65
BU Score
Solid
Electromagnetic EMF Detector
✍️ bumetric analysis
“
Electromagnetic EMF Detector is an iOS app from Jose Bello in the Utilities category, currently rated 4.4★ across 210 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Our BU Score puts it at 65: Solid (established niche player). For a Utilities app, that means established niche player.
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 7 of 7 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 | |
| 5 starREVIEW | +$1,800 | |
| Mature app (10y old)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| annoying adsREVIEW | −$1,100 | |
| Good rating (4.4★)METRIC | +$800 | |
| Early-stage install base (210 ratings)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.
💚Sentiment Over Time↑ green = positive · ↓ red = negative
Aug 24
Sep 24
Dec 24
Feb 25
Apr 25
Nov 25
⭐ 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 →💾 61 MB🔞 4+📱 iOS 9.0+🔖 v5.4🔄 updated 4y ago🌐 EN, ZH, ZH📂 Utilities💰 Paid🚀 Launched 2015 (10y old)
📝 About this app
This app is intended for entertainment purposes only and does not provide true electromagnetic and electrosmog detector functionality.
Track magnetic fields near you. A warning beep will be activated to warn you.
The app detects ferromagnetic metals using the iPhone's built-in compass feature. Also works as Electrosmog (EMP) detector.
Detect many kinds of home appliances that create radio-frequency EMF. For example:plugs,cell phones,routers, baby monitors, doorbells, intercom systems,night alarm clocks, electronic appliances , electrical wire, antennas.
You can check the limit allowed in the "Radio-Frequency Guidelines - for continuous and prolonged exposure" in the instructions button of this app.
The higher measures of magnetic fields are stored. Even the time when the measure was taken, so you can locate the source of magnetic emission.
Note: This app will not work on an iPod Touch, since it does not have a compass hardware.
+++ FEATURES:
-Track high magnetic fields and when has it been measured.
-Table guide "Radio-Frequency Guidelines - for continuous and prolonged exposure".
-Warning beep near focus emissions.
-Detect the strength of Magnetic force fields on all three axis’s (x,y,z).
-Magnetic force is calculated in microteslas ( µ T )
-Record your readings with a time & date stamp of each event.
-Store until 100 records.
-Send measures by email.
If you have any issues to report or suggestions to make, please email the device you’re using, iOS version, and a detailed description of the problem to bellostudios@gmail.com
Track magnetic fields near you. A warning beep will be activated to warn you.
The app detects ferromagnetic metals using the iPhone's built-in compass feature. Also works as Electrosmog (EMP) detector.
Detect many kinds of home appliances that create radio-frequency EMF. For example:plugs,cell phones,routers, baby monitors, doorbells, intercom systems,night alarm clocks, electronic appliances , electrical wire, antennas.
You can check the limit allowed in the "Radio-Frequency Guidelines - for continuous and prolonged exposure" in the instructions button of this app.
The higher measures of magnetic fields are stored. Even the time when the measure was taken, so you can locate the source of magnetic emission.
Note: This app will not work on an iPod Touch, since it does not have a compass hardware.
+++ FEATURES:
-Track high magnetic fields and when has it been measured.
-Table guide "Radio-Frequency Guidelines - for continuous and prolonged exposure".
-Warning beep near focus emissions.
-Detect the strength of Magnetic force fields on all three axis’s (x,y,z).
-Magnetic force is calculated in microteslas ( µ T )
-Record your readings with a time & date stamp of each event.
-Store until 100 records.
-Send measures by email.
If you have any issues to report or suggestions to make, please email the device you’re using, iOS version, and a detailed description of the problem to bellostudios@gmail.com
🆕 What's New · v5.4
Description changes and the accuracy has been improved.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Electromagnetic EMF Detector
- Developer
- Jose Bello
- Bundle ID
- com.bellostudios.electromagnetic
- App Store URL
- Open in App Store
- Category
- Utilities
- Content rating
- 4+
- Languages
- EN, ZH, ZH
Company
- Website
- www.crearapp.com
- 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
- $12.1K/mo
- Top-grossing rank
- Outside top 100 in US Utilities
- 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
- Not found
- Press / News
- Not found
Contacts & Socials
- Socials
- Not found
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- Not found
⭐Recent App Store Reviews49 latest · avg 3.94★ · 51.0% 5★ · 14.3% 1★
5★25 (51%)
4★12 (24%)
3★3 (6%)
2★2 (4%)
1★7 (14%)
+0 ratings/week
Praise: great ×10 awesome ×4 recommend ×2 amazing ×2 love ×1Complaints: worst ×2 terrible ×1 refund ×1 expensive ×1
Top positive
★★★★★ Safety
This is a great monitor to have without having to buy the expensive monitors from online.…
★★★★★ Seems to work
Just installed it and tested it out. Picking up areas I thought may have high EMF and I was right.…
Top negative
★☆☆☆☆ $3.00 not 2.00
They lie. You will pay $3.00 for this app. The time for a trial, for me, after I payed the $1.99 was about 30 seconds. Kept asking if I was enjoying app. So NO!!! Not enjoying app. Then to get rid of adds and to actually use the…
★☆☆☆☆ Garbage app
Does not work…
📈Ratings growth210 ratings+53% lifetimeShow 3-year history estimate ▾
Tracked (60 weeks) Pre-tracking estimate (36 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.
More by Jose Bello
View all →
Full revenue analysis
Read the article-style breakdown for Electromagnetic EMF Detector: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.