# Grounding, Earthing GroundSync vs TandemBaby Tracker

The clearest difference is update cadence: Grounding, Earthing GroundSync at weekly against TandemBaby Tracker's every 5 weeks. Grounding, Earthing GroundSync also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support 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 and TandemBaby Tracker sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Grounding, Earthing GroundSync ships an update weekly, TandemBaby Tracker every 5 weeks. The most recent releases landed on October 6, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Grounding, Earthing GroundSync | TandemBaby Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (15 ratings)](https://appshunter.io/ios/app/grounding-earthing-groundsync/id6740164355/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 5 weeks |
| Monetization | Freemium | — |
| Size | 64 MB | 8 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [Amenti Labs LLC](https://appshunter.io/developer/1788668924) | [MINIFIT SIA](https://appshunter.io/developer/1896023076) |

## What reviewers say

### 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

**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 |


### TandemBaby Tracker

[App page](https://appshunter.io/ios/app/tandembaby-tracker/id6765647175)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TandemBaby Pro | $6.99 | per month |
| TandemBaby Pro | $49.99 | per year |


## Frequently asked questions

### Is Grounding, Earthing GroundSync free?

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

### Is TandemBaby Tracker free?

TandemBaby Tracker is free to download, with in-app purchases available.

### Do Grounding, Earthing GroundSync or TandemBaby Tracker have ads?

Neither Grounding, Earthing GroundSync nor TandemBaby Tracker shows ads.

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

Grounding, Earthing GroundSync ships an update weekly, and TandemBaby Tracker every 5 weeks. Most recently, Grounding, Earthing GroundSync was updated on October 6, 2026 and TandemBaby Tracker on September 29, 2026.

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