Random Sound Recorder vs TeslaVision EMF Detector
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Random Sound Recorder
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‘Random Sound Recorder’ serves as a satellite application to ‘Acaan Trainer’, ‘Stack Trainer’, ‘Twice as Hard Trainer’, ‘Serial Sum Trainer’, and ‘Random Input’ which represent the single most unified set of technical learning tools for close-up magicians. These apps are available by this developer. ‘Random Sound Recorder’ allows to record sound files in caf-format (Apple Core Audio Format, caf) according to the four suits, the ace, the three court cards and values from 2 to 9. Also all numbers can be recorded to allow for the 52 positions in a deck. The created caf-files serve as sound files for the above mentioned apps. Once recorded, the sound files can be moved to their final destination in the other apps' documents folder.
TeslaVision EMF Detector
Detect, measure, and visualize ambient electromagnetic fields in real-time. This professional-grade tool offers detailed analysis, data export, and customizable settings for monitoring your electromagnetic environment.
- Real-time EMF measurement
- 2D and 3D EMF visualization
- Raw EMF data export
- Customizable EMF calibration
- Adjustable EMF sensitivity
- Record and analyze EMF sessions
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Experience unmatched EMF radiation detection with © TeslaVision. We are confident you will not find a better EMF meter on the App Store. © TeslaVision is a professional, easy-to-use, and powerful EMF radiation detection meter. © TeslaVision enables you to detect, measure, and visualize the ambient electromagnetic field level in real-time. Furthermore, © TeslaVision enables you to effortlessly detect, monitor, record, and export your overall level of EMF exposure. © TeslaVision is the perfect app to detect, monitor, and visualize your electromagnetic environment. Key Features: • High-quality, professional grade software • Real-time EMF measurement (0-3000+ µT) • 100Hz EMF Data resolution capability • Supports raw, unfiltered EMF data for advanced analysis • Export raw recorded EMF session data • 2D and 3D EMF visualization • Real-time 3D plotting of EMF orientation • Metrics for minimum, maximum, and average EMF exposure • Raw, calibrated, and scaled EMF data • Color coded representation of EMF strength • Customizable EMF calibration • Adjustable EMF sensitivity • Record, analyze, and share EMF session data • Intuitive, professional, and easy-to-use design • Comprehensive help section • Easy access to customer support • Lifetime free updates Frustration Free • No ads • No subscriptions • No in-app purchases • No gimmicks • World-class customer support If you have any questions about this app, please contact us at: JedaSoftwareSystemsHelp@gmail.com
Screenshots
Verdict
The clearest difference is price: Random Sound Recorder at Free against TeslaVision EMF Detector's $4.99. Random Sound Recorder also leads on device support (3 vs 1) and iOS requirement (11.0 vs 18.0). TeslaVision EMF Detector's advantage is chart position (#179 vs unranked). On update cadence, ads 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
Random Sound Recorder is free to download; TeslaVision EMF Detector costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Random Sound Recorder ships an update every 9 months, TeslaVision EMF Detector every 13 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Random Sound Recorder | TeslaVision EMF Detector |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | — | 4.4 (10 ratings) — better |
| Positive reviews | — | 33.3% of reviews |
| Number of ratings | — | 10 — better |
| Update frequency | Every 9 months — better | Every 13 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Best chart rank | — | #179 — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 0 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Ralph Cos | Michael Weber |
In-app purchases
Random Sound Recorder
No in-app purchases
TeslaVision EMF Detector
No in-app purchases
Questions
Is Random Sound Recorder free?
Is TeslaVision EMF Detector free?
Do Random Sound Recorder or TeslaVision EMF Detector have ads?
Which is updated more often, Random Sound Recorder or TeslaVision EMF Detector?
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