Comparison

GDO System™ vs Stud Finder & Metal Detector

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

GDO System™

Control your garage door opener remotely from any internet-connected location. This app allows for remote opening and closing, customizable alerts, and integration with various accessories like fans, speakers, and parking assist modules.

Highlights
  • Remote garage door monitoring and control
  • Open and close garage door remotely
  • Customizable door status alerts
  • Control variable speed fan
  • Bluetooth speaker functionality
  • Laser park assist integration
  • Electric cord reel control
Features
Read full description

Control your garage door opener from anywhere in the world with the Ryobi™ GDO System™. *** Note: Requires Ryobi GDO System hardware *** The Ryobi GDO System lets you control your garage door from anywhere in the world that you have internet access. With the flexibility of the plugin Module System™ you can add accessories like a garage fan, bluetooth speaker, electric cord reel, and laser park assist. You can even use your Ryobi One+™ battery for backup power to operate your garage door during power outages. - Monitor and control your garage door opener from anywhere you have an internet connection - Open and close the door remotely - Customizable alerts for when your garage door opens, closes, opens past a preset time or stays open too long. No more wondering if you closed the garage door. - Variable speed fan can be controlled from within the application - Bluetooth speaker for placing and receiving hands free calls or listening to your favorite music or podcasts - Laser park assist helps you park perfectly every time - Electric Cord reel, a convenient electrical outlet right in the center of the garage where you need it most Learn more about Ryobi GDO System and other Ryobi products at www.ryobitools.com.

About

Stud Finder & Metal Detector

Easily locate hidden ferrous metal objects like studs, screws, and nails behind various surfaces. This tool uses your phone's magnetic field sensor to provide accurate detection with visual, audio, and tactile alerts. It also offers detailed magnetic field data for advanced analysis.

Highlights
  • Detects ferrous metal objects
  • Analyzes magnetic field changes
  • Visual, audio, and tactile alerts
  • Displays magnetic field data (µT)
  • Measurement history
  • Sensor location guidance
Read full description

This app will help you find ferrous metal objects such as studs, screws, and nails hidden in or behind wood, drywall, OSB, plywood, plaster, etc. As you scan over a surface with your phone, a smart algorithm analyzes the smallest changes in the magnetic field and detects hidden ferrous objects with unprecedented accuracy. Intuitive visual, audio, and tactile indicators will notify you when a ferrous object is detected. In addition, the app displays the absolute value of the magnetic field in microtesla (µT), the dynamics of change, and the history of measurement for solving more complex problems. Tips and Tricks If your device has an external case with metal or magnetic elements, please remove it before using this app. You can further improve the detection accuracy by first determining the position of the magnetometer sensor inside of your phone. To do this, take a small metal object (for example, a screw) and slowly move along the back surface of your phone, continuously monitoring the absolute value indicator of the magnetic field. The sensor is located at the position with the maximum indicator value. Be careful not to touch and scratch the phone with the screw. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://n17dev.web.app/stud-finder-v2/policy.html

Screenshots

GDO System™3 screens
Stud Finder & Metal Detector4 screens

Verdict

The call

The clearest difference is rating: Stud Finder & Metal Detector at 4.3 against GDO System™'s 1.4. GDO System™'s advantage is in-app purchases (none vs 3) and update cadence (every 10 days vs every 2 months). On price, review sentiment, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Stud Finder & Metal Detector sells 3 in-app purchases, starting at $2.99 per month. GDO System™ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Stud Finder & Metal Detector holds the better App Store score, 4.3 against 1.4. Both are backed by a comparable volume of ratings — 1.3K and 360 respectively. Written reviews point the same way: 9% of GDO System™'s written reviews are positive against 17% of Stud Finder & Metal Detector's.

UpkeepUpdate frequency

GDO System™ ships an update every 10 days, Stud Finder & Metal Detector every 2 months. The most recent releases landed on November 4, 2026 and November 7, 2026 respectively.

Scorecard6 real differences · 4 level
GDO System™ versus Stud Finder & Metal Detector: the parameters behind the verdict, then further details
ParameterGDO System™Stud Finder & Metal Detector
PriceFreeFree
Rating1.4 (1.3K ratings)4.3 (360 ratings) — better
Positive reviews9.4% of reviews16.7% of reviews — better
Number of ratings1.3K — better360
Update frequencyEvery 10 days — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.1 — better14.0
Further details — not scored
Size45 MB12 MB
Age rating4+4+
DeveloperOne World Technologies, IncAndrey Ivankin

Customer experience

GDO System™

All ratings1,290 ratings
Positive6.5%
Neutral3.6%
Negative89.9%
Written reviews160 reviews
Positive9.4%
Neutral2.5%
Negative88.1%

Stud Finder & Metal Detector

All ratings359 ratings
Positive82.2%
Neutral4.5%
Negative13.4%
Written reviews12 reviews
Positive16.7%
Neutral8.3%
Negative75.0%

User reviews

GDO System™

From 1.3K App Store ratings

What we love

  • 🚀 Works as advertised
  • 🔒 Robust security features
  • 👍 Quiet and reliable opener
  • 🔋 Backup battery works well

Room to improve

  • 🐛 Buggy and unreliable app
  • 👎 App constantly crashes or logs users out
  • 👎 App has not been updated in years
  • 🔒 No way to override keypad lock from app
  • 👎 Delayed or no response from app commands

Stud Finder & Metal Detector

From 360 App Store ratings

What we love

  • 👍 Best stud finder among tested apps
  • 👍 Works as advertised
  • 👍 Able to find drywall screws
  • 👍 Sensitive with slow, continuous movement

Room to improve

  • 😞 Useless app
  • 😞 Cannot use it
  • 😞 Waste of time
  • 😞 Doesn't work
  • 😞 Not even close to working

Bugs and requests

GDO System™

Reported bugs

4 issues
  • App unable to connect to WiFi or GDO
  • App forgets login credentials
  • Inconsistent door status reporting
  • Camera and accessory connectivity issues

Requested features

4 requests
  • Integrate with smart home platforms (e.g., HomeKit)
  • Add multiple user support
  • Improve notification and status tracking
  • Provide better in-app troubleshooting and support

Stud Finder & Metal Detector

Reported bugs

2 issues
  • Ads appear at critical moments
  • Doesn't find anything

Requested features

2 requests
  • More of an x-ray view
  • Needs more work

In-app purchases

None

GDO System™

No in-app purchases

3 purchases

Stud Finder & Metal Detector

Subscriptions1
  • Premium Monthly Subscription3 Days trial$2.991 Month
One-time2
  • Stud Finder: Pro Version$3.99
  • Premium Lifetime Subscription$6.99

Questions

Is GDO System™ free?
GDO System™ is free to download, with no in-app purchases.
Is Stud Finder & Metal Detector free?
Stud Finder & Metal Detector is free to download, with in-app purchases available.
Which has better reviews, GDO System™ or Stud Finder & Metal Detector?
Stud Finder & Metal Detector is rated higher. GDO System™ averages 1.4 out of 5 from 1.3K ratings, while Stud Finder & Metal Detector averages 4.3 from 360 ratings.
Do GDO System™ or Stud Finder & Metal Detector have ads?
Neither GDO System™ nor Stud Finder & Metal Detector shows ads.
Which is updated more often, GDO System™ or Stud Finder & Metal Detector?
GDO System™ ships an update every 10 days, and Stud Finder & Metal Detector every 2 months. Most recently, GDO System™ was updated on November 4, 2026 and Stud Finder & Metal Detector on November 7, 2026.

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