Cable Calc+ vs Stud Finder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cable Calc+
This tool assists electrical contractors by calculating cable selection and voltage drop for installations up to 25KW and 100A. It supports various cable types and includes reference methods, educational videos, and a guide to electrical test instruments.
- Cable selection calculator
- Voltage drop calculator
- Supports various cable types (SWA, Fire proof, Tri rated, Twin and earth)
- Reference methods
- Electrical test instrument guide
- Educational videos
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For over 100 years, Megger has been the premier provider of electrical test equipment and measuring instruments for power applications. The free iPhone app includes a Cable Calc tool useful to every electrical contractor Features: A comprehensive cable selection & volt drop calculator tool. for installations up 25KW 100A. Cables include: √ SWA 2, 3 and 4 core XLPE √ SWA 2, 3 7 4 core PVC √ Fire proof √ Tri rated √ Twin and earth With a range of reference methods A guide to the use of electrical test instruments Videos Plus more
Stud Finder
Easily detect metal objects like nails, screws, and wiring hidden within walls. Simply hold your phone against the surface and move it; the app will alert you with a beep and a visual indicator when metal is detected.
- Detects metal in walls
- Finds nails, screws, wiring
- Audible beep alert
- Visual indicator
- Easy to use
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Stud Finder - Metal Detector The app is used to find metal elements in the wall: nails, screws, wiring, etc. How it works: 1. Turn on the app 2. Place the back of your phone against a wall 3. Start moving the phone along the wall 4. If there is metal in the wall, you will hear a beep and the indicator on the phone will turn red It is important to know that the application may not work with older phone models Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
Screenshots
Verdict
The clearest difference is in-app purchases: Cable Calc+ at none against Stud Finder's 7. Cable Calc+ also leads on ads (none vs shown) and iOS requirement (8.0 vs 16.4). Stud Finder's advantage is rating (4.4 vs 4.0) and ratings volume (531 vs 2). On price, review sentiment, update cadence 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. Stud Finder sells 7 in-app purchases, starting at $3.99 per 7 days. Cable Calc+ asks for nothing beyond the download.
Stud Finder holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: Stud Finder has 531 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 38% of Cable Calc+'s written reviews are positive against 36% of Stud Finder's, so the app with the better star average is not the one people write more warmly about.
Cable Calc+ ships an update every 4 months, Stud Finder every 2 months. The most recent releases landed on October 13, 2026 and October 24, 2026 respectively.
| Parameter | Cable Calc+ | Stud Finder |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (2 ratings) | 4.4 (531 ratings) — better |
| Positive reviews | 37.5% of reviews — better | 35.6% of reviews |
| Number of ratings | 2 | 531 — better |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 3 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Megger | Andrei Nemtsou |
Customer experience
Cable Calc+
Stud Finder
Bugs and requests
Cable Calc+
Not enough reviews yet to summarise bugs or requests.
Stud Finder
Reported bugs
9 issues- Doesn't work on iPhone 15
- Doesn't work on iPhone 16 Pro Max
- Doesn't work on iPhone 16
- App shows 72 and beeps constantly
- App doesn't detect studs even when held over them
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- App only finds radiators, not electrical wires
- App won't load, shows only ads
- App tries to sell cryptocurrency
- App only finds metal, not wood studs
Requested features
2 requests- Specify compatible iPhone models
- Clearer cancellation process for subscriptions
In-app purchases
Cable Calc+
No in-app purchases
Stud Finder
- Premium Weekly$3.997 Days
- Welcome One-Time Offer$4.991 Month
- Welcome One-Time Offer$5.991 Month
Show 3 moreShow fewer
- Premium Monthly$7.991 Month
- Premium Annual$9.991 Year
- Premium Annual$19.991 Year
- Lifetime Premium$19.99
Questions
Is Cable Calc+ free?
Is Stud Finder free?
Which has better reviews, Cable Calc+ or Stud Finder?
Do Cable Calc+ or Stud Finder have ads?
Which is updated more often, Cable Calc+ or Stud Finder?
Other comparisons
