Trofii Racing vs EMF Detector
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Trofii Racing
This social drag racing app allows drivers to time their runs with GPS-powered precision, share their performance, and compete on global leaderboards. It also features a vehicle garage to track modifications and built-in tools for racers.
- GPS-powered 0-60, 1/8, and 1/4 mile timing
- Social racing feed to share runs and times
- Global and class-based leaderboards
- Vehicle garage to track mods and specs
- Density altitude calculator
- Horsepower estimator
- 1/4 mile ET predictor
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Trofii Racing is the social drag racing app built for every driver. From weekend warriors to serious competitors. Whether you're chasing your personal best or going head-to-head with racers around the world, Trofii gives you the tools to race, share, and compete. Remote Callouts: Challenge anyone, anywhere. Challenge racers across the country or around the world. Both run at your own location, times sync and compare. Settle the score without being in the same place. GPS-Powered Timing: Connect your Dragy or compatible GPS device for precision 0-60, 1/8 mile, and 1/4 mile timing. Get accurate, consistent data every single run. Social Racing Feed: Share your runs, times, and see what the community is running. Follow your favorite drivers all in a feed built around the racing lifestyle. Leaderboards & Competitions: Compete in global and class based leaderboards. See how your vehicle stacks up against builds all over the globe. Vehicle Garage: Build out your garage with your vehicles, mods, and specs. Your profile tells the story of your build… every upgrade, every run, every trophy. Built-In Racing Tools: Density altitude calculator, horsepower estimator, 1/4 mile ET predictor, E85 station finder and more… everything a serious racer needs, built right in. Built for the Community: Trofii Racing isn't just a timing app it's where automotive enthusiasts live. Connect with drivers who share your passion, find local competition, and track your progress as you push your build further. Download Trofi Racing and start earning your trophies. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
EMF Detector
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Four new tools join the meter in 1.1: Radar, Metal Finder, Presence Meter and SLS-Style Camera. Every number on screen comes from your iPhone's own sensors. The magnetometer reading is real. What it means is up to you. THE METER: EMF Detector reads your iPhone's magnetometer and shows the live magnetic field in µT or mG. Each start calibrates a baseline for the room and tells you how steady it was. Readings are classed Calm, Weak, Potential, High or Extreme. - Meter | Graph switch; live 30-second graph with X, Y and Z toggles - Sensitivity presets, haptic and beep feedback - Record Mode: a clean full-screen view for filming - Siri and Spotlight shortcut into the meter THE TOOLS TAB (all four free to open): - Radar: a live compass radar driven by the magnetometer. When the field reaches Potential or above, a blip appears in the direction your iPhone faces. - Metal Finder: shows how far the field moves from its baseline, with a threshold, beep and vibration. It responds to magnets and magnetic metals such as iron and steel, not to gold or aluminium. - Presence Meter: shows how much your iPhone itself moves, from its accelerometer. Set it down and it reacts to bumps and vibration. - SLS-Style Camera: a live rear-camera view. Apple's Vision framework looks for human body shapes on your iPhone and draws a stick figure only where it finds one. People, mannequins, photos and TVs can show figures; an empty room shows none. Your live EMF reading stays on screen. RECORDING: Tap Record and walk the space; each spike is marked as it happens. Tap Stop for the timeline, spikes, baseline and peaks. Compare any two sessions side by side. FREE AND PRO: Free: the meter, graph, Record Mode, recording (3 most recent sessions kept), session detail, compare and all four tools. Pro adds: no ads; unlimited history; CSV export; radar skins (colour themes: Thermal, Night Vision, Vintage); Presence Meter recording, sensitivity and sound alert; SLS-Style Camera extras: Depth (LiDAR) on iPhones with LiDAR, a night-vision-style filter and photo capture. Without Pro, a rewarded ad unlocks one session's export while its screen stays open, or a time-limited trial of the Pro tool extras. The trial does not remove ads or unlock history or export. SUBSCRIPTIONS: EMF Detector Pro: Weekly $2.99 (3-day free trial), Monthly $4.99 (3-day free trial), or Lifetime $24.99, a one-time purchase. Prices are in US dollars; the App Store shows your local price. Free trials are for eligible new subscribers. Payment is charged to your Apple Account. Subscriptions renew automatically until cancelled. To cancel: Settings > your name > Subscriptions > EMF Detector Pro > Cancel Subscription. To avoid renewal after a free trial, cancel at least 24 hours before it ends. ADS: Free users see Google AdMob ads: a native card labelled "Ad" on the meter and tool screens, and occasional full-screen ads after you stop a recording, when you leave a tool, and when you go back from a saved session, a comparison or the instructions. No ads appear on their own in Record Mode or while recording. ENTERTAINMENT NOTICE: The magnetometer reading is real. What it means is up to you. Magnetic fields change near wiring, appliances, magnets, metal and other phones, and this app cannot tell those apart from anything else. It is made for paranormal-style entertainment and does not claim that a change in the field means a ghost is present. PRIVACY: No account. The camera works only in the SLS-Style Camera tool; images are processed on your iPhone and nothing is stored or sent unless you share or save a photo. Sharing usage data (Google Analytics for Firebase) is your choice, changeable in Settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ashaquavision.com/privacy-policy/emf-detector-ios/ iPhone only. Requires a device with a magnetometer.
Screenshots
Verdict
The clearest difference is ads: Trofii Racing at none against EMF Detector's shown. Trofii Racing also leads on update cadence (every 4 days vs every 3 weeks) and device support (3 vs 1). On price and in-app purchases 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. Trofii Racing sells 10 in-app purchases, starting at $6.99 per month and EMF Detector sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Trofii Racing ships an update every 4 days, EMF Detector every 3 weeks. The most recent releases landed on October 20, 2026 and October 7, 2026 respectively.
| Parameter | Trofii Racing | EMF Detector |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (50 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 50 — better | — |
| Update frequency | Every 4 days — better | Every 3 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 109 MB | 25 MB |
| Age rating | 12+ | 9+ |
| Developer | Trofii LLC | Ashir Mehmood |
In-app purchases
Trofii Racing
- Trofii Premium7 Days trial$6.991 Month
- Trofii Premium7 Days trial$7.991 Month
- Trofii Premium7 Days trial$49.991 Year
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- Trofii Premium7 Days trial$59.991 Year
- Density Altitude$0.99
- Can I Take 'Em?$0.99
- 1/4 Mile ET$0.99
Show 3 moreShow fewer
- 60-130 MPH$0.99
- Roll Race Predictor$0.99
- All Calculators Pack$14.99
EMF Detector
- EMF Detector Pro$4.99
Questions
Is Trofii Racing free?
Is EMF Detector free?
Do Trofii Racing or EMF Detector have ads?
Which is updated more often, Trofii Racing or EMF Detector?
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