Comparison

Aura Air vs Stud Finder®

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

Head to head
About

Aura Air

This app monitors and purifies indoor air quality using a four-stage process. It alerts users to detected hazards, provides solutions, and monitors outdoor air for a comprehensive view of air conditions.

Highlights
  • 4-stage air purification
  • Real-time air quality monitoring
  • Hazard detection and alerts
  • Indoor and outdoor air monitoring
  • Problem origin identification
  • Actionable solutions provided
Features
Read full description

Aura Air developed the world’s smartest air purification system, one that cleanses and disinfects indoor air through a unique 4 stage purification process while vigilantly monitoring its quality in real-time. When hazards are detected, Aura alerts you immediately, providing crucial intelligence as to the origin of the problem, solutions of how to rectify it, and alarms if immediate action or evacuation is required. While keeping you informed of the conditions inside your home, Aura also monitors outdoor air quality, providing you a holistic picture of today and what’s to come tomorrow.

About

Stud Finder®

Transform your iPhone into a stud finder using its magnetic sensor. Detect magnetic changes indicating screws or nails behind walls with a live graph and sound feedback. Pro version offers unlimited scanning and advanced features.

Highlights
  • Magnetic stud detection
  • Live signal gauge and graph
  • Sound and haptic feedback
  • Adjustable sensitivity (Pro)
  • Unlimited scanning (Pro)
  • Simple illustrated instructions
Features
Read full description

Find the right spot. Mount with confidence. Turn your iPhone into a handy magnetic stud finder. Use your device’s built-in magnetic sensor to locate magnetic changes that may indicate screws, nails, or other ferrous metal behind a wall. Follow the needle, watch the live graph, and hear stronger signals as you scan. Try Pro with a 3-day free trial on the Weekly plan for eligible new subscribers. FEATURES • Unlimited Scanning (Pro Required) Scan without measurement time limits or interruptions. • Live Signal Gauge & Graph (Pro Required) See magnetic changes through a responsive needle and a live graph with X, Y, and Z readings. • Adjustable Sensitivity (Pro Required for Scanning) Fine-tune the detector’s response to suit your surroundings. • Sound & Haptic Detection (Pro Required) Keep your attention on the wall. Faster beeps and firmer haptic feedback help you follow stronger signals. Turn both off whenever you prefer. • Simple, Illustrated Instructions Learn how to prepare the sensor, scan steadily, and look for signal peaks with a three-step guide. • Flexible Viewing (Pro Required for Scanning) Scan in portrait or landscape, with layouts adapted for iPhone and iPad. START WITH A FREE TRIAL Explore Pro with a 3-day free trial on the Weekly subscription, subject to eligibility. Weekly and Yearly plans are available. Pricing and trial availability are shown before purchase. Subscriptions renew automatically unless canceled before renewal through your App Store account settings. PLEASE NOTE Stud Finder detects magnetic field changes; it does not directly detect wood. Results depend on your device, distance, metal type, and nearby magnetic interference. Terms Of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Aura Air4 screens
Stud Finder®4 screens

Verdict

The call

The clearest difference is rating: Stud Finder® at 4.4 against Aura Air's 3.3. Stud Finder® also leads on ratings volume (23K vs 49). Aura Air's advantage is review sentiment (44% vs 8%) and in-app purchases (none vs 3). On price, update cadence, 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® sells 3 in-app purchases, starting at $1.99 per 7 days. Aura Air asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Stud Finder® holds the better App Store score, 4.4 against 3.3. That said, the two scores are not equally well evidenced: Stud Finder® has 23K ratings behind it against 49, so its average is the more settled of the two. Written reviews complicate that: 44% of Aura Air's written reviews are positive against 8% of Stud Finder®'s, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Aura Air ships an update every 4 weeks, Stud Finder® monthly. The most recent releases landed on November 3, 2026 and November 12, 2026 respectively.

