# Gaussmeter NS pole vs Flow Essence

The clearest difference is in-app purchases: Flow Essence at none against Gaussmeter NS pole's 1. Flow Essence also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 17 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Gaussmeter NS pole sells 1 one-off in-app purchase. Flow Essence asks for nothing beyond the download.

Gaussmeter NS pole ships an update every 17 months, Flow Essence every 2 weeks. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Gaussmeter NS pole | Flow Essence |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (9 ratings)](https://appshunter.io/ios/app/gaussmeter-ns-pole/id615991204/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 17 months | **Every 2 weeks** |
| Monetization | Ad-supported | — |
| Size | 11 MB | 23 MB |
| Requires iOS | **15** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SHIGETO TAKAGI](https://appshunter.io/developer/519611619) | [Hans Sponberg](https://appshunter.io/developer/582176744) |

## What reviewers say

### Gaussmeter NS pole

[App page](https://appshunter.io/ios/app/gaussmeter-ns-pole/id615991204)

Measure magnetic fields in microteslas using your device's sensor. Simply place the screen near a magnet to identify its North or South pole.

**Highlights:** Magnetic field measurement, Microtesla units, S or N pole detection, Uses device's magnetic sensor

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Flow Essence

[App page](https://appshunter.io/ios/app/flow-essence/id6742063015)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Gaussmeter NS pole free?

Gaussmeter NS pole is free to download, with in-app purchases available.

### Is Flow Essence free?

Flow Essence is free to download, with no in-app purchases.

### Do Gaussmeter NS pole or Flow Essence have ads?

Gaussmeter NS pole shows ads; Flow Essence does not.

### Which is updated more often, Gaussmeter NS pole or Flow Essence?

Gaussmeter NS pole ships an update every 17 months, and Flow Essence every 2 weeks. Most recently, Gaussmeter NS pole was updated on November 1, 2026 and Flow Essence on October 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*