Comparison

Metal Detector and Spy Camera vs CO2 sensor

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

Head to head
About

Metal Detector and Spy Camera

This app acts as a versatile detection toolkit, helping you find hidden metal objects, magnetic fields, and potential spy cameras. It also includes tools to check your WiFi network for unknown devices and scan your email for data breaches, enhancing your safety and aiding home improvement projects.

Highlights
  • Metal detector
  • Magnetic field detector
  • WiFi device scanner
  • Hidden camera finder
  • Email breach checker
  • Stud finder
Features
Read full description

Unlock the power of a handy detection toolkit with Metal and Spy Camera Detector, an all-in-one mobile app designed to enhance your safety and assist in everyday tasks. This versatile tool is your go-to companion for privacy concerns, home improvements, and much more. Our app equips you with a comprehensive suite of powerful tools to find metals, magnetic fields, hidden cameras, and other critical elements in your surroundings. Key Features: Metal Detector: Easily locate hidden metal objects. Ideal for finding screws, nails, and other metallic items in walls or beneath surfaces, making it perfect for DIY enthusiasts and professionals alike. Magnetic Detector: Tap into magnetic field detection to identify unusual magnetic activity that could indicate the presence of spy devices or other hidden objects. WiFi Device Detector: Secure your personal WiFi network by identifying unknown devices connected to your network. Ensure that only trusted devices have access and maintain your privacy. Hidden Camera Detector: Traveling or worried about your privacy? Use your device’s camera to scan for hidden cameras in dressing rooms, hotels, or bathrooms. Stay one step ahead and protect your privacy wherever you go. Mail Checker: Keep your digital identity secure with our Mail Checker tool. Check if your email address has been compromised in a data breach, and take immediate steps to secure your accounts. Stud Finder: Effortlessly locate hidden studs in your walls, essential for any construction or home renovation project. Perfect for ensuring secure placements for shelves, frames, and other fixtures. User-Friendly Interface: Designed with simplicity and ease of use in mind, our app offers intuitive navigation and quick access to all tools. Whether you are tech-savvy or a beginner, you'll find Metal and Spy Camera Detector straightforward and effective. Subscribe to access premium app features; subscription details are as follows: Duration: weekly. Your payment will be charged to your iTunes Account as soon as you confirm your purchase. You can manage your subscriptions and turn off auto-renewal from your Account Settings after the purchase. Your subscription will renew automatically, unless you turn off auto-renew at least 24 hours before the end of the current period. The cost of renewal will be charged to your account in the 24 hours prior to the end of the current period. When canceling a subscription, your subscription will stay active until the end of the period. Auto-renewal will be disabled, but the current subscription will not be refunded. Any unused portion of a free trial period, if offered, will be forfeited when purchasing a subscription. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

CO2 sensor

Monitor CO2, temperature, and humidity levels in real-time using a Bluetooth sensor. Save readings with location data and sync them across Apple devices via iCloud. View historical data on a map.

Highlights
  • Real-time CO2, temperature, and humidity readings
  • Bluetooth sensor integration
  • Save readings with location
  • iCloud sync across devices
  • Map view of saved readings
  • Open source code available
Features
Read full description

Read CO2, temperature, and humidity from your Bluetooth Sensirion SCD-41 sensor in realtime. Save your readings with your current location and have it sync across your devices via iCloud. See previously saved readings with a map of the location that those readings were taken. Works across iPhone, iPad, and macOS devices. Open source code: https://github.com/sighmon/ios-ble-co2-sensor

Screenshots

Metal Detector and Spy Camera4 screens
CO2 sensor4 screens

Verdict

The call

The clearest difference is rating: Metal Detector and Spy Camera at 4.2 against CO2 sensor's 3.4. Metal Detector and Spy Camera also leads on ratings volume (11K vs 7) and update cadence (every 5 months vs every 12 months). CO2 sensor's advantage is in-app purchases (none vs 6) and device support (4 vs 2). On price and ads 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. Metal Detector and Spy Camera sells 4 in-app purchases, starting at $4.99 per 7 days. CO2 sensor asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Metal Detector and Spy Camera holds the better App Store score, 4.2 against 3.4. That said, the two scores are not equally well evidenced: Metal Detector and Spy Camera has 11K ratings behind it against 7, so its average is the more settled of the two.

UpkeepUpdate frequency

Metal Detector and Spy Camera ships an update every 5 months, CO2 sensor every 12 months. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

Scorecard7 real differences · 3 level
Metal Detector and Spy Camera versus CO2 sensor: the parameters behind the verdict, then further details
ParameterMetal Detector and Spy CameraCO2 sensor
PriceFreeFree
Rating4.2 (11K ratings) — better3.4 (7 ratings)
Positive reviews57.0% of reviews—
Number of ratings11K — better7
Update frequencyEvery 5 months — betterEvery 12 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPodiPhone, iPad, iPod, Mac — better
Requires iOS13.0 — better15.6
Further details — not scored
Size80 MB0 MB
Age rating4+4+
DeveloperGiorgia De Giorgisighmon

Customer experience

Metal Detector and Spy Camera

All ratings10,685 ratings
Positive79.2%
Neutral5.2%
Negative15.6%
Written reviews788 reviews
Positive57.0%
Neutral4.1%
Negative39.0%

CO2 sensor

All ratings7 ratings
Positive57.1%
Neutral28.6%
Negative14.3%

Bugs and requests

Metal Detector and Spy Camera

Reported bugs

3 issues
  • Crashes frequently
  • Sensitivity issues
  • Inconsistent performance

Requested features

4 requests
  • More detailed instructions on how to use
  • Ability to detect more types of metals
  • Improved sensitivity and accuracy
  • Compatibility with more phone models

CO2 sensor

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Metal Detector and Spy Camera

Subscriptions4
  • Weekly premium2 variants$4.997 Days
  • Weekly premium7 Days trial2 variants$4.997 Days
  • Yearly premium7 Days trial$9.991 Year
Show 1 more
  • Yearly premium$9.991 Year
None

CO2 sensor

No in-app purchases

Questions

Is Metal Detector and Spy Camera free?
Metal Detector and Spy Camera is free to download, with in-app purchases available.
Is CO2 sensor free?
CO2 sensor is free to download, with no in-app purchases.
Which has better reviews, Metal Detector and Spy Camera or CO2 sensor?
Metal Detector and Spy Camera is rated higher. Metal Detector and Spy Camera averages 4.2 out of 5 from 11K ratings, while CO2 sensor averages 3.4 from 7 ratings.
Do Metal Detector and Spy Camera or CO2 sensor have ads?
Neither Metal Detector and Spy Camera nor CO2 sensor shows ads.
Which is updated more often, Metal Detector and Spy Camera or CO2 sensor?
Metal Detector and Spy Camera ships an update every 5 months, and CO2 sensor every 12 months. Most recently, Metal Detector and Spy Camera was updated on October 28, 2026 and CO2 sensor on October 24, 2026.

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