Scorecard5 real differences · 5 level
Aura Air versus Stud Finder®: the parameters behind the verdict, then further details
ParameterAura AirStud Finder®
PriceFreeFree
Rating3.3 (49 ratings)4.4 (23K ratings) — better
Positive reviews43.6% of reviews — better7.8% of reviews
Number of ratings4923K — better
Update frequencyEvery 4 weeks — betterMonthly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size77 MB34 MB
Age rating12+4+
DeveloperGilad KalinaTue Nguyen Minh

Customer experience

Aura Air

All ratings49 ratings
Positive55.1%
Neutral8.2%
Negative36.7%
Written reviews39 reviews
Positive43.6%
Neutral10.3%
Negative46.2%

Stud Finder®

All ratings23,007 ratings
Positive84.0%
Neutral4.1%
Negative12.0%
Written reviews293 reviews
Positive7.8%
Neutral1.4%
Negative90.8%

User reviews

Aura Air

From 49 App Store ratings

What we love

  • 👍 Easy to use
  • 👍 Informative
  • 👍 Great product
  • 👍 Convenient
  • 👍 Excellent

Room to improve

  • 🐛 App doesn't work
  • 🐛 Cannot sign up
  • 🐛 Cannot register or log in
  • 🐛 App is dead
  • 🐛 No app connection

Stud Finder®

From 23K App Store ratings

What we love

  • 🚀 Accurately detects metal objects
  • 💡 Innovative use of phone sensors
  • 👍 Helpful for specific use cases

Room to improve

  • 🔒 Aggressive monetization with constant upgrade prompts
  • 🐛 Inconsistent and unreliable performance
  • 👎 Limited functionality in free version
  • 🕰️ Extremely short usage time before lockout

Bugs and requests

Aura Air

Reported bugs

15 issues
  • App not letting users sign up
  • App not connecting, showing errors
  • Cannot register or log in
  • App not booting up
  • Cannot connect device to app via text field or GPS
Show 10 more
  • App not letting users login
  • App crashing upon opening
  • App crashes when re-pairing device
  • Wi-Fi connection drops constantly
  • Filter stuck on high setting
  • App no longer opens
  • Filter uncontrollable with the app
  • Errors out while trying to add a new location
  • Outdoor numbers inconsistent with government reports
  • Annoying pop-up to rate the app on launch

Requested features

7 requests
  • App update to fix bugs
  • Physical buttons on the unit
  • Local use option before shutdown
  • Customer service contact
  • Improve outdoor AQI numbers
Show 2 more
  • Fix integration with exterior weather center
  • Dark mode option

Stud Finder®

Reported bugs

3 issues
  • Fails to detect known metal objects
  • Erratic behavior and constant beeping
  • Upgrade issues even after purchase

Requested features

3 requests
  • Ability to detect wooden studs
  • Longer free trial period
  • More intuitive user interface

In-app purchases

None

Aura Air

No in-app purchases

3 purchases

Stud Finder®

Subscriptions2
  • Stud Finder Pro (Weekly)3 Days trial$1.997 Days
  • Stud Finder Pro (Yearly)$9.991 Year
One-time1
  • Pro Features$1.99

Questions

Is Aura Air free?
Aura Air is free to download, with no in-app purchases.
Is Stud Finder® free?
Stud Finder® is free to download, with in-app purchases available.
Which has better reviews, Aura Air or Stud Finder®?
Stud Finder® is rated higher. Aura Air averages 3.3 out of 5 from 49 ratings, while Stud Finder® averages 4.4 from 23K ratings.
Do Aura Air or Stud Finder® have ads?
Neither Aura Air nor Stud Finder® shows ads.
Which is updated more often, Aura Air or Stud Finder®?
Aura Air ships an update every 4 weeks, and Stud Finder® monthly. Most recently, Aura Air was updated on November 3, 2026 and Stud Finder® on November 12, 2026.

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