bluetooth-button. The button works with all iPad e iPhone. Important! A photocell can at the input for the button to be connected (the contact is open). The external button, you can order from me, price see at https://filippo-software.de. Limitations of the Free-version: * A maximum. 5 times to stop. Supported languages: German, Italian, English

About

Rally Master

Easily create and manage rally courses with GPS checkpoints. Add, delete, and reposition checkpoints, and adjust timing information. Track registered teams and their readiness status.

Highlights
  • GPS checkpoint system
  • Add, delete, and reposition checkpoints
  • Adjust timing information
  • View registered teams and status
  • Course layout tool
Features
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Easily lay out a course using the Richta GPS Checkpoint system. The Rally Master app allows you to add, delete and even drag to reposition checkpoints. After checkpoints have been added to the map, you can quickly adjust any timing related information. The app also allows you to see all teams who have registered and their ready-status.

Screenshots

C4Timekeeper4 screens
Rally Master4 screens

Verdict

The call

The clearest difference is in-app purchases: Rally Master at none against C4Timekeeper's 3. On price, 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

Both are free to download. C4Timekeeper sells 3 one-off in-app purchases. Rally Master asks for nothing beyond the download.

UpkeepUpdate frequency

C4Timekeeper ships an update every 2 months, Rally Master every 3 months. Both last shipped on October 8, 2026.

Scorecard1 real difference · 9 level
C4Timekeeper versus Rally Master: the parameters behind the verdict, then further details
ParameterC4TimekeeperRally Master
PriceFreeFree
Rating—3.0 (2 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.6 — better
Further details — not scored
Size10 MB25 MB
Age rating4+4+
DeveloperFilippo GozzaDavid Bireta

In-app purchases

3 purchases

C4Timekeeper

One-time3
  • Full version for one month$4.99
  • Full version for 6 months$8.99
  • Full version for one year$13.99
None

Rally Master

No in-app purchases

Questions

Is C4Timekeeper free?
C4Timekeeper is free to download, with in-app purchases available.
Is Rally Master free?
Rally Master is free to download, with no in-app purchases.
Do C4Timekeeper or Rally Master have ads?
Neither C4Timekeeper nor Rally Master shows ads.
Which is updated more often, C4Timekeeper or Rally Master?
C4Timekeeper ships an update every 2 months, and Rally Master every 3 months. Most recently, C4Timekeeper was updated on October 8, 2026 and Rally Master on October 8, 2026.

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