C4Timekeeper vs Sirius Rally Tracking
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
Sirius Rally Tracking
Track rally racing vehicles globally with this dedicated application. Monitor competitions and stay updated on race progress worldwide.
- Global vehicle tracking
- Rally racing competitions
- Real-time race monitoring
- Worldwide coverage
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Vehicle tracking app for rally racing competitions around the world.
Screenshots
Verdict
The clearest difference is in-app purchases: Sirius Rally Tracking at none against C4Timekeeper's 3. Sirius Rally Tracking also leads on iOS requirement (12.0 vs 16.0). 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
Both are free to download. C4Timekeeper sells 3 one-off in-app purchases. Sirius Rally Tracking asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 21, 2026 and June 11, 2026 respectively.
| Parameter | C4Timekeeper | Sirius Rally Tracking |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Filippo Gozza | QUBOL S.A. |
In-app purchases
C4Timekeeper
- Full version for one month$4.99
- Full version for 6 months$8.99
- Full version for one year$13.99
Sirius Rally Tracking
No in-app purchases
Questions
Is C4Timekeeper free?
Is Sirius Rally Tracking free?
Do C4Timekeeper or Sirius Rally Tracking have ads?
Which is updated more often, C4Timekeeper or Sirius Rally Tracking?
Other comparisons
