0
BU Score
Niche
Fault Finding & Multimeters
✍️ bumetric analysis
“
Fault Finding & Multimeters is an iOS app from Mr Combi Training in the Productivity category, currently rated — across few ratings. Initial signal reads as no scraped reviews yet: judgment based on metadata only.
Our BU Score puts it at 0: Niche (micro-niche or pre-traction stage). For a Productivity 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
0
since first record
Range:
💰 Forecast Revenue / mo
MODELRevenue 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 3 of 3 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 | |
| Mature app (9y old)METRIC | +$1,500 | |
| Single-language (English only)METRIC | −$400 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 37 MB🔞 4+📱 iOS 9.0+🔖 v1.7🔄 updated 7y ago🌐 EN📂 Productivity💰 Paid🚀 Launched 2017 (9y old)
📝 About this app
We recently re-filmed and updated our hugely successful Fault Finding DVD and now you can get the latest version in high definition on your iPhone and iPad.
You can get access to all 21 chapters, totalling 77 minutes, showing you all about multimeters, how to carry out the electrical safety tests in full, how to test stats, fans, sensors and pumps, about diverters valves, expansion vessels, the sequence of operation and more.
Suitable for new entrants, those moving from installing to repairs and existing breakdown engineers. Learn at your own pace.
The chapters:
1. Testing Equipment
2. Multimeter Settings
3. Electrical Safety Tests
4. Earth Continuity Test
5. Short Circuit Test
6. Resistance to Earth Test
7. Polarity Test
8. Fault Isolation Procedure
9. Sequence of Operation
10. Pumps
11. Testing Switches
12. Water Pressure Switches
13. Flow Switches
14. Air Pressure Switches
15. Fans
16. Stats & Sensors
17. Diverter Valves
18. Domestic Heat Exchangers
19. Expansion Vessels
20. Water Hammer
21. Airing Cupboards
You can get access to all 21 chapters, totalling 77 minutes, showing you all about multimeters, how to carry out the electrical safety tests in full, how to test stats, fans, sensors and pumps, about diverters valves, expansion vessels, the sequence of operation and more.
Suitable for new entrants, those moving from installing to repairs and existing breakdown engineers. Learn at your own pace.
The chapters:
1. Testing Equipment
2. Multimeter Settings
3. Electrical Safety Tests
4. Earth Continuity Test
5. Short Circuit Test
6. Resistance to Earth Test
7. Polarity Test
8. Fault Isolation Procedure
9. Sequence of Operation
10. Pumps
11. Testing Switches
12. Water Pressure Switches
13. Flow Switches
14. Air Pressure Switches
15. Fans
16. Stats & Sensors
17. Diverter Valves
18. Domestic Heat Exchangers
19. Expansion Vessels
20. Water Hammer
21. Airing Cupboards
🆕 What's New · v1.7
We've made some small changes under the cover.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Fault Finding & Multimeters
- Developer
- Mr Combi Training
- Bundle ID
- com.mrcombi.faultfinding
- App Store URL
- Open in App Store
- Category
- Productivity
- Content rating
- 4+
- Languages
- EN
Company
- Website
- Not found
- Tagline
- Today
- Description
- Find apps and games for iPhone, iPad, Mac, and more on the App Store.
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- OG image
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $459/mo
- Top-grossing rank
- Outside top 100 in US Productivity
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- Not found
- 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
- https://apps.apple.com/us/app/letterloop-group-newsletters/id6468623700
- Press / News
- Not found
Contacts & Socials
- Socials
- Not found
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- https://apps.apple.com/us/iphone/story/id1895870717
🌍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.
Full revenue analysis
Read the article-style breakdown for Fault Finding & Multimeters: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.