Pole Detector vs Kelch
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pole Detector
Easily identify the north and south poles of a magnet using your smartphone's Teslameter. This tool is ideal for scientific experiments or any production involving magnets.
- Identify north and south magnetic poles
- Uses smartphone Teslameter
- Assists with magnet experiments
- Useful for magnet production
Read full descriptionHide full description
This app makes it easy to identify the north and south pole of a magnet. Simply point the smartphone toward the magnet and it shows the pole with the help of the Teslameter. This helps with experiments or productions where magnets are used.
Kelch
Read full descriptionHide full description
An app for configuring and testing the measuring devices and sensors from Kelch-MES GmbH. The hardware version of the corresponding devices must be Bluetooth-enabled.
Screenshots
Verdict
The clearest difference is update cadence: Pole Detector at every 10 days against Kelch's every 2 months. Pole Detector also leads on iOS requirement (11.0 vs 15.3). On price, ads, 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.
Pole Detector ships an update every 10 days, Kelch every 2 months. The most recent releases landed on September 26, 2026 and October 2, 2026 respectively.
| Parameter | Pole Detector | Kelch |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (6 ratings) — better | — |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 10 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.0 — better | 15.3 |
| Further details — not scored | ||
| Size | 24 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Webcraft AG | Kelch-MES GmbH |
In-app purchases
Pole Detector
No in-app purchases
Kelch
No in-app purchases
Questions
Is Pole Detector free?
Is Kelch free?
Do Pole Detector or Kelch have ads?
Which is updated more often, Pole Detector or Kelch?
Other comparisons
