Harry's LapTimer Rookie

Harald Schlangmann · iOS

Harry's LapTimer Rookie

Explore the ad evidence, study the storefront, and build your next acquisition hypothesis.

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01 / Creative research

Turn the unknowns into a research plan.

01

Check the acquisition promise

Read the store headline, screenshots and description. What problem is the app promising to solve?

Study the storefront
02

Look for ad evidence

Explore apps with direct store-link matches. Compare their hooks and formats without assuming the same approach works here.

Browse observed advertisers
03

Separate demand from paid growth

Store rankings and revenue estimates describe market context. They do not establish ad spend, conversions or ROAS.

Review the market context

02 / Storefront & product

Where the click lands.

Study the product story and store experience behind the acquisition funnel.

Screenshots

Harry's LapTimer Rookie screenshot 1Harry's LapTimer Rookie screenshot 2Harry's LapTimer Rookie screenshot 3Harry's LapTimer Rookie screenshot 4Harry's LapTimer Rookie screenshot 5Harry's LapTimer Rookie screenshot 6Harry's LapTimer Rookie screenshot 7Harry's LapTimer Rookie screenshot 8

03 / Market context

The business behind the app.

Keep revenue, downloads and store rankings separate from advertising performance.

How Much Does Harry's LapTimer Rookie Make?

Monthly Revenue
$1.0K
Annualized estimate
$12.0K
Per Download
$1.00

Platform Performance

🍎iOS
Revenue
$1.0K
Downloads
1.0K
Rating
3.3 (36)

Rating Distribution

3.3
★★★☆☆
36 reviews
5
25%
4
8%
3
17%
2
11%
1
39%

Top Countries

🇺🇸 US🇩🇪 DE🇬🇧 GB
Reviews (3)
☆☆☆☆mccluure2/27/2025
Finicky, legacy, doesn’t work well

This app is not easy to use and even if you learn how to use it, it doesn’t function properly most of the time. I did 50 laps at Laguna Seca last weekend with my phone connected to my GoPro and my OBDLinkMX+ and neither the GoPro footage nor the OBD data was recorded for even a single lap. At the beginning of each session I carefully made sure everything was configured correctly, thinking “maybe it will work this time”, but no. This app does not work well at all. It is a legacy app that hasn’t been updated very well over time and is lacking in reliability/ease of use. I do not recommend wasting nearly $30 on it. If you are just looking to time your laps, the super basic version might be okay to use. Personally I wish I had listened to the reviews before wasting my money on this app. Do not make the same mistake I did.

★★★☆☆racebuck4/6/2022
Quit giving me times.

I loved it for the last 5 years but it quit registering. Never started going past start finish. No time.

☆☆☆☆Passanya3/7/2021
Terrible interface. It won’t work when you need it

Cons: - laps/race don’t start automatically. Nor is it obvious how to turn the race on. You have to go to the Race section, set up a driver, then the car, and then figure that the app will be waiting until you drive off. Extremely unintuitive. - finding your results is impossible. You have to go to the Analysis -> Lap Times, and locate a green dop next to the time (which indicates it’s you 🤦🏼‍♂️) - it gets worse, each time you go out for a new session, the Race needs to be manually triggered by setting the previous run as reference. - but what is the worst is the deception that a new session is recoding and working. You think you have triggered a new session and have put your phone away. Only to return to the pit to realize that app has silently produced some hidden alerts after you’ve triggered the new session and put the phone away! IMO this defeats the whole purpose. Pros: - when it does work the stats are well presented In summary, out of 5 sessions, I was only able to record 1. Terrible. Save your money.

Version History (123)
25.1.06/25/2026
25.0.15/14/2025
25.0.05/6/2025
24.9.16/30/2024
24.9.05/7/2024
24.8.26/30/2023
24.8.05/4/2023
24.7.111/18/2022
24.710/22/2022
24.6.37/27/2022
Available In (115 Countries)
🇩🇿 DZ🇦🇴 AO🇦🇿 AZ🇧🇧 BB🇧🇾 BY🇧🇲 BM🇧🇬 Bulgaria🇬🇭 GH🇰🇪 Kenya🇲🇬 MG🇳🇬 Nigeria🇴🇲 OM🇹🇳 TN🇺🇦 Ukraine🇺🇿 UZ🇺🇸 United States🇦🇺 Australia🇨🇦 Canada🇨🇳 China🇫🇷 France🇩🇪 Germany🇬🇧 United Kingdom🇮🇹 Italy🇯🇵 Japan🇰🇷 South Korea🇷🇺 Russia🇦🇷 Argentina🇦🇹 Austria🇧🇪 Belgium🇧🇷 Brazil🇨🇱 Chile🇨🇴 Colombia🇨🇷 CR🇭🇷 Croatia🇨🇿 Czech Republic🇩🇰 Denmark🇩🇴 DO🇪🇨 EC🇪🇬 Egypt🇸🇻 SV🇫🇮 Finland🇬🇷 Greece🇬🇹 GT🇭🇰 Hong Kong🇭🇺 Hungary🇮🇳 India🇮🇩 Indonesia🇮🇪 Ireland🇮🇱 Israel🇰🇿 KZ🇰🇼 KW🇱🇧 LB🇱🇹 Lithuania🇱🇺 LU🇲🇴 MO🇲🇾 Malaysia🇲🇽 Mexico🇳🇱 Netherlands🇳🇿 New Zealand🇳🇴 Norway🇵🇰 Pakistan🇵🇦 PA🇵🇪 Peru🇵🇭 Philippines🇵🇱 Poland🇵🇹 Portugal🇶🇦 QA🇷🇴 Romania🇸🇦 Saudi Arabia🇸🇬 Singapore🇸🇰 Slovakia🇸🇮 Slovenia🇿🇦 South Africa🇪🇸 Spain🇱🇰 LK🇸🇪 Sweden🇨🇭 Switzerland🇹🇼 Taiwan🇹🇭 Thailand🇹🇷 Turkey🇦🇪 UAE🇺🇾 UY🇻🇪 VE🇻🇳 Vietnam🇧🇴 BO🇪🇪 Estonia🇱🇻 Latvia🇳🇮 NI🇵🇾 PY🇰🇭 KH🇦🇫 AF🇬🇪 GE🇮🇶 IQ🇱🇾 LY🇲🇦 MA🇲🇿 MZ🇲🇲 MM🇾🇪 YE🇧🇭 BH🇨🇾 CY🇲🇹 MT🇷🇸 RS🇧🇯 BJ🇧🇫 BF🇨🇲 CM🇨🇬 CG🇨🇮 CI🇯🇴 JO🇱🇦 LA🇲🇱 ML🇸🇳 SN🇹🇿 TZ🇺🇬 UG🇿🇲 ZM🇿🇼 ZW
Supported Languages (7)
EnglishFrenchGermanItalianJapaneseChineseSpanish
App Details

Harry's LapTimer is the advanced tool for car enthusiast. It records all types of sensor data provided by your iPhone/iPod/iPad (or external sensors),...

iOS App ID
307688598
Content Rating
4+
Min OS
12.0
Size
80.1 MB
In-App Purchases
Yes
Publisher
Harald Schlangmann
Ge

In-App Purchases (2)

NamePriceType
Grand Prix Upgrade$9.99One-time
Petrolhead Upgrade$12.99One-time