stopwatch4 vs Sector Lapper Stopwatch
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
stopwatch4
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thip App Developed by the 4sport team and Designed for using inSport Events timing in Israel. the app make the following: take start times of each heat in the race run stopwatch for each heat in the race share the race with other users
Sector Lapper Stopwatch
This stopwatch app is designed for motorsports, offering sectored lap timing with configurations for 1, 2, or 3 sectors. It highlights best sectors, best laps, and the ideal lap in real-time and upon pausing. It's a valuable tool for anyone involved in racing.
- Sectored lap timing (1, 2, or 3 sectors)
- Real-time best sector and lap display
- Ideal lap calculation
- Intuitive and easy to use
- Motorsports focused design
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Sector lapper is a cronometer/stopwatch app with sectored laps, designed and driven for motorsports use! You can choose from 1, 2 ou 3 sectors lap configuration. Easy and intuitive, SectorLapper app shows best sectors and best laps "on-the-fly" (printed green) and even shows the ideal lap (printed purple) when you pause it. This is a must-have tool for driving coaches, team mechanics, team co-drivers and even team principals. Sector Lapper is fully funcional and completely free for use. Never miss a lap sector timing again with SectorLapper App!
Screenshots
Verdict
The clearest difference is ads: stopwatch4 at none against Sector Lapper Stopwatch's shown. Sector Lapper Stopwatch's advantage is update cadence (weekly vs every 36 months). On price, in-app purchases, device support and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.
stopwatch4 ships an update every 36 months, Sector Lapper Stopwatch weekly. The most recent releases landed on October 26, 2026 and October 15, 2026 respectively.
| Parameter | stopwatch4 | Sector Lapper Stopwatch |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 36 months | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 3 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | ran kellner | CRISTIAN PETICOV |
In-app purchases
stopwatch4
No in-app purchases
Sector Lapper Stopwatch
No in-app purchases
Questions
Is stopwatch4 free?
Is Sector Lapper Stopwatch free?
Do stopwatch4 or Sector Lapper Stopwatch have ads?
Which is updated more often, stopwatch4 or Sector Lapper Stopwatch?
Other comparisons
