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26
BU Score
Niche

Harry's Camper

2.3 ✍️ Editor
✍️ bumetric analysis

Harry's Camper is an iOS app from Harald Schlangmann in the Travel category, currently rated 2.3★ across 3 ratings. Initial signal reads as mostly critical sentiment so far: users flag rough edges and unmet expectations.

Our BU Score puts it at 26: Niche (micro-niche or pre-traction stage). For a Travel app, that means micro-niche or pre-traction stage.

Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.

📊 Performance Tracking LIVE

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Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
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since first record
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💰 Forecast Revenue / mo

MODEL
Revenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 5 of 5 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Paid app ($0.00)METRIC
+$2,800
Below-average rating (2.3★)METRIC
−$1,500
Mature app (10y old)METRIC
+$1,500
Localized (8 languages)METRIC
+$600
Pre-traction phase (3 ratings)METRIC
−$300
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →
💾 70 MB🔞 4+📱 iOS 12.0+🔖 v25.0.1🔄 updated 1y ago🌐 EN, FR, DE, IT, JA +3📂 Travel💰 Paid🚀 Launched 2015 (10y old)

📝 About this app

Harry’s Heavy Duty - Camper Edition is the professional tool for all drivers of heavy vehicles, towing trailers, and campers utilizing motorhomes and caravans. It is focused on technical oriented drivers who want to know what is going on. It comes with a wealth of tools, calculations and displays all types of information elegantly and intuitively.

The feature set is huge, here are some highlights:

‣ The app collects data from a large number of sensors available
‣ Intelligent real time views of all information available - not just raw data but smart insights
‣ Basic functionality is available using your iPhone’s GPS and accelerometer
‣ Add external OBD, GPS and environmental sensors to get more insights
‣ Weather station using external sources and environmental sensors
‣ Complete documentation of truck, TV and trailer allowing analysis such as a tow rating
‣ Parking and leveling assistants support standard operations (including Apple Watch support)
‣ Supports action cams for rear view (GoPro HERO3/3+, Sony)
‣ A full featured road book creates beautiful trip reports automatically
‣ Predefined and custom checklists help you remember actions (e.g. camp ground departure)
‣ Add waypoint sets from your database or add your own

The app supports a huge set of external engine and GPS sensors as well as the inexpensive TI SensorTag for local environmental data. For details, please check our compatibility page at http://www.gps-laptimer.de/Compatibility.html Data collected is displayed in purpose built views focusing on what really matters. The app is aware of levels and thresholds and will warn you if anything is wrong.

The leveling assistant makes it extremely convenient to level your caravan or motorhome. Leveling is measure using either the iPhone or a TI SensorTag. The measurements of change for the hitch or the sides is given in inches / centimeters and displayed using an Apple Watch or using the phone itself. Leveling instruction are spoken.

The road book included records trips automatically - even with the app in background. Other than common trackers, data is kept private and is stored on your phone only. For trips recorded, not only the route but daily distances, stations you stayed overnight and dates and other information is automatically derived. It can be viewed in the app itself or be exported to the Google Earth app and desktop program for detailed analysis and fly overs. Please find samples and more information on https://www.facebook.com/harrysheavyduty

🆕 What's New · v25.0.1

- redesigned CarPlay startup
- fixed a bug crashing LapTimer when started with CarPlay connected
- some minor interface changes and fixes
- switched to Inches for very precise accuracy displays

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
Harry's Camper
Developer
Harald Schlangmann
Bundle ID
com.harrys.HeavyDutyCamper
App Store URL
Open in App Store
Category
Travel
Content rating
4+
Languages
EN, FR, DE, IT, JA, ZH, ES, ZH

Company

Website
www.gps-laptimer.de
Tagline
Not found
Description
Not found
Founded
Not found
HQ / Address
Not found
Employees
Not found
Logo
Not found

Revenue

Verified revenue / mo
Not found
AI revenue estimate / mo
Not found
AI annual estimate
Not found
ML model estimate / mo
$86/mo
Top-grossing rank
Outside top 100 in US Travel
All-time revenue
Not found
Pricing
Not found

Founder

Name
Not found
X / Twitter
Not found
LinkedIn
Not found
GitHub
Not found
X followers
Not found
Public statements
Not found

Funding

Total raised
Not found
Last round
Not found
Investors
Not found
Crunchbase
Not found
AngelList
Not found

Press & Links

Articles found
Not found
Listed on
Not found
Blog
Not found
Press / News
Not found

Contacts & Socials

Socials
Not found
Email
Not found
Phone
Not found
Contact page
Not found
About page
Not found
📈Ratings growth3 ratings+200% lifetimeShow 3-year history estimate ▾Jul 2018Nov 2024May 2026
Tracked (3 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.

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Full revenue analysis
Read the article-style breakdown for Harry's Camper: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
Read deep-dive →