Metal Detector Simulator Prank vs Grumpy Old Tech Robot Control
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Metal Detector Simulator Prank
Transform your phone into a simulated metal detector for fun. Prank friends by pretending to find metal objects. Adjust signal strength with finger movements for interactive play.
- Simulated metal detection
- Prank your friends
- Adjustable signal strength
- Interactive finger controls
- Improvise and play games
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Turn your device into a metal detector with a this app! Prank your friends! Find metal in their heads or another places. Move your finger up or down to change the degree of the signal. Improvise and play other games! Disclaimer: This application is only a prank trick for fun. It's not a real metal detector.
Grumpy Old Tech Robot Control
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This App is used to control the Grumpy Old Tech Self Balancing Robot. Check out Grumpy's website for instructions on how to build the robot and view his YouTube videos for an explanation of how it all works. If you have any questions leave a comment on how Facebook or Youtube channel. Good luck with your build!!!
Screenshots
Verdict
The clearest difference is ads: Grumpy Old Tech Robot Control at none against Metal Detector Simulator Prank's shown. Grumpy Old Tech Robot Control also leads on iOS requirement (10.3 vs 12.0). Metal Detector Simulator Prank's advantage is update cadence (every 4 months vs every 9 months). On price, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
Metal Detector Simulator Prank ships an update every 4 months, Grumpy Old Tech Robot Control every 9 months. The most recent releases landed on September 17, 2026 and September 10, 2026 respectively.
| Parameter | Metal Detector Simulator Prank | Grumpy Old Tech Robot Control |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (59 ratings) — better | — |
| Positive reviews | 58.8% of reviews | — |
| Number of ratings | 59 — better | — |
| Update frequency | Every 4 months — better | Every 9 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 10.3 — better |
| Further details — not scored | ||
| Size | 25 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Denis Batishchev | Inzant Australia PTY LTD |
In-app purchases
Metal Detector Simulator Prank
No in-app purchases
Grumpy Old Tech Robot Control
No in-app purchases
Questions
Is Metal Detector Simulator Prank free?
Is Grumpy Old Tech Robot Control free?
Do Metal Detector Simulator Prank or Grumpy Old Tech Robot Control have ads?
Which is updated more often, Metal Detector Simulator Prank or Grumpy Old Tech Robot Control?
Other comparisons
