# NaNEye vs Grounding, Earthing GroundSync

The clearest difference is in-app purchases: NaNEye at none against Grounding, Earthing GroundSync's 7. Grounding, Earthing GroundSync's advantage is update cadence (weekly vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Grounding, Earthing GroundSync sells 7 in-app purchases, starting at $7.99 per 7 days. NaNEye asks for nothing beyond the download.

NaNEye ships an update every 3 weeks, Grounding, Earthing GroundSync weekly. Both last shipped on November 4, 2026.

## The numbers

| Metric | NaNEye | Grounding, Earthing GroundSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (16 ratings)](https://appshunter.io/ios/app/grounding-earthing-groundsync/id6740164355/reviews)** |
| Number of ratings | — | **16** |
| Positive reviews | — | 77.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | — | Freemium |
| Size | 60 MB | 64 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | +12 |
| Developer | [Aladdin Persson](https://appshunter.io/developer/1761360088) | [Amenti Labs LLC](https://appshunter.io/developer/1788668924) |

## What reviewers say

### NaNEye

[App page](https://appshunter.io/ios/app/naneye/id6612032845)

**In-app purchases:** none


### Grounding, Earthing GroundSync

[App page](https://appshunter.io/ios/app/grounding-earthing-groundsync/id6740164355)

This app helps you reconnect with nature and improve your well-being through grounding and earthing practices. Track your barefoot walks, discover nature therapy spots, and monitor your health metrics like sleep and heart rate. Learn about the benefits of forest bathing and sunlight exposure to build a consistent wellness routine.

**Highlights:** Log barefoot walks by surface and activity, AI-powered surface detection, Discover local nature therapy spots, Monitor heart rate and sleep trends, Measure sunlight exposure with lux meter, Set and track wellness goals, Educational content on grounding practices

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ground Sync Pro Weekly | $7.99 | per 7 days |
| Ground Sync Pro Weekly | $7.99 | per 7 days |
| Ground Sync Pro | $9.99 | per month |
| Ground Sync Monthly | $9.99 | per month |
| Ground Sync Annual Offer | $19.99 | per year |
| Ground Sync Pro Annual | $59.99 | per year |
| Ground Sync Annual | $59.99 | per year |


## Frequently asked questions

### Is NaNEye free?

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

### Is Grounding, Earthing GroundSync free?

Grounding, Earthing GroundSync is free to download, with in-app purchases available.

### Do NaNEye or Grounding, Earthing GroundSync have ads?

Neither NaNEye nor Grounding, Earthing GroundSync shows ads.

### Which is updated more often, NaNEye or Grounding, Earthing GroundSync?

NaNEye ships an update every 3 weeks, and Grounding, Earthing GroundSync weekly. Most recently, NaNEye was updated on November 4, 2026 and Grounding, Earthing GroundSync on November 4, 2026.

---

